Comparison of Rights in 
Military Commission Trials and 
Trials in Federal Criminal Court 
Jennifer K. Elsea 
Legislative Attorney 
January 26, 2010 
Congressional Research Service
7-5700 
www.crs.gov 
R40932 
CRS Report for Congress
P
  repared for Members and Committees of Congress        
Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Summary 
The Obama Administration’s decision to try certain detainees and other terrorist suspects in 
federal criminal court, including those accused of conspiring to commit the 9/11 terrorist attacks 
and the man arrested after a failed aircraft bombing on Christmas Day, 2009, and to try other 
detainees by military commission, has focused attention on the procedural differences between 
trials in federal court and those conducted under the Military Commissions Act (MCA), as 
recently amended. Some who are opposed to the decision argue that bringing detainees to the 
United States for trial poses a security threat and risks disclosing classified information, or could 
result in the acquittal of persons who are guilty. Others have praised the decision as recognizing 
the efficacy and fairness of the federal court system and have voiced confidence in the courts’ 
ability to protect national security while achieving justice that will be perceived as such among 
U.S. allies abroad. Some continue to object to the planned trials of detainees by military 
commission, despite the amendments Congress enacted as Title XVIII of the National Defense 
Authorization Act for Fiscal Year 2010, P.L. 111-84, because they say it demonstrates a less than 
full commitment to justice or that it casts doubt on the strength of the government’s case against 
those detainees. Four bills have been introduced in the House of Representatives to require 
military commission trials for certain classes of suspected terrorists or to authorize their 
detention: H.R. 4111, H.R. 4463, H.R. 4415, and H.R. 4127. One bill in the Senate, S. 2943, 
would require the Attorney General to consult with the Director of National Intelligence as well 
as the Secretaries of Defense and Homeland Security prior to proceeding against a terrorism 
suspect in the criminal justice system. 
This report provides a brief summary of legal issues raised by the choice of forum for trying 
accused terrorists and a table comparing selected military commissions rules under the Military 
Commissions Act, as amended, to the corresponding rules that apply in federal court. The table 
follows the same order and format used in CRS Report RL31262, Selected Procedural 
Safeguards in Federal, Military, and International Courts, to facilitate comparison with 
safeguards provided in international criminal tribunals. For similar charts comparing military 
commissions as envisioned under the MCA, as passed in 2006, to the rules that had been 
established by DOD for military commissions and to general military courts-martial conducted 
under the Uniform Code of Military Justice (UCMJ), see CRS Report RL33688, The Military 
Commissions Act of 2006: Analysis of Procedural Rules and Comparison with Previous DOD 
Rules and the Uniform Code of Military Justice, by Jennifer K. Elsea. For information about 
legislation with relevance to Guantanamo detainees, see CRS Report R40754, Guantanamo 
Detention Center: Legislative Activity in the 111th Congress, by Anna C. Henning. 
 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Contents 
Introduction ................................................................................................................................ 1 
Background ................................................................................................................................ 1 
Forum Choice for Terror Suspects ...............................................................................................3 
Sources of Rights .................................................................................................................. 4 
Federal Court ........................................................................................................................ 5 
Military Commissions ........................................................................................................... 5 
Proposed Legislation in the 111th Congress.................................................................................. 6 
Comparison of Authorities and Procedural Rights ....................................................................... 7 
Chart 1. Comparison of Rules ............................................................................................... 8 
Authority ........................................................................................................................ 8 
Procedure........................................................................................................................ 8 
Jurisdiction over Persons................................................................................................. 8 
Jurisdiction over Offenses ............................................................................................... 9 
Composition ................................................................................................................... 9 
Chart 2. Comparison of Procedural Safeguards.................................................................... 10 
Presumption of Innocence ............................................................................................. 10 
Right to Remain Silent (Freedom from Coerced Statements) ......................................... 10 
Freedom from Unreasonable Searches and Seizures ...................................................... 12 
Effective Assistance of Counsel..................................................................................... 13 
Right to Indictment and Presentment ............................................................................. 14 
Right to Written Statement of Charges........................................................................... 14 
Right to Be Present at Trial ........................................................................................... 15 
Prohibition Against Ex Post Facto Crimes..................................................................... 15 
Protection Against Double Jeopardy.............................................................................. 16 
Speedy and Public Trial................................................................................................. 17 
Burden and Standard of Proof ....................................................................................... 17 
Privilege Against Self-Incrimination (Freedom from Compelled Testimony) ................. 18 
Right to Examine or Have Examined Adverse Witnesses (Hearsay Prohibition, 
Classified Information) .............................................................................................. 19 
Right to Compulsory Process to Obtain Witnesses (Discovery)...................................... 20 
Right to Trial by Impartial Judge ................................................................................... 21 
Right to Trial by Impartial Jury ..................................................................................... 22 
Right to Appeal to Independent Reviewing Authority .................................................... 22 
Protection Against Excessive Penalties .......................................................................... 23 
 
Contacts 
Author Contact Information ...................................................................................................... 24 
 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Introduction 
The Obama Administration’s decision to try certain detainees and other terrorist suspects in 
federal criminal court, including those accused of conspiring to commit the 9/11 terrorist attacks 
and a man who tried to bring down a commercial aircraft on Christmas Day, 2009, while 
continuing to try other detainees by military commission, has focused attention on the procedural 
differences between trials in federal court and those conducted under the Military Commissions 
Act (MCA), as amended. Some who are opposed to the decision argue that bringing detainees to 
the United States for trial poses a security threat and risks disclosing classified information, or 
could more readily result in the acquittal of persons who are guilty. In addition, some have argued 
that terrorists captured in the United States could better be exploited for intelligence purposes if 
they are kept out of the criminal justice system. Others have praised the decision as recognizing 
the efficacy and fairness of the federal court system and have voiced confidence in the courts’ 
ability to protect national security while achieving justice that will be perceived as such, 
particularly among U.S. allies abroad. They argue that terrorist suspects subjected to criminal trial 
in federal court have been subject to interrogation for intelligence purposes without undermining 
the government’s ability to win a guilty verdict. Some continue to object to the planned trials of 
detainees by military commission, despite the amendments Congress enacted as Title XVIII of the 
National Defense Authorization Act for Fiscal Year 2010 (Military Commissions Act of 2009), 
P.L. 111-84, because they say it demonstrates a less than full commitment to justice or that it casts 
doubt on the strength of the government’s case against those detainees. 
This report provides a brief summary of legal issues raised by the choice of forum for trying 
accused terrorists and a table comparing authorities and composition of the federal courts to those 
of military commissions. A second table compares selected military commissions rules under the 
Military Commissions Act, as amended by the Military Commissions Act of 2009, to the 
corresponding rules that apply in federal court. This table follows the same order and format used 
in CRS Report RL31262, Selected Procedural Safeguards in Federal, Military, and International 
Courts, to facilitate comparison with safeguards provided in international criminal tribunals. For 
similar charts comparing military commissions as envisioned under the MCA, as passed in 2006, 
to the rules that had been established by DOD for military commissions and to general military 
courts-martial conducted under the Uniform Code of Military Justice (UCMJ), see CRS Report 
RL33688, The Military Commissions Act of 2006: Analysis of Procedural Rules and Comparison 
with Previous DOD Rules and the Uniform Code of Military Justice, by Jennifer K. Elsea. For 
additional analysis of issues related to the disposition of Guantanamo detainees, including 
possible trials in federal or military courts, see CRS Report R40139, Closing the Guantanamo 
Detention Center: Legal Issues, by Michael John Garcia et al. For information about legislation 
with relevance to Guantanamo detainees, see CRS Report R40754, Guantanamo Detention 
Center: Legislative Activity in the 111th Congress, by Anna C. Henning. 
