Inside a Court-Martial Trial: From Opening Statements to Verdict

A service member who has been referred to a general or special court-martial faces a proceeding that looks familiar at a glance and behaves very differently underneath. The seating, the oaths, the objections, and the closing arguments echo a civilian criminal trial. The arithmetic that decides the case does not. A military panel does not need to be unanimous to convict, it cannot hang, and since late 2023 the people who decide guilt usually do not decide the punishment. Understanding how a contested trial actually moves, and where the decisive thresholds sit, is what separates an informed observer from someone who only knows the courtroom from television.

This guide walks the trial from the moment the court is assembled to the announcement of a sentence, and it concentrates on the mechanics that carry the most weight: who must prove what, how many votes a conviction takes, and who imposes the punishment under current law. Those mechanics are the spine of every court-martial, and the rest of the system references them rather than restating them.

Who decides, and what they must be told

Before any testimony, the accused has already made one of the most consequential choices in the case: the forum. A court-martial can be tried by a military judge sitting alone or by a panel of members, and that election shapes everything that follows. The forum decision, the categories of court-martial, and how members are seated through challenges and voir dire are treated in their own discussions; this guide assumes the panel is already chosen and turns to what happens once trial begins.

What does not change with the forum is the burden. The government must prove every element of every charged offense beyond a reasonable doubt, and the accused is presumed innocent from the first word to the last. The accused has no obligation to testify, to call a single witness, or to say anything at all, and a decision to remain silent cannot be held against him. This allocation of proof is the foundation that the entire trial is built to test. Where other parts of the military justice system mention the reasonable-doubt standard, they point back to it; the trial itself is where it does its work.

In a judge-alone trial, the military judge resolves both the law and the facts. In a members trial, the judge rules on the law and the panel finds the facts, with the judge instructing the members on the legal rules they must apply before they deliberate.

Opening statements and the case-in-chief

A contested trial opens with statements from each side. These are not evidence and not argument; they are previews, a roadmap of what counsel expects the testimony and exhibits to show. Trial counsel, representing the government, goes first because the government carries the burden. Defense counsel may follow immediately or wait until the government has rested its case, a tactical choice about whether to frame the dispute early or respond once the prosecution’s evidence is on the record.

The government then presents its case-in-chief. Witnesses are called and questioned by the side that called them on direct examination, then tested by the opposing side on cross-examination. Direct examination generally uses open, non-leading questions so the witness describes events in their own words. Cross-examination is where leading questions are not only permitted but expected, because its purpose is to probe memory, perception, bias, and consistency rather than to elicit a fresh narrative. Redirect and recross can follow to repair or further attack what the cross opened up.

Throughout, the Military Rules of Evidence govern what the fact-finder is allowed to hear. Relevance is the threshold, and even relevant evidence can be excluded when its tendency to unfairly prejudice, confuse, or mislead substantially outweighs its value. Specialized rules carry particular force in military cases: the limits on prior-bad-act evidence offered to prove character, the rape-shield protections in sexual-offense cases, and the psychotherapist-patient privilege each shape what reaches the panel. The detailed operation of those rules belongs to the dedicated discussion of military evidence; what matters here is that the body of admitted evidence, and nothing else, is what the members may weigh.

After the government rests, the defense may present evidence, though it is never required to. The accused may testify or not, and if he does not, the panel is instructed that his silence proves nothing.

The vote: how many it takes to convict

Once the evidence closes, the military judge instructs the members on the law, and in a members trial the case turns on a counting rule that surprises most people who assume military and civilian juries work alike. A court-martial panel convicts on a three-fourths vote. It does not require unanimity for most offenses, and there is no hung jury.

Because the panel sizes are fixed, the three-fourths rule produces concrete numbers. Under the standardized panel sizes that took effect on 1 January 2019, a general court-martial is composed of eight members, a special court-martial of four members, and a capital general court-martial of twelve. Applying the three-fourths threshold:

Court-martial	Members	Votes to convict (3/4)
General court-martial (non-capital)	8	6 of 8
Special court-martial	4	3 of 4
Capital general court-martial	12	unanimous (12 of 12) for the capital offense

The number that does the work in a typical general court-martial is six. If at least six of the eight members vote guilty, the accused is convicted of that specification. If fewer than six vote guilty, the result is an acquittal on that specification. There is no middle ground and no retrial for failure to agree. A capital offense is the exception in two directions at once: a finding of guilt must be unanimous, and a death sentence requires a unanimous vote as well.

