What Is a General Court-Martial and When Is It Convened?

A general court-martial is the most serious trial forum in the American military justice system, the only one that can adjudge the full range of punishment the Uniform Code of Military Justice authorizes, up to and including death for the handful of offenses where Congress permits it. Because the stakes are that high, the law does not let a case arrive there casually. A general court-martial sits at the end of a defined sequence: a sworn charge, a preliminary hearing, a written legal sufficiency review, and a decision by a senior commander empowered by statute to send the case forward. Understanding when one is convened means understanding each gate the case must pass through first.

The Convening Authority Who Sends the Case Forward

A general court-martial does not assemble on its own. It is created by a convening authority, an official whom Article 22 of the UCMJ (10 U.S.C. § 822) names by position. The list is deliberately short and senior. It includes the President, the Secretary of Defense, the Secretary concerned, the commanding officer of a unified or specified combatant command, and the commanders of large organizations such as an Army group, army, corps, division, separate brigade, a fleet, an air force or air division, and corresponding Marine Corps, Space Force, and Coast Guard units. The Secretary concerned may also designate other commanders as general court-martial convening authorities. In practice this means a general or flag officer in a command billet, not a battalion or company commander.

The convening authority is the official who, in a single order, refers the charges to trial and details the court. Article 22 builds in one structural safeguard: if the commanding officer who would otherwise convene the court is an accuser, the case must be convened by a superior competent authority instead. That rule keeps the person who initiated the accusation from also controlling the tribunal that hears it.

The Article 32 Preliminary Hearing

Before charges may be referred to a general court-martial, Article 32 of the UCMJ (10 U.S.C. § 832) requires a preliminary hearing. This is the step that most clearly separates the general court-martial from lower forums, where no such hearing is required.

The hearing is not a trial and it is not full discovery. It is a focused, limited inquiry conducted by a hearing officer, who should be a certified judge advocate whenever practicable. That officer examines four questions: whether each specification alleges an offense under the UCMJ, whether there is probable cause to believe the accused committed the offense charged, whether the convening authority has court-martial jurisdiction over both the accused and the offense, and what disposition the case should receive. The officer then makes a recommendation. The Military Justice Act of 2016, effective for hearings after that reform took hold, deliberately narrowed Article 32 from the older, broader investigative proceeding into this probable-cause screening function.

Two features are worth keeping straight. First, the hearing officer’s recommendation is exactly that, a recommendation; it does not bind the convening authority, who may agree, disagree, or refer to a different forum. Second, the accused may waive the hearing in writing. A waiver removes the procedural step but does not lower the stakes of the trial that follows. The point of the hearing is screening: it exists to keep unsupported charges from reaching the system’s most punishing forum.

The Article 34 Pretrial Advice

The Article 32 hearing tests the case; Article 34 of the UCMJ (10 U.S.C. § 834) tests its legal sufficiency before referral. The convening authority may not refer a charge to a general court-martial until the staff judge advocate has provided written advice concluding that the specification alleges an offense under the UCMJ, that there is probable cause to believe the accused committed it, and that a court-martial would have jurisdiction over the accused and the offense. The staff judge advocate also gives a written recommendation on the disposition that best serves justice and discipline. Both the advice and that recommendation travel with the case when it is referred.

Article 34 is the legal-quality checkpoint. The Article 32 officer screens the facts for probable cause; the staff judge advocate confirms that the charges, as drafted, state real offenses a court can lawfully try. Only after both are satisfied does the convening authority face the referral decision.

A further layer now applies to the most serious offenses. The Office of Special Trial Counsel, created by Article 24a (10 U.S.C. § 824a) and operational at the end of December 2023, holds independent and binding authority over a defined set of “covered offenses,” which include sexual assault, murder, kidnapping, and domestic violence. For those offenses, an independent special trial counsel, not the commander, makes the binding decision to refer charges to a general or special court-martial. The convening authority cannot override that determination. This shifted the charging decision for covered offenses away from the chain of command, while the convening authority continues to detail the court and handle non-covered charges in the traditional way.

Forum Choice and the Conviction Vote

Once a case is referred, the accused faces a structural choice that shapes everything about the trial. A general court-martial may be tried by a panel of members or, on the accused’s request, by a military judge sitting alone for the findings. The two paths produce very different decision-makers.

The panel size is fixed by statute. A non-capital general court-martial sits with eight members; a capital case requires twelve. Members are senior in grade where possible, and an enlisted accused may request that at least one-third of the panel be enlisted. The conviction standard for members is set by Article 52 of the UCMJ (10 U.S.C. § 852): no one may be convicted except by the concurrence of at least three-fourths of the members present when the vote is taken. On an eight-member panel, that arithmetic means six votes are required to convict. There is no hung jury on the findings; a vote that falls short of three-fourths is an acquittal on that charge, not a mistrial.

The capital case is the sharp exception. A death sentence requires both a unanimous finding of guilt of an offense expressly made punishable by death and a separate unanimous determination by the members that the sentence shall include death. Unanimity is the rule only in that capital posture. The widely repeated notion that any sentence carrying a long mandatory minimum triggers a unanimity requirement does not appear in current Article 52, and a reader should not assume it.

If the accused instead elects trial by military judge alone, that judge decides both the law and the facts and returns the findings without a panel. The election is a strategic one, weighing how a panel of officers and an experienced judge are each likely to view the evidence.

The Punishment Ceiling and Who Imposes It

The general court-martial is reserved for the gravest matters: offenses such as murder, sexual assault, serious drug distribution, and other crimes carrying the potential for confinement well beyond a year, dishonorable discharge, dismissal of an officer, or, in the rarest cases, death. Its defining feature is the punishment ceiling. Where a lower-level court-martial is capped by statute, the general court-martial can impose any punishment the UCMJ authorizes for the offense of which the accused is convicted.

The sentencing mechanics changed substantially in late 2023. For non-capital offenses committed on or after 27 December 2023, the military judge, not the panel, imposes the sentence, even when members decided the findings, using segmented sentencing and statutory sentencing parameters. Members continue to determine the sentence only in capital cases, where the unanimity rule for death governs. Anyone reading older descriptions that say “the members sentence” should treat that as outdated for non-capital cases tried under the current regime, and confirm the applicable sentencing parameter against the current Manual for Courts-Martial. Read as a whole, then, the general court-martial is the product of a chain of independent checks, statutory convening authority, a probable-cause hearing or its waiver, written legal certification, and for covered offenses an independent referral decision, each gate built because the forum at the end of the road can take a service member’s liberty, career, and in the narrowest set of cases, life.

Sources

• Uniform Code of Military Justice, Article 22, Who may convene general courts-martial, 10 U.S.C. § 822 (https://www.law.cornell.edu/uscode/text/10/822)
• Uniform Code of Military Justice, Article 32, Preliminary hearing, 10 U.S.C. § 832 (https://www.law.cornell.edu/uscode/text/10/832)
• Uniform Code of Military Justice, Article 34, Advice of staff judge advocate and reference for trial, 10 U.S.C. § 834 (https://www.law.cornell.edu/uscode/text/10/834)
• Uniform Code of Military Justice, Article 52, Votes required for conviction, sentencing, and other matters, 10 U.S.C. § 852 (https://www.law.cornell.edu/uscode/text/10/852)
• Uniform Code of Military Justice, Article 24a, Special trial counsel, 10 U.S.C. § 824a (https://www.law.cornell.edu/uscode/text/10/824a)
• Uniform Code of Military Justice, Article 53, Imposition of sentence, 10 U.S.C. § 853 (https://www.law.cornell.edu/uscode/text/10/853)

Disclaimer

This article is for general informational purposes only and is not legal advice. It describes military law and procedure of public record, does not address any individual case, and does not create an attorney-client relationship.