Background 
On January 22, 2009, President Barack Obama issued an Executive Order requiring that the 
Guantanamo detention facility, which continues to house just under 200 aliens detained in 
connection with post-9/11 military operations, be closed no later than a year from the date of the 
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Order.1 The Order establishes a task force to review all Guantanamo detentions to assess whether 
each detainee should continue to be held by the United States, be transferred or released to 
another country, or be prosecuted by the United States for criminal offenses. Ongoing military 
commissions were essentially halted during this review period, although some pretrial 
proceedings have continued to take place. One detainee, Ahmed Ghailani, was transferred in June 
to the Southern District of New York for trial in federal court on charges related to his alleged 
role in the 1998 East Africa Embassy bombings. 
President Obama’s Detention Policy Task Force2 issued a preliminary report July 20, 2009, 
reaffirming that the White House considers military commissions to be an appropriate forum for 
trying some cases involving suspected violations of the laws of the war, although federal criminal 
court would be the preferred forum for any trials of detainees.3 The disposition of each case 
referred for criminal prosecution is to be assigned to a team comprised of DOJ and DOD 
personnel, including prosecutors from the Office of Military Commissions. The report also 
provided a set of criteria to govern the disposition of cases involving Guantanamo detainees. In 
addition to “traditional principles of federal prosecution,” the protocol identifies three broad 
categories of factors to be taken into consideration: 
•  Strength of interest, namely, the nature and gravity of offenses or underlying 
conduct; identity of victims; location of offense; location and context in which 
individual was apprehended; and the conduct of the investigation. 
•  Efficiency, namely, protection of intelligence source and methods; venue; number 
of defendants; foreign policy concerns; legal or evidentiary problems; efficiency 
and resource concerns. 
•  Other prosecution considerations, namely, the extent to which the forum and 
offenses that can be tried there permit a full presentation of the wrongful conduct, 
and the available sentence upon conviction. 
On November 13, 2009, Attorney General Holder announced his decision to transfer the five 
“9/11 conspirators,” who include Khalid Sheikh Mohammed, Walid Muhammed Salih Mubarak 
Bin Attash, Ramzi Bin Al Shibh, Ali Abdul-Aziz Ali, and Mustafa Ahmed Al Hawsawi, to the 
Southern District of New York to stand trial.4 Five other detainees are to be tried by military 
commission. These include Omar Khadr, a Canadian citizen captured as a teenager and charged 
before a military commission for allegedly throwing a hand grenade that killed a U.S. medic in 
Afghanistan; Abd al-Rahim al-Nashiri, whose military commission charges related to the October 
2000 attack on the USS Cole were previously withdrawn in February; Ahmed Mohammed 
Ahmed Haza al Darbi, who is accused of participating in an al-Qaeda plot to blow up oil tankers 
in the Straits of Hormuz, and two other detainees about whom no further information was given. 
                                                
1 Executive Order 13492, “Review and Disposition of Individuals Detained at the Guantanamo Bay Naval Base and 
Closure of Detention Facilities,” 74 Federal Register 4897, January 22, 2009 [hereinafter “Executive Order”]. 
2 This entity was created by Executive Order 13493, “Review of Detention Policy Options,” 74 Fed. Reg. 4,901 (Jan. 
22, 2009). 
3 Memorandum from the Detention Policy Task Force to the Attorney General and the Secretary of Defense, July 20, 
2009, http://www.nimj.com/display.aspx?base=MilitaryCommissions&ID=255. 
4 Press Release, U.S. Department of Justice, “Departments of Justice and Defense Announce Forum Decisions for Ten 
Guantanamo Detainees,” November 13, 2009, available at http://www.justice.gov/opa/pr/2009/November/09-ag-
1224.html. 
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As the deadline for closing the detention facility at Guantanamo passed unmet, the Obama 
Administration reportedly completed its assessment, determining that about 50 of the detainees 
held there will continue to be held without trial, that around 40 detainees will be prosecuted in 
military commission or federal court, and that the remaining 110 detainees will be released once a 
suitable country has agreed to take each of them.5 However, the transfer of 30 detainees of 
Yemeni nationality was stymied because an Al Qaeda affiliate in Yemen is suspected to have been 
behind the Christmas bombing attempt.6 
Forum Choice for Terror Suspects 
U.S. law provides for the trial of suspected terrorists, including those captured abroad, in several 
ways. Those who are accused of violating specific federal laws are triable in federal criminal 
court. Provisions in the U.S. Criminal Code relating to war crimes and terrorist activity apply 
extraterritorially and may be applicable to some detainees.7 Those accused of violating the law of 
war or committing the offenses enumerated in the MCA, as amended by the Military 
Commissions Act of 2009,8 may be tried by military commissions under the MCA, or by general 
court-martial under the UCMJ.9 
The procedural protections afforded to the accused in each of these forums may differ. The MCA 
authorizes the establishment of military commissions with jurisdiction to try alien “unprivileged 
enemy belligerents”10 for offenses made punishable by the MCA or the law of war. 
Notwithstanding the recent amendments to the MCA, which generally enhance due process 
guarantees for the accused, critics continue to question their constitutionality.  
One issue that has been raised by proponents of the use of military commissions is the concern 
that federal criminal courts would endow accused terrorists with constitutional rights they would 
not otherwise enjoy. The MCA does not restrict military commissions from exercising jurisdiction 
within the United States, and the Supreme Court has previously upheld the use of military 
commissions against “enemy belligerents” tried in the United States under procedural rules that 
differed from the federal rules.11 The Supreme Court has not settled the question regarding the 
extent to which constitutional guarantees apply to aliens detained at Guantanamo, making any 
difference in rights due to location of the trials difficult to predict. Some view the unpredictability 
of the Supreme Court’s acceptance of the military commission procedures as a factor in favor of 
using civilian trial courts. 
                                                
5 See Charlie Savage, Detainees Will Still Be Held, but Not Tried, Official Says, NY TIMES, Jan. 22, 2010. 
6 Id. 
7 See, e.g., 18 U.S.C. chapter 113B (terrorism-related offenses); 18 U.S.C. § 2441 (war crimes). 
8 Title XVIII of the National Defense Authorization Act for Fiscal Year 2010, P.L. 111-84. 
9 See 10 U.S.C. § 818 (jurisdiction of general court-martial over any person triable under the law of war). The 
jurisdiction of common law military commissions under the UCMJ is also preserved to try “offenders or offenses that 
by statute or by the law of war may be tried by military commissions, provost courts, or other military tribunals.” 10 
U.S.C. § 821. No proposals have been floated to use general courts-martial or military commissions under the UCMJ to 
try Guantanamo detainees. This report will discuss federal court trials and trials under the Military Commissions Act of 
2009. 
10 This term replaces “alien unlawful enemy combatant” who were subject to jurisdiction under the Military 
Commissions Act of 2006.  
11 See Ex parte Quirin, 317 U.S. 1, 31 (upholding military commissions used to try eight German saboteurs in the 
United States). 
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Sources of Rights 
The Fifth Amendment to the Constitution provides that “no person shall be ... deprived of life, 
liberty, or property, without due process of law.” Due process includes the opportunity to be heard 
whenever the government places any of these fundamental liberties at stake. The Constitution 
contains other explicit rights applicable to various stages of a criminal prosecution. Criminal 
proceedings provide both the opportunity to contest guilt and to challenge the government’s 
conduct that may have violated the rights of the accused. The system of procedural rules used to 
conduct a criminal hearing, therefore, serves as a safeguard against violations of constitutional 
rights that take place outside the courtroom, for example, during arrests and interrogations. 
The Bill of Rights applies to all citizens of the United States and all aliens within the United 
States.12 However, the methods of application of constitutional rights, in particular the remedies 
available to those whose rights might have been violated, may differ depending on the severity of 
the punitive measure the government seeks to take and the entity deciding the case. The 
jurisdiction of various entities to try a person accused of a crime could have a profound effect on 
the procedural rights of the accused. The type of judicial review available also varies and may be 
crucial to the outcome. 