This is why a military trial cannot end in a hung jury. In a civilian court, a jury that cannot reach the required margin produces a mistrial and the case may be tried again. A court-martial panel that does not reach three-fourths for guilt has, by definition, reached an acquittal. The voting is by secret written ballot, the senior member presides over deliberations but holds an equal vote and votes last, and rank confers no extra weight.

The findings themselves are not limited to a flat guilty or not guilty. A panel may convict of a lesser-included offense, or convict by exceptions and substitutions, finding the accused guilty of what the evidence actually proved rather than the full specification as charged. A charge of theft of a larger sum may come back as theft of a smaller proven amount; a charge of a more serious assault may come back as a lesser one.

Sentencing under current law: the judge now imposes it

Here the most important recent change in military trial practice appears, and it is the point on which older explanations are now simply wrong. For offenses committed on or after 27 December 2023, the military judge imposes the sentence in a non-capital general or special court-martial, even when members decided guilt. Members no longer sentence in those cases. The only place members still set the punishment is a capital case.

This reversed the long-standing practice in which the same panel that convicted also fixed the sentence. The change came from the FY2022 National Defense Authorization Act and took effect on 27 December 2023, and it brought two related features with it: segmented sentencing and sentencing parameters. Segmented sentencing means the judge announces a separate term for each offense of conviction rather than one lump sentence for the whole case, and specifies whether multiple terms run consecutively or concurrently. Sentencing parameters, set by the President, place each offense into a category with a defined confinement range, from the lowest band up through life with eligibility for parole, and the judge sentences within that range unless specific findings justify a departure that must be explained on the record.

The sentencing hearing itself remains adversarial. The government may present evidence in aggravation showing the offense was committed in a particularly serious way, including victim-impact evidence. The defense presents matters in extenuation, mitigation, and rehabilitation: the circumstances surrounding the offense, the service member’s record, awards, family situation, and prospects. The accused holds a right unusual in American law, the unsworn statement, which lets him address the sentencing authority directly without being placed under oath and without exposure to cross-examination, though the government may rebut specific false factual claims.

A negotiated plea agreement, governed by Article 53a under the current rules, can cap the sentence the accused will ultimately serve. Plea agreements bind the court-martial, which is a meaningful change from the older clemency-based pretrial-agreement framework.

From verdict to the record

When the judge announces the sentence, the trial stage closes, but the case does not end. The accused is advised of post-trial and appellate rights, and the matter moves into entry of judgment, a narrow window of convening-authority clemency, and potential appellate review. That entire post-trial and appeals ladder is the subject of its own dedicated guide and is not reached here; the trial guide ends where the announcement ends.

Frequently asked questions

Does a military panel have to be unanimous to convict?

No, except in a capital case. For most offenses a court-martial convicts on a three-fourths vote of the members. In a typical eight-member general court-martial that means six votes. A capital offense is the exception: a finding of guilt must be unanimous, and so must a vote for death.

What happens if the panel does not reach three-fourths?

The accused is acquitted of that specification. A court-martial cannot hang. Unlike a civilian jury, which can deadlock and force a mistrial, a military panel that fails to reach three-fourths for guilt has by definition returned a not-guilty finding, and there is no retrial for failure to agree.

Who decides the sentence in a court-martial today?

For offenses committed on or after 27 December 2023, the military judge imposes the sentence in non-capital general and special courts-martial, even when members found the accused guilty. Members sentence only in capital cases. This is a change from the prior practice in which the panel that convicted also sentenced, and older descriptions that say members always sentence no longer reflect current law.

Can the accused be forced to testify?

No. The accused has a right against self-incrimination and cannot be compelled to testify. The choice belongs to the accused alone. If the accused does not testify, the government may not comment on that silence and the fact-finder may not draw any negative inference from it.

What is the difference between an opening statement and a closing argument?

An opening statement previews what the evidence is expected to show and is given before the evidence comes in; it is not argument. A closing argument comes after all the evidence and interprets it, urging the fact-finder to draw particular conclusions. Counsel may argue inferences in closing that would be improper in an opening.

Can a panel convict of something other than the charged offense?

Yes. A panel may find the accused guilty of a lesser-included offense, or guilty by exceptions and substitutions, meaning it convicts of what the evidence actually proved rather than the specification exactly as charged. A larger alleged amount or a more serious alleged act can be pared down to the proven version.

Sources and Authorities

• Uniform Code of Military Justice, Article 51 (voting and rulings) and Article 52, 10 U.S.C. 852 (number of votes required; three-fourths to convict; unanimity in capital cases).
• Uniform Code of Military Justice, Article 56, 10 U.S.C. 856 (sentencing; segmented sