A general court-martial is the military’s highest-level criminal trial court, used to try the most serious offenses under the Uniform Code of Military Justice. It can impose any punishment the UCMJ authorizes, up to and including death for certain crimes and a dishonorable discharge or dismissal for those separated from service.1Victim and Witness Assistance Council. Military Justice Overview In broad shape it resembles a civilian felony trial, but it runs on its own rules, its own courts, and a chain of command with no real civilian parallel.
Where It Sits Among the Three Courts-Martial
The military uses three tiers of courts-martial, and the label matters. A summary court-martial is the lowest, handled by a single officer and limited to minor misconduct. A special court-martial is the middle tier, roughly comparable to a misdemeanor court: confinement tops out at one year, and the worst discharge available for an enlisted member is a bad-conduct discharge. A general court-martial sits above both. It can adjudge any punishment the UCMJ does not forbid, including death when the offense specifically allows it, lengthy confinement, and a dishonorable discharge or an officer’s dismissal.2Office of the Law Revision Counsel. 10 USC 818 – Art. 18. Jurisdiction of General Courts-Martial A dishonorable discharge or a dismissal can only come from a general court-martial.
Because the possible punishments are severe, the procedural protections are the strongest too. An Article 32 preliminary hearing is required before referral, the accused gets a qualified military defense attorney, and the case is tried before a military judge with a panel of members. The lower tiers do not guarantee any of that.
Who Can Be Tried
The UCMJ reaches further than most civilians assume. The core group is active-duty service members across every branch, including the Space Force. It also covers cadets and midshipmen at the service academies, members of the Fleet Reserve and Fleet Marine Corps Reserve, reservists and National Guard members during inactive-duty training or federal service, and retired members of a regular component who are entitled to pay.3Office of the Law Revision Counsel. 10 USC 802 – Art. 2. Persons Subject to This Chapter In limited circumstances, civilians serving alongside the military overseas can also fall under court-martial jurisdiction.4TJAGLCS Criminal Law Deskbook. 03 Jurisdiction
Jurisdiction is worldwide. A court-martial’s reach follows the person, not the place, so an offense committed in Germany, in Japan, or aboard a ship at sea can still be tried at a general court-martial.
Who Runs a General Court-Martial
The Convening Authority
A general court-martial does not simply happen. Someone with statutory authority has to convene it. That power belongs to senior officials: the President, the Secretary of Defense, the Secretary of the relevant service branch, and commanding officers at the level of a division commander, fleet commander, or equivalent and above.5Office of the Law Revision Counsel. 10 USC 822 – Art. 22. Who May Convene General Courts-Martial The convening authority selects the panel members and decides whether to send the case to trial after reviewing the preliminary hearing results. If the convening authority is personally an accuser, the decision moves to a higher authority.
The Judge, Panel, and Counsel
A military judge presides, rules on legal issues, instructs the panel on the law, and keeps the trial on procedural rails. In noncapital cases, the accused can ask to be tried by the judge alone. That option is off the table when the death penalty is in play.
When a panel hears the case, current rules require eight members for a noncapital general court-martial and twelve for a capital one. Panel members are officers, or a mix of officers and enlisted members if the accused is enlisted and requests it. No panel member may be junior in rank to the accused.6Office of the Law Revision Counsel. 10 USC 825 – Art. 25. Who May Serve on Courts-Martial
The trial counsel prosecutes the case. The defense counsel represents the accused. Every accused is entitled to a qualified military defense attorney at no cost and may also hire a civilian attorney at personal expense.7United States Army Trial Defense Service. What You Should Know About Your Right to an Attorney
How a Case Reaches Trial
Investigation and Charges
A general court-martial starts long before anyone walks into a courtroom. Military law enforcement, such as the Criminal Investigation Division for the Army, the Naval Criminal Investigative Service for the Navy and Marines, or the Office of Special Investigations for the Air Force, works the case. If enough evidence develops, charges are formally preferred against the service member.
The accused can be placed in pretrial confinement during this phase. When that happens, the government must promptly inform the accused of the charges and move the case forward with reasonable diligence. Punishment before trial is not allowed, and any lawful pretrial confinement is credited day-for-day against a final sentence if the accused is convicted.8United States Court of Appeals for the Armed Forces. Miscellaneous Matters – Speedy Trial – Article 10
The Article 32 Preliminary Hearing
Before charges can be referred to a general court-martial, an Article 32 preliminary hearing has to be held unless the accused waives it in writing.9Office of the Law Revision Counsel. 10 USC 832 – Art. 32. Preliminary Hearing Required Before Referral to General Court-Martial It is not a mini-trial. The hearing officer decides only whether the charges allege a real UCMJ offense and whether probable cause supports them, then makes a recommendation. The referral decision itself stays with the convening authority or, for certain offenses, with the special trial counsel.
The Office of Special Trial Counsel
One of the biggest recent changes to military justice is the Office of Special Trial Counsel. For a defined set of serious offenses, including murder, sexual assault, domestic violence, child abuse, and kidnapping, a special trial counsel now holds exclusive authority to decide whether the offense qualifies and whether to prosecute and refer, independent of the military chain of command.10Office of the Law Revision Counsel. 10 USC 824a – Art. 24a. Special Trial Counsel Congress built the office as a deliberate structural reform after concluding that commander control over cases like sexual assault created conflicts of interest. The special trial counsel reports directly to the Secretary of the relevant service branch, not to the chain of command of either the accused or the victim.11U.S. Army. Office of Special Trial Counsel
How the Trial Itself Works
Once referred, the case moves to arraignment and a plea. If the plea is not guilty, the trial unfolds much like a civilian criminal trial: pretrial motions, opening statements, evidence, direct and cross-examination of witnesses, and closing arguments.
After the evidence, the panel deliberates. Conviction requires the agreement of at least three-fourths of the members present. A death sentence has a higher bar: a unanimous finding of guilty on a capital offense and a unanimous vote that the sentence include death.12Office of the Law Revision Counsel. 10 USC 852 – Art. 52. Votes Required for Conviction, Sentencing, and Other Matters Other sentencing decisions also take a three-fourths vote. This is a real departure from civilian courts, where a conviction typically demands a unanimous jury.
If the accused is convicted, the case moves straight into a sentencing phase. The prosecution may offer aggravating evidence and victim impact testimony. The defense may put in the accused’s service record, character witnesses, and mitigation. The panel, or the judge if the accused elected judge alone, then fixes the sentence.
Punishments a General Court-Martial Can Impose
A general court-martial has the broadest sentencing reach in the military justice system. The Manual for Courts-Martial sets the maximum for each offense, and a general court-martial can impose any combination of authorized punishments up to those maximums.2Office of the Law Revision Counsel. 10 USC 818 – Art. 18. Jurisdiction of General Courts-Martial Available punishments include:
- Death, only for offenses where the UCMJ specifically authorizes it, such as murder and certain wartime offenses, and only on a unanimous panel vote.
- Confinement, up to life imprisonment for the most serious offenses.
- A dishonorable discharge for enlisted members or a dismissal for officers, the most severe form of separation from the service.
- A bad-conduct discharge, a less severe but still punitive separation available for enlisted members.
- Total or partial forfeiture of pay and allowances.
- Reduction in rank, for enlisted members down to the lowest enlisted grade.
- Reprimand, fines, and hard labor without confinement, alone or alongside heavier punishments.
Consequences That Follow the Sentence
The courtroom sentence is only part of what a conviction does. When a general court-martial sentence includes confinement of more than six months, or confinement of any length combined with a punitive discharge, the accused automatically forfeits all pay and allowances during confinement. The forfeiture operates by law; the court does not have to order it separately. If the accused has dependents, the convening authority can waive some or all of the forfeiture for up to six months so the family still receives support.
A general court-martial conviction is treated broadly as the equivalent of a felony. Federal law bars anyone convicted of a crime punishable by more than one year of imprisonment from possessing firearms or ammunition.13Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts Because general court-martial offenses almost always carry maximums above one year, a conviction generally triggers that firearms prohibition. A dishonorable discharge or dismissal also creates lasting barriers to federal employment, veteran benefits, and many professional licenses.
Rights of the Accused
The stakes are high enough that the UCMJ builds in substantial protections. The accused is presumed innocent until proven guilty beyond a reasonable doubt, the same standard used in civilian criminal courts. The right to remain silent applies at every stage, from the first investigative contact through trial.
The accused is entitled to a military defense attorney, a judge advocate, at no cost, and may also retain a civilian attorney at personal expense.7United States Army Trial Defense Service. What You Should Know About Your Right to an Attorney The right attaches early, when the person is first suspected of an offense, not just when charges are filed. The accused can also confront and cross-examine every government witness, compel witnesses to testify for the defense, and put on their own evidence.
In noncapital cases, the accused chooses between a panel and the military judge alone. The choice has tactical weight: a panel conviction takes three-fourths of the members, so the defense needs to persuade only a few to avoid it, while a judge alone offers no similar split-vote cushion.
Appeals After a Conviction
The process does not end at sentencing. The convening authority reviews the case with limited power to grant clemency. Recent reforms have narrowed that discretion sharply, especially for sexual assault and other covered offenses, and meaningful clemency at that stage is now uncommon outside pretrial agreement terms.
The heavier review comes from the military appellate courts. Each service branch has its own Court of Criminal Appeals — Army, Navy-Marine Corps, Air Force, or Coast Guard — and these courts can examine both the findings and the sentence, weigh the sufficiency of the evidence, and set aside a conviction or reduce a sentence when errors occurred.
From there the case can go to the United States Court of Appeals for the Armed Forces, a civilian court of five judges appointed by the President. Beyond that, the accused can petition the U.S. Supreme Court for review by writ of certiorari, and the UCMJ specifically allows that petition to be filed without prepayment of fees or the typical financial affidavit.14Office of the Law Revision Counsel. 10 USC 867a – Art. 67a. Review by the Supreme Court The military appellate system is thorough, and the path from conviction to final resolution can run for years.