International law also contains some basic guarantees of human rights, including rights of 
criminal defendants and prisoners. Treaties to which the United States is a party are expressly 
made a part of the law of the land by the Supremacy Clause of the Constitution13 and may be 
codified through implementing legislation,14 or in some instances, may be directly enforceable by 
the judiciary.15 International law is incorporated into U.S. law,16 but does not take precedence 
over statute. The law of war, a subset of international law, applies to cases arising from armed 
conflicts (i.e., war crimes).17 It remains unclear how the law of war applies to the current 
hostilities involving non-state terrorists, and the nature of the rights due to accused terrorist/war 
criminals may depend in part on their status under the Geneva Conventions. The Supreme Court 
has ruled that Al Qaeda fighters are entitled at least to the baseline protections applicable under 
Common Article 3 of the Geneva Conventions,18 which includes protection from the “passing of 
sentences and the carrying out of executions without previous judgment pronounced by a 
regularly constituted court, affording all the judicial guarantees which are recognized as 
indispensable by civilized peoples.”19 
                                                
12 Zadyvydas v. Davis, 533 U.S. 678, 693 (2001). ("the Due Process Clause applies to all ‘persons’ within the United 
States, including aliens, whether their presence here is lawful, unlawful, temporary or permanent”); Wong Wing v. 
United States, 163 U.S. 228, 238 (1896) ("all persons within the territory of the United States are entitled to the 
protection guarantied by [the Fifth and Sixth Amendments], and … aliens shall not be held to answer for a capital or 
other infamous crime, unless on a presentment or indictment of a grand jury, nor be deprived of life, liberty, or property 
without due process of law”). 
13 U.S. CONST. Art. VI (“[A]ll Treaties ... shall be the Supreme Law of the Land; ...”). 
14 See, e.g. 18 U.S.C. § 2441 (War Crimes Act). 
15 Treaty provisions that are self-executing are binding on the courts in the absence of implementing legislation. See 
RESTATEMENT (THIRD) OF FOREIGN RELATIONS § 113 (1987). Most human rights treaties, however, are not likely to be 
held self-executing. 
16 Id. § 111. 
17 For a brief explanation of the sources of the law of war, see generally CRS Report RL31191, Terrorism and the Law 
of War: Trying Terrorists as War Criminals before Military Commissions, by Jennifer K. Elsea. 
18 Hamdan v. Rumsfeld, 548 U.S. 557, 630 (2006). 
19 The Geneva Convention Relative to the Treatment of Prisoners of War, August 12, 1949, art. 3 § 1(d), 6 U.S.T. 
(continued...) 
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Federal Court 
The federal judiciary is established by Article III of the Constitution and consists of the Supreme 
Court and “inferior tribunals” established by Congress.20 It is a separate and co-equal branch of 
the federal government, independent of the executive and legislative branches, designed to be 
insulated from the public passions. Its function is not to make law, but rather to interpret law and 
decide disputes arising under it. Federal criminal law and procedures are enacted by Congress and 
codified primarily in title 18 of the U.S. Code. The Supreme Court promulgates procedural rules 
for criminal trials at the federal district courts, subject to Congress’s approval. These rules, 
namely the Federal Rules of Criminal Procedure (Fed. R. Crim. P.) and the Federal Rules of 
Evidence (Fed. R. Evid.), incorporate procedural rights that the Constitution and various statutes 
demand. The tables provided at the end of this report cite relevant rules or court decisions, but 
make no effort to provide an exhaustive list of authorities. 
Military Commissions 
The Constitution empowers Congress to declare war and “make rules concerning captures on land 
and water,”21 to define and punish violations of the “Law of Nations,”22 and to make regulations 
to govern the armed forces.23 The power of the President to convene military commissions flows 
from his authority as Commander in Chief of the Armed Forces24 and his responsibility to execute 
the laws of the nation.25 Under the Articles of War and subsequent statute,26 the President has at 
least implicit authority to convene military commissions to try offenses against the law of war.27 
The authority and objectives underlying military courts-martial and military commissions are not 
coextensive.28 Rather than serving the internally directed purpose of maintaining discipline and 
order of the troops, the military commission is externally directed at the enemy as a means of 
waging successful war by punishing and deterring offenses against the law of war. Military 
commissions have historically been used in connection with military government in cases of 
occupation or martial law where ordinary civil government was impaired. 
                                                             
(...continued) 
3317). The identical provision is included in each of the four Geneva Conventions and applies to any “conflict not of an 
international character.” The majority declined to accept the President’s interpretation of Common Article 3 as 
inapplicable to the conflict with Al Qaeda and interpreted the phrase “in contradistinction to a conflict between 
nations,” which the Geneva Conventions designate a “conflict of international character.” 
20 U.S. CONST. art. III, § 1. 
21 Id. art. I, § 8, cl. 11. 
22 Id. art. I, § 8, cl. 10. 
23 Id. art. I, § 8, cl. 14. 
24 Id. art. II, § 2, cl. 1. 
25 Id. art. II, § 3. 
26 The Articles of War were re-enacted at 10 U.S.C. § 801 et seq. as part of the UCMJ. Although there is no case law 
interpreting the UCMJ as authorizing military commissions, the relevant sections of the UCMJ, which recognize the 
concurrent jurisdiction of military commissions to deal with “offenders or offenses designated by statute or the law of 
war,” are essentially identical to the corresponding language in the Articles of War. See 10 U.S.C. § 821. 
27 Ex parte Quirin, 317 U.S. 1 (1942). 
28 See WILLIAM WINTHROP, MILITARY LAW AND PRECEDENTS 831 (2d ed. 1920) (describing distinction between courts-
martial and military tribunals). 
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Jurisdiction of military commissions is limited to time of war and to trying offenses recognized 
under the law of war or as designated by statute.29 While case law suggests that military 
commissions could try U.S. citizens as enemy belligerents,30 the Military Commissions Act 
permits only aliens to be tried. The United States first used military commissions to try enemy 
belligerents accused of war crimes during the occupation in Mexico in 1847, and made heavy use 
of them in the Civil War and in the Philippine Insurrection.31 However, prior to President Bush’s 
Military Order of 2001 establishing military commissions for certain alien terrorism suspects, no 
military commissions had been convened since the aftermath of World War II. As non-Article III 
courts, military commissions have not been subject to the same constitutional requirements that 
are applied in Article III courts.32 The Military Commissions Act authorizes the Secretary of 
Defense to establish regulations for military commissions in accordance with its provisions. 
Proposed Legislation in the 111th Congress 
Three bills have been introduced in the House of Representatives to require military commission 
trials for certain classes of suspected terrorists or prohibit their prosecution in federal court. H.R. 
4463, the Military Tribunals for Terrorists Act of 2010, would require that any foreign national 
who “has engaged in conduct constituting an offense relating to a terrorist attack” against persons 
or property in the United States or against U.S. personnel or property abroad and who is subject 
to jurisdiction under the MCA be tried by military commission. H.R. 4127 would make military 
commissions the mandatory forum for trying all persons subject to jurisdiction under the MCA by 
amending 10 U.S.C. § 948c to require that alien unprivileged enemy belligerents who are “subject 
to trial for any alleged conduct for which a term of incarceration or the death penalty may be 
sought or obtained” may only be tried by such commissions. H.R. 4111 would prohibit the 
Department of Justice from prosecuting any “unprivileged enemy combatant”33 for any offense, 
apparently regardless of where such persons are tried. 
Another bill, H.R. 4415, the Terrorist Detention and Prosecution Act of 2010, does not address 
where suspected terrorists are to be prosecuted, but would amend the MCA to add a new category 
of unlawful enemy combatant (reversing the change in terminology to “alien unprivileged enemy 
belligerent” introduced by the 2009 amendment to the MCA, 10 U.S.C. § 948a(7)) and provide 
the President express authority to detain “for military purposes” all categories of unlawful enemy 
combatants until he determines they no longer pose a threat to the United States or its allies. The 
new category would consist of anyone the President determines: 
(i) is closely associated with or has provided material support to al Qaeda or any other 
organization dedicated to committing acts of terrorism against the United States; 
                                                
29 10 U.S.C. § 821. Statutory offenses for which military commissions may be convened are limited to aiding the 
enemy, 10 U.S.C. § 904, and spying, 10 U.S.C. § 906. These offenses are explicitly included in the MCA. 
30 See Ex parte Quirin, 317 U.S. 1 (1942). 
31 For more information about the history of military commissions in the United States, see CRS Report RL31191, 
Terrorism and the Law of War: Trying Terrorists as War Criminals before Military Commissions, by Jennifer K. Elsea. 
For more information about the jurisdiction of military commissions, see CRS Report R40752, The Military 
Commissions Act of 2006 (MCA): Background and Proposed Amendments, by Jennifer K. Elsea. 
32 See Ex parte Quirin, 317 U.S. at 38; Ex parte Milligan, 71 U.S. (4 Wall.) 2, 123 (1866) (noting a servicemember 
“surrenders his right to be tried by the civil courts”). 
33 “Unprivileged enemy combatant” is defined by reference to 10 U.S.C. § 948a(7), which currently provides a 
definition for “unprivileged enemy belligerent.” 
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(ii) has taken up or conspired to take up arms on behalf of al Qaeda; and 
(iii) has committed or conspired to commit acts of terrorism in the United States or against 
American citizens or targets, regardless of the location of the individual’s capture. 
S. 2943 would require the Attorney General to consult with the Director of National Intelligence 
as well as the Secretaries of Defense and Homeland Security and the Director of the National 
Counterterrorism Center prior to proceeding against a terrorism suspect in the criminal justice 
system, including by conducting a custodial interrogation. The Attorney General would have the 
authority to proceed over the objection of any of these officials only with the President’s express 
approval. 
Comparison of Authorities and Procedural Rights 
The following tables provide a comparison of the military commissions under the revised 
Military Commissions Act and standard procedures for federal criminal court under the Federal 
Rules of Criminal Procedure and the Federal Rules of Evidence. Chart 1 compares the legal 
authorities for establishing both types of tribunals, the jurisdiction over persons and offenses, and 
the structures of the tribunals. Chart 2, which compares procedural safeguards incorporated in the 
MCA to those applicable in federal criminal cases, follows the same order and format used in 
CRS Report RL31262, Selected Procedural Safeguards in Federal, Military, and International 
Courts, Selected Procedural Safeguards in Federal, Military, and International Courts, by 
Jennifer K. Elsea, in order to facilitate comparison of the those tribunals to safeguards provided in 
the international military tribunals that tried World War II crimes at Nuremberg and Tokyo, and 
contemporary ad hoc tribunals set up by the UN Security Council to try crimes associated with 
hostilities in the former Yugoslavia and Rwanda. For a comparison with previous rules 
established under President George W. Bush’s Military Order, refer to CRS Report RL33688, The 
Military Commissions Act of 2006: Analysis of Procedural Rules and Comparison with Previous 
DOD Rules and the Uniform Code of Military Justice. 
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Chart 1. Comparison of Rules 
Authority 
Federal Criminal Court 
Military Commissions Act of 2009 
U.S. Constitution, Article III, establishing the Judiciary; 
U.S. Constitution, Article I, § 8, in particular, cl. 10, “To 
Article 1, § 8.  
define and punish Piracies and Felonies committed on the 
high Seas, and Offences against the Law of Nations;” cl. 
11, “To declare War, grant Letters of Marque and 
Reprisal, and make Rules concerning Captures on Land 
and Water”; and cl. 14 (Necessary and Proper Clause). 
Procedure 
Federal Criminal Court 
Military Commissions Act of 2009 
Most criminal offenses are defined and criminal 
The Secretary of Defense may prescribe rules of 
procedure established in Title 18, U.S. Code. The Federal  procedure for military commissions. Such rules may not 
Rules of Criminal Procedure (Fed. R. Crim. P.) are set 
be inconsistent with the MCA (as amended). Procedural 
forth as an appendix to Title 18. 
rules for general courts-martial are to apply unless the 
MCA or UCMJ provide otherwise. Consultation with the 
Attorney General is required only in cases of exceptions, 
which are permissible “as may be required by the unique 
circumstances of the conduct of military and intelligence 
operations during hostilities or by other practical need.”  
10 U.S.C. § 949a . 
Jurisdiction over Persons 
Federal Criminal  Court 
Military Commissions Act of 2009 
Varies depending on criminal statute. Generally applies to  Alien unprivileged enemy belligerents are subject to trial 
U.S. nationals and aliens within the United States or 
by military commission. 
within the Special Territorial and Maritime  Jurisdiction 
of the United States (SMTJ) as defined in 18 U.S.C § 7. 
10 U.S.C. § 948c. 
Aliens are covered under some, but not all, definitions of 
The term “unprivileged enemy belligerent” is defined to 
the SMTJ. In particular, the areas outside the territories 
mean  “an individual (other than a privileged belligerent) 
of the United States apply to aliens only if a U.S. national 
who  has engaged in hostilities against the United States 
is a perpetrator or victim of the offense. Statutes  may 
or its coalition partners; or has purposeful y and 
apply to extraterritorial conduct of U.S. nationals, or 
materially supported hostilities against the United States 
more rarely, certain aliens. 
or its coalition partners....” or an individual who was a 
member of Al Qaeda at the time the offense occurred.  
“Privileged belligerent” is defined in terms of the Geneva 
Convention Relative to the Treatment of Prisoners of 
War (GPW) Art. 4.  
10 U.S.C. § 948a(6-7). 
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Jurisdiction over Offenses 
Federal Criminal Court 
Military Commissions Act of 2009 
Offenses described by statute, typical y defined in Title 
A military commission has jurisdiction to try any offense 
18, U.S. Code. 
made punishable by the MCA or the law of war when 
committed by an alien unlawful enemy combatant that 
 
occurred “in the context of and associated with 
hostilities,” whether before, on, or after September 11, 
2001. Military commissions are expressly authorized to 
determine their own jurisdiction. 
10 U.S.C. § 948.  
Offenses listed in 10 U.S.C. § 950t include the following: 
murder of protected persons; attacking civilians, civilian 
objects, or protected property; pil aging; denying quarter; 
taking hostages; employing poison or similar weapons; 
using protected persons or property as shields; torture, 
cruel or inhuman treatment; intentionally causing serious 
bodily injury; mutilating or maiming; murder in violation 
of the law of war; destruction of property in violation of 
the law of war; using treachery or perfidy; improperly 
using a flag of truce or distinctive emblem; intentionally 
mistreating a dead body; rape; sexual assault or abuse; 
hijacking or hazarding a vessel or aircraft; terrorism; 
providing material support for terrorism; wrongfully 
aiding the enemy; spying, contempt; perjury and 
obstruction of justice. Conspiracy, attempts, and 
solicitation to commit the defined acts are also 
punishable. 
10 U.S.C. § 950t.  
Composition 
Federal Criminal Court 
Military Commissions Act of 2009 
A federal judge and twelve jurors, unless a jury trial is 
A military judge and at least five members, 10 U.S.C. 
waived by the defendant. 
§ 948m; unless the death penalty is sought, in which case 
no fewer than 12 members must be included. 
Fed. R. Crim. P. 23. 
10 U.S.C. § 949m(c). 
In death penalty cases where twelve members are not 
reasonably available because of physical conditions or 
military exigencies, the convening authority may approve 
a commission with as few as 9 members. 
10 U.S.C. § 949m 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Chart 2. Comparison of Procedural Safeguards 
Presumption of Innocence  
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“The principle that there is a 
If the defendant fails to enter a 
Before a vote is taken on the 
presumption of innocence in favor of  proper plea, a plea of not guilty will 
findings, the military judge must 
the accused is the undoubted law, 
be entered.  
instruct the commission members 
axiomatic and elementary, and its 
“that the accused must be presumed 
enforcement lies at the foundation of  Fed. R. Crim. P. 11(a). 
to be innocent until his guilt is 
the administration of our criminal 
Defendant is entitled to jury 
established by legal and competent 
law.” 
instructions explaining that guilt 
evidence beyond reasonable doubt.” 
Coffin v. United States, 156 U.S. 432,  must be proved on the evidence 
10 U.S.C. § 949l. 
453 (1895). 
beyond a reasonable doubt.  
If an accused refuses to enter a plea 
Taylor v. Kentucky, 436 U.S. 478 
or pleads guilty but provides 
(1978). 
inconsistent testimony, or if it 
Defendant is entitled to appear in 
appears that he lacks proper 
court without unnecessary physical 
understanding of the meaning and 
restraints or other indicia of guilt, 
effect of the guilty plea, the 
such as appearing in prison uniform, 
commission must treat the plea as 
that may be prejudicial to jury. 
denying guilt. 
See Holbrook v. Flynn, 475 U.S. 560 
10 U.S.C. § 949i. 
(1986). 
Right to Remain Silent (Freedom from Coerced Statements) 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“No person ... shall be compelled in 
Incriminating statements made by 
Sections a, b, and d of Article 31, 
any criminal case to be a witness 
defendant under duress or without 
UCMJ, is expressly made inapplicable 
against himself ....” 
prior Miranda warning are 
to military commission trials under 
inadmissible as evidence of guilt in a 
the MCA, as amended.  These 
Amendment V. 
criminal trial.  
provide that no person subject to 
the UCMJ may compel any person to 
Miranda v. Arizona, 384 U.S. 436 
incriminate himself or interrogate an 
(1966). 
accused without first informing him 
Before a jury is allowed to hear 
of his right to remain silent, and that 
evidence of a defendant’s confession,  statements obtained in violation of 
the court must determine that it was  the above or through other unlawful 
voluntarily given. 
inducement may not be received in 
evidence against him in a trial by 
18 U.S.C. § 3501.  
court-martial. 
10 U.S.C. § 948b(d). 
Confessions allegedly elicited 
through coercion or compulsory 
self-incrimination that are otherwise 
admissible are not to be excluded at 
trial unless their admission violates 
section 948r.  
10 U.S.C. § 949a(b)(2)(C). 
 Statements elicited through torture 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
or cruel, inhuman, or degrading 
treatment prohibited by 42 U.S.C. 
§ 2000dd are inadmissible except 
against a person accused of torture 
or such treatment, regardless of 
whether the statement was made 
prior to the enactment of that 
provision. No statement of the 
accused is admissible at trial unless 
the military judge finds that the 
statement is reliable and sufficiently 
probative; and that the statement 
was made “incident to lawful 
conduct during military operations at 
the point of capture or during closely 
related active combat engagement” 
and the interests of justice would 
best be served by admission of the 
statement into evidence; or that the 
statement was voluntarily given, 
taking into consideration all relevant 
circumstances, including military and 
intelligence operations during 
hostilities; the accused’s age, 
education level, military training; and 
the change in place or identity of 
interrogator between that statement 
and any prior questioning of the 
accused. 
10 U.S.C. § 948r. 
Evidence derived from impermissible 
interrogation methods is not barred. 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Freedom from Unreasonable Searches and Seizures 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“The right of the people to be 
Evidence, including derivative 
Not provided.  
secure ... against unreasonable 
evidence, gained through 
searches and seizures, shal  not be 
unreasonable searches and seizures 
The Secretary of Defense may 
violated; and no Warrants shall issue,  may be excluded in court.  
provide that “evidence seized 
but upon probable cause...” 
outside the United States shall not 
Boyd v. United States, 116 U.S. 616 
be excluded from trial by military 
Amendment IV. 
(1886); Nardone v. United States, 308 
commission on the grounds that 
U.S. 338 (1938); Fed. R. Crim. P. 41. 
the evidence was not seized 
pursuant to a search warrant or 
A search warrant issued by a 
other authorization.” 
magistrate on a showing of probable 
cause is generally required for law 
10 U.S.C. § 949a. 
enforcement agents to conduct a 
search of an area where the subject 
has a reasonable expectation of 
privacy, including searches and 
seizures of telephone or other 
communications and emissions of heat 
and other phenomena detectable with 
means other than human senses.  
Katz v. United States, 389 U.S. 347 
(1967). 
Evidence resulting from overseas 
searches of American property by 
foreign officials is admissible unless 
foreign police conduct shocks judicial 
conscience or participation by U.S. 
agents is so substantial as to render 
the action that of the United States.  
United States v. Barona, 56 F.3d 1087 
(9th Cir. 1995). 
Searches of alien property overseas 
are not necessarily protected by the 
Fourth Amendment. 
United States v. Verdugo-Urquidez, 
494 U.S. 259 (1990). 
The Fourth Amendment's warrant 
requirement does not govern 
searches conducted abroad by United 
States agents.   
In re Terrorist Bombings of U.S. 
Embassies in East Africa, 552 F.3d 157 
(2d. Cir. 2008).  
 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Effective Assistance of Counsel  
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“In al  criminal prosecutions, the 
Defendants in criminal cases have 
At least one qualifying military 
accused shall enjoy the right ... to 
the right to representation by an 
defense counsel is to be detailed “as 
have the Assistance of Counsel for 
attorney at all stages of prosecution. 
soon as practicable.” 
his defence.” 
The defendant may hire an attorney 
or, if indigent, have counsel 
10 U.S.C. § 948k. 
Amendment VI. 
appointed at the government’s 
The accused is entitled to select one 
expense. If two or more co-
“reasonably available” military 
defendants are represented by one 
counsel to represent him. The 
attorney, the court must inquire as 
accused is not entitled to have more 
to whether a conflict of interest 
than one military counsel, but 
exists. 
“associate defense counsel” may be 
Fed. R. Crim. P. 44. 
authorized pursuant to regulations. 
Conversations between attorneys 
10 U.S.C.  §§ 948c, 948k. 
and clients are privileged.  
The accused may also hire a civilian 
Fed. R. Evid. 501. 
attorney who 
Procedures for ensuring adequate 
1. is a U.S. citizen, 
representation of defendants are 
2. is admitted to the bar in any state, 
outlined at 18 U.S.C. §§ 3005 (capital  district, or possession, 
cases) and 3006A. 
3. has never been disciplined, 
 
4. has a SECRET clearance (or 
higher, if necessary for a particular 
case), and 
5. agrees to comply with all 
applicable rules. 
10 U.S.C. § 949c(b)(3). 
If civilian counsel is hired, the 
detailed military counsel serves as 
associate counsel. 
10 U.S.C. § 949c(b)(5). 
No attorney-client privilege is 
mentioned. 
Adverse personnel actions may not 
be taken against defense attorneys 
because of the “zeal with which such 
officer, in acting as counsel, 
represented any accused before a 
military commission.…” 
10 U.S.C. § 949b. 
In capital cases, the accused is 
entitled  to be represented, “to the 
greatest extent practicable, by at 
least one additional counsel who is 
learned in applicable law,” who may 
be a civilian. 
10 U.S.C. § 949a. 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Right to Indictment and Presentment 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“No person shal  be held to answer 
Where the accused is in danger of 
UCMJ Article 32, which provides for 
for a capital, or otherwise infamous 
being subjected to an infamous 
impartial pretrial hearings prior to 
crime, unless on a presentment or 
punishment if convicted, he has the 
referral of a matter to general court-
indictment of a Grand Jury, except in  right to insist that he shal  not be 
martial, is expressly made 
cases arising in the land or naval 
tried except on the accusation of a 
inapplicable.  
forces, or in the Militia, when in 
grand jury.  
actual service in time of War or 
10 U.S.C. § 948b(d)(1)(C). 
public danger ....” 
Ex parte Wilson, 114 U.S. 417 
(1885); Fed. R. Crim. P. 7. 
Charges and specifications against an 
Amendment V. 
accused are to be signed by a person 
Jurors must be selected from a fair 
subject to UCMJ swearing under 
cross section of the community; 
oath that the signer has “personal 
otherwise, an accused can challenge 
knowledge of, or reason to believe, 
the indictment.  
the matters set forth therein,” and 
that they are “true in fact to the best 
28 U.S.C. §§ 1861 et seq. 
of his knowledge and belief.” The 
Once an indictment is given, its 
accused is to be informed of the 
scope may not be increased. 
charges and specifications against 
him as soon as practicable after 
Ex parte Bain, 121 U.S. 1 (1887). 
charges are sworn. 
(Amendments to an indictment must 
10 U.S.C. § 948q. 
undergo further grand jury process.) 
Right to Written Statement of Charges 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“In al  criminal prosecutions, the 
Defendant is entitled to be informed 
The trial counsel assigned is 
accused shall enjoy the right ... to be 
of the nature of the charge with 
responsible for serving counsel a 
informed of the nature and cause of 
sufficiently reasonable certainty to 
copy of the charges upon the 
the accusation; ...” 
allow for preparation of defense. 
accused, in English and, if 
appropriate, in another language that 
Amendment VI. 
Cook v. United States, 138 U.S. 157 
the accused understands, “sufficiently 
(1891). 
in advance of trial to prepare a 
defense.” 
10 U.S.C. § 948s. 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Right to Be Present at Trial 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
The Confrontation Clause of 
The language, history, and logic of 
The accused has the right to be 
Amendment VI guarantees the 
Rule 43 support a straightforward 
present at all sessions of the military 
accused’s right to be present in the 
interpretation that prohibits the trial 
commission except deliberation or 
courtroom at every stage of his trial. 
in absentia of a defendant who is not 
voting, unless exclusion of the 
present at the beginning of trial.  
accused is permitted under § 949d. 
Illinois v. Allen, 397 U.S. 337 (1970). 
Crosby v. United States, 506 U.S. 
10 U.S.C. § 949a(b)(1)(B). 
255, 262 (1993); Fed. R. Crim. P. 43. 
The accused may be excluded from 
When defendant knowingly absents 
attending portions of the proceeding 
himself from court during trial, court  if the military judge determines that 
may “proceed with trial in like 
the accused persists in disruptive or 
manner and with like effect as if he 
dangerous conduct. 
were present.” 
10 U.S.C. § 949d(e). 
Diaz v. United States, 223 U.S. 442, 
455 (1912). 
Prohibition Against Ex Post Facto Crimes  
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“No ... ex post facto law shall be 
Congress may not pass a law 
The MCA expressly provides 
passed.” 
punishing conduct that was not a 
jurisdiction over the defined crimes, 
crime when perpetrated, increasing 
whether committed prior to, on or 
Art. I, § 9, cl. 3. 
the possible sentence for a crime, or 
after September 11, 2001.  
reducing the government’s 
evidentiary burden.  
10 U.S.C. § 948d. 
Calder v. Bull, 3 Dall. (3 U.S.) 386 
The act declares that, because it 
(1798); Ex Parte Garland, 4 Wal  (71 
codifies offenses that “have 
U.S.) 1867. 
traditionally been triable under the 
law of war or otherwise triable by 
military commission,” the subchapter 
defining offenses “does not preclude 
trial for offenses that occurred 
before the date of the enactment of 
this subchapter, as so amended.” 
10 U.S.C. § 950p. 
Crimes punishable by military 
commissions under the new chapter 
are contained in subchapter VII. It 
includes the crime of conspiracy, 
which a plurality of the Supreme 
Court in Hamdan v. Rumsfeld viewed 
as invalid as a charge of war crimes. 
548 U.S. 557 (2006). 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Protection Against Double Jeopardy  
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“... nor shall any person be subject 
Jeopardy attaches once the jury is 
“No person may, without his 
for the same offence to be twice put 
sworn or where there is no jury, 
consent, be tried by a military 
in jeopardy of life or limb; ...” 
when the first evidence is presented. 
commission [under the MCA] a 
If the trial is terminated after 
second time for the same offense.” 
Amendment V. 
jeopardy has attached, a second trial 
Jeopardy attaches when a guilty 
Subject to “dual sovereign” doctrine,  may be barred in a court under the 
finding becomes final after review of 
that is, federal and state courts may 
same sovereign, particularly where it 
the case has been completed. 
prosecute an individual for the same 
is prosecutorial conduct that brings 
10 U.S.C. § 949h. 
conduct without violating the clause. 
about the termination of the trial. 
Illinois v. Somerville, 410 U.S. 458 
The United States may not appeal an 
(1973). 
order or ruling that amounts to a 
finding of not guilty. 
10 U.S.C. § 950d(b). 
The convening authority may not 
revise findings or order a rehearing 
in any case to reconsider a finding of 
not guilty of any specification or a 
ruling which amounts to a finding of 
not guilty, or reconsider a finding of 
not guilty of any charge, unless there 
has been a finding of guilty under a 
specification laid under that charge, 
which sufficiently alleges a violation. 
The convening authority may not 
increase the severity of the sentence 
unless the sentence prescribed for 
the offense is mandatory. 
10 U.S.C. § 950b(d). 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Speedy and Public Trial 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“In al  criminal prosecutions, the 
Trial is to commence within seventy 
There is no right to a speedy trial. 
accused shall enjoy the right to a 
days of indictment or original 
Article 10, UCMJ, 10 U.S.C. § 810, 
speedy and public trial, ....” 
appearance before court. 
requiring immediate steps to inform 
arrested person of the specific 
Amendment VI. 
18 U.S.C. § 3161. 
wrong of which he is accused and to 
Closure of the courtroom during 
try him or to dismiss the charges and 
trial proceedings is justified only if 1) 
release him, is expressly made 
the proponent of closure advances 
inapplicable to military commissions. 
an overriding interest likely to be 
10 U.S.C. § 948b(d). 
prejudiced; 2) the closure is no 
broader than necessary; 3) the trial 
The military judge may close all or 
court considers reasonable 
part of a trial to the public only after 
alternatives to closure; and 4) the 
making a determination that such 
trial court makes findings adequate 
closure is necessary to protect 
to support closure.  
information, the disclosure of which 
would be harmful to national 
See Wal er v. Georgia, 467 U.S. 39, 
security interests or to the physical 
48 (1984). 
safety of any participant. 
10 U.S.C. § 949d(c). 
Burden and Standard of Proof 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
Due Process requires the 
Defendant is entitled to jury 
Commission members are to be 
prosecution to prove the defendant 
instructions clarifying that the 
instructed that the accused is 
guilty of each element of a crime 
prosecution has the burden of 
presumed to be innocent until his 
beyond a reasonable doubt. 
presenting evidence sufficient to 
“guilt is established by legal and 
prove guilt beyond a reasonable 
competent evidence beyond 
In re Winship, 397 U.S. 358 (1970). 
doubt. 
reasonable doubt”; that any 
reasonable doubt as to the guilt of 
Cool v. United States, 409 U.S. 100 
the accused must result in acquittal; 
(1978). 
that reasonable doubt as to the 
Jury verdicts must be unanimous.  
degree of guilt must be resolved in 
favor of the lower degree as to 
Fed. R. Crim. P. 31. 
which there is no reasonable doubt; 
and that the burden of proof is on 
the government. 
10 U.S.C. § 949l. 
Two-thirds of the members must 
concur on a finding of guilty, except 
in capital cases (which must be 
unanimous) and cases involving 
confinement for more than ten 
years.  
10 U.S.C. § 949m. 
The Secretary of Defense must 
prescribe that the military judge is to 
exclude any evidence, the probative 
value of which is substantially 
outweighed by the danger of unfair 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
prejudice, confusion of the issues, or 
misleading the members of the 
commission, or by considerations of 
undue delay, waste of time, or 
needless presentation of cumulative 
evidence. 
10 U.S.C. § 949a. 
Privilege Against Self-Incrimination (Freedom from Compelled Testimony) 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“No person ... shall be compelled in 
Defendant may not be compel ed to 
“No person shal  be required to 
any criminal case to be a witness 
testify. Jury may not be instructed 
testify against himself or herself at a 
against himself...” 
that guilt may be inferred from the 
proceeding of a military commission 
defendant’s refusal to testify. 
under this chapter.” 
Amendment V. 
Griffin v. California, 380 U.S. 609 
10 U.S.C. § 948r. 
(1965). 
No person subject to the UCMJ may 
Witnesses may not be compelled to 
compel any person to make a 
give testimony that may be 
statement or produce evidence 
incriminating unless given immunity 
before any military tribunal if the 
for that testimony. 
statement or evidence is not 
material to the issue and may tend 
18 U.S.C. § 6002. 
to degrade him. 
10 U.S.C. § 831(c). 
Adverse inferences drawn from a 
failure to testify are not expressly 
prohibited; however, members are 
to be instructed that “the accused 
must be presumed to be innocent 
until his guilt is established by legal 
and competent evidence.” 
10 U.S.C. § 949l. 
There does not appear to be a 
provision for immunity of witnesses, 
although 18 U.S.C. § 6002 may apply 
to military commissions. 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Right to Examine or Have Examined Adverse Witnesses (Hearsay Prohibition, 
Classified Information) 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“In al  criminal prosecutions, the 
Rules of Evidence prohibit generally 
“Defense counsel may cross-
accused shall enjoy the right ... to be 
the introduction at trial of 
examine each witness for the 
confronted with the witnesses 
statements made out of court to 
prosecution who testifies before a 
against him; ....” 
prove the truth of the matter stated 
military commission under this 
unless the declarant is unavailable for  chapter.” 
Amendment VI. 
cross-examination at trial (hearsay 
rule).  
10 U.S.C. § 949c. 
Fed. R. Evid. 801 et seq. 
The Secretary of Defense is 
permitted to provide that hearsay 
The government is required to 
evidence that would not be 
disclose to defendant any relevant 
admissible at a general court-martial 
evidence in its possession or that 
is admissible if adequate notice is 
may become known through due 
given and the military judge 
diligence. 
determines that the statement is 
reliable and is offered as evidence of 
Fed. R. Crim. P. 16. 
a material fact, that direct testimony 
The use of classified information is 
from the witness is not available or 
governed by the Classified 
would have an adverse impact on 
Information Procedures Act (CIPA, 
military or intelligence operations, 
codified at 18 U.S.C. App. 3).    
and that the general purposes of the 
rules of evidence and the interests of 
CIPA recognizes the government’s 
justice will best be served by 
entitlement to prevent the disclosure  admission of the statement into 
of classified information, even where 
evidence.  In determining reliability , 
it is material to the defense. 
the military judge may be obligated 
However, in such cases  the court is 
to consider the degree to which the 
empowered to dismiss the 
statement is corroborated, the 
indictment against the defendant or 
indicia of reliability within the 
impose other sanctions as may be 
statement itself, and whether the will 
appropriate.  The United States may 
of the declarant was overborne,  
ask the court to permit the 
substitution of a statement admitting 
10 U.S.C. § 949a(b)(3)(D) . 
relevant facts that the specific 
The burden of persuasion to 
classified information would tend to 
demonstrate unreliability or lack of 
prove or of a summary of the 
probative value appears to be on the 
specific classified information. The 
profferer of the evidence. (Language 
court is required to grant the 
providing otherwise was repealed). 
government’s motion if it finds that 
the statement or summary will 
The protection of classified 
provide the defendant with 
information is governed by a new 
substantially the same ability to make  subchapter V, 10 U.S.C. §§ 949p-1 – 
his defense as would disclosure of 
949p-7.  Subchapter V provides that 
the specific classified information.  
the government cannot be 
compelled to disclose classified 
information to anyone not 
authorized to receive it.  If the 
government claims a privilege, the 
military judge may not authorize the 
discovery of or access to the 
classified information unless he 
determines the evidence is 
noncumulative, relevant, and helpful 
to a legally cognizable defense, 
rebuttal of the prosecution’s case, or 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
to sentencing.  If the military judge 
determines disclosure or access is 
necessary, the military judge must 
grant the government’s request to 
delete or withhold specified items of 
classified information; to substitute a 
summary for classified information; 
or to substitute a statement 
admitting relevant facts that the 
classified information or material 
would tend to prove, so long as the 
alternative procedure would provide 
the accused with substantially the 
same ability to make a defense. If the 
prosecution makes a motion for 
protective measures in camera, the 
accused has no opportunity to 
request a reconsideration. 
Right to Compulsory Process to Obtain Witnesses (Discovery) 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“In al  criminal prosecutions, the 
Defendants have the right to 
Defense counsel is to be afforded a 
accused shall enjoy the right ... to 
subpoena witnesses to testify in their  reasonable opportunity to obtain 
have compulsory process for 
defense. The court may punish 
witnesses and other evidence, 
obtaining witnesses in his favor, ....” 
witnesses who fail to appear.  
including evidence in the possession 
of the United States, according to 
Amendment VI. 
Fed. R. Crim. P.  17. 
DOD regulations. The military judge 
The prosecution is required to 
is authorized to compel witnesses 
disclose defendant’s statements, 
under U.S. jurisdiction to appear. 
whether written or oral, that are 
The trial counsel is obligated to 
material to the case.  The 
disclose exculpatory evidence of 
government must also provide 
which he is aware to the defense, 
results or reports of any physical or 
along with mitigating evidence, 
mental examination of the defendant.  evidence that reasonably tends to 
impeach the credibility of a 
Upon a defendant’s request, the 
government witness who is to be 
government must permit the 
called at trial.  The trial counsel is 
defendant to inspect  and make 
deemed to be aware of information 
copies or photos of tangible objects, 
that is known or reasonably should 
buildings or places, within the 
be known to any government 
government’s control if  
officials who participated in the 
(i) the item is material to preparing 
investigation and prosecution of the 
the defense;  
case 
(i ) the government intends to use 
10 U.S.C. § 949j. 
the item in its case-in-chief at trial; 
or  
(iii) the item was obtained from or 
belongs to the defendant. 
At the defendant’s request, the 
government must provide a written 
summary of any expert testimony 
that the government intends to use 
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Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
during its case-in-chief at trial. 
Fed. R. Crim. P. 16 
The government must also give 
notice of any witnesses it intends to 
depose, general y permitting the 
defendant to attend the deposition. 
Fed. R. Crim. P. 15 
Right to Trial by Impartial Judge 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“The Judicial Power of the United 
 The independence of the judiciary 
Military judges must take an oath to 
States, shall be vested in one 
from the other branches was 
perform their duties faithfully. 
supreme Court, and in ... inferior 
established to ensure trials are 
courts .... The Judges ... shall hold 
decided impartially, without the 
10 U.S.C. § 949g. 
their Offices during good Behaviour, 
“potential domination by other 
The convening authority is 
and shall  ... receive ... a 
branches of government.” 
prohibited from preparing or 
Compensation, which shall not be 
reviewing any report concerning the 
diminished during their Continuance 
United States v. Will, 449 U.S. 200, 
effectiveness, fitness, or efficiency of 
in Office.” 
217-18 (1980). 
a military judge. 
Article III § 1. 
Judges with a pecuniary interest in 
the outcome of a case or other 
10 U.S.C. § 948j(f). 
conflicts of interest are disqualified 
A military judge may not be assigned 
and must recuse themselves. 
to a case in which he is the accuser, 
28 U.S.C. § 455. 
an investigator, a witness, or a 
counsel. 
10 U.S.C. § 948j(c). 
The military judge may not consult 
with the members of the 
commission except in the presence 
of the accused, trial counsel, and 
defense counsel, nor may he vote 
with the members of the 
commission. 
10 U.S.C. § 948j(d). 
Convening authority may not 
censure, reprimand, or admonish the 
military judge. No person may 
attempt to coerce or use 
unauthorized means to influence the 
action of a commission. 
10 U.S.C. § 949b. 
The military judge may be challenged 
for cause. 
10 U.S.C. § 949f. 
 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Right to Trial by Impartial Jury  
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“The Trial of all Crimes, except in 
The pool from which juries are 
Military commission members must 
Cases of Impeachment, shal  be by 
drawn must represent a fair cross 
take an oath to perform their duties 
Jury; ....” 
section of the community.  
faithfully. 
Art III § 2 cl. 3. 
Taylor v. Louisiana, 419 U.S. 522 
10 U.S.C. § 949g. 
(1975). 
“In al  criminal prosecutions, the 
The accused may make one 
accused shall enjoy the right to a ... 
There must further be measures to 
peremptory challenge, and may 
trial, by an impartial jury of the state 
ensure individual jurors selected are 
challenge other members for cause. 
....” 
not biased (i.e., the voir dire process).  10 U.S.C. § 949f. 
Amendment VI. 
Lewis v. United States, 146 U.S. 370 
(1892); see Fed. R. Crim. P. 24 
No convening authority may 
(peremptory challenges). 
censure, reprimand, or admonish the 
commission or any member with 
The trial must be conducted in a 
respect to the findings or sentence 
manner designed to avoid exposure 
or the exercise of any other 
of the jury to prejudicial material or 
functions in the conduct of the 
undue influence. If the locality of the 
proceedings. No person may 
trial has been so saturated with 
attempt to coerce or, by any 
publicity about a case that it is 
unauthorized means, influence the 
impossible to assure jurors will not 
action of a commission or any 
be affected by prejudice, the 
member thereof, in reaching the 
defendant is entitled to a change of 
findings or sentence in any case. 
venue.  
Military commission duties may not 
be considered in the preparation of 
Irvin v. Dowd, 366 U.S. 717 (1961). 
an effectiveness report or any similar 
document with potential impact on 
career advancement. 
10 U.S.C. § 949b. 
Right to Appeal to Independent Reviewing Authority 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“The Privilege of the Writ of Habeas 
Originally, the writ of habeas corpus 
The accused may submit matters for 
Corpus shal  not be suspended, 
permitted col ateral attack upon a 
consideration by the convening 
unless when in Cases of Rebellion or 
prisoner’s conviction only if the 
authority with respect to the 
Invasion the public Safety may 
sentencing court lacked subject 
authenticated findings or sentence of 
require it” 
matter jurisdiction. It later evolved 
the military commission. The 
into an avenue for the chal enge of 
convening authority must review 
Article I § 9 cl. 2. 
federal and state convictions on 
timely submissions prior to taking 
There is no express requirement for 
other due process grounds, to 
action. 
appellate review.  Appellate courts 
determine whether a prisoner’s 
10 U.S.C. § 950b. 
may exercise jurisdiction only where 
detention is “contrary to the 
Congress has authorized it.  
Constitution or laws or treaties of 
The accused may appeal a final 
the United States.” 28 U.S.C. §§ 
decision of the military commission 
 E.g. Liberty Mut. Ins. Co. v. Wetzel, 
2241 et seq. 
with respect to any properly raised 
424 U.S. 737 (1976).   
Federal appel ate courts may review 
issue to the Court of Military 
the final decisions of district courts 
Commission Review, a body 
as well as certain interlocutory 
composed of appellate military 
orders. 
judges who meet the same 
qualifications as military judges or 
28 U.S.C. §§ 1291-92. 
comparable qualifications for civilian 
judges. 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
10 U.S.C. § 950f. 
Once these appeals are exhausted, 
the accused may appeal the final 
decision to the United States Court 
of Appeals for the District of 
Columbia Circuit, with respect to 
the findings and sentence as 
approved by the convening authority 
and as affirmed or set aside as 
incorrect in law by the United States 
Court of Military Commission 
Review.  The appellate court may 
take action only with respect to 
matters of law, including the 
sufficiency of the evidence to 
support the verdict. D.C. Cir. 
appel ate decisions may be reviewed 
by the Supreme Court under writ of 
certiorari. 
10 U.S.C. § 950g. 
Other review by a civilian court, 
including review on petition of 
habeas corpus, is no longer expressly 
prohibited. 
Protection Against Excessive Penalties 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
“Excessive bail shal  not be required, 
The death penalty is not per se 
Military commissions may adjudge 
nor excessive fines imposed, nor 
unconstitutional, but its 
“any punishment not forbidden by 
cruel and unusual punishments 
discriminatory and arbitrary 
[the MCA], including the penalty of 
inflicted.” 
imposition may be, and the death 
death when specifically 
penalty may not be automatic.  
authorized....” 
Amendment VIII. 
See Gregg v. Georgia, 428 U.S. 153 
10 U.S.C. § 948d. 
(1976); 18 U.S.C.§ 3592 (mitigating 
/aggravating circumstances). 
A vote of two-thirds of the members 
present is required for sentences of 
When the death penalty may be 
up to 10 years. Longer sentences 
imposed, the defendant shal  be 
require the concurrence of three-
provided a list of potential jurors and  fourths of the members present. The 
witnesses, unless the court finds that  death penalty must be approved 
such action might jeopardize the life 
unanimously on a unanimous guilty 
or safety of any person.  
verdict. Where the death penalty is 
sought, a panel of 12 members is 
18 U.S.C. § 3432. 
required (unless not “reasonably 
A special hearing is held to 
available”). The death penalty must 
determine whether the death 
be expressly authorized for the 
sentence is warranted. 
offense, and the charges must have 
expressly sought the penalty of 
18 U.S.C. § 3593. 
death. 
In capital cases, the accused is 
10 U.S.C. § 949m. 
entitled to assistance of at least 2 
An accused who is sentenced to 
Congressional Research Service 
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Comparison of Military Commission Trials and Trials in Federal Criminal Court 
 
Military Commissions Act of 
U.S. Constitution 
Federal Criminal Court 
2009 
counsel, one of whom has expertise 
death may waive his appeal, but may 
in death penalty cases. Counsel in 
not withdraw an appeal. 
such cases have free access to the 
accused at all reasonable hours. The 
10 U.S.C. § 950c. 
defendant is allowed to make any 
The death sentence may not be 
proof in his defense that he can 
executed until the commission 
produce by lawful witnesses, and is 
proceedings have been final y 
entitled to have the same process to 
adjudged lawful and the time for 
compel witnesses to appear as is 
filing a writ has expired or the writ 
ordinarily granted to the 
has been denied. The President must 
prosecution. 
approve the sentence. 
18 U.S.C. § 3005 
10 U.S.C. § 950i. 
The court must stay a death 
In capital cases, the accused is 
sentence if the defendant appeals the  entitled to assistance of counsel with 
conviction or sentence. 
expertise in death penalty cases, 
Fed. R. Crim. P. 38. 
which may include civilian counsel 
paid for by the government. 
10 U.S.C. § 949a. 
 
 
Author Contact Information 
 
Jennifer K. Elsea 
   
Legislative Attorney 
jelsea@crs.loc.gov, 7-5466 
 
 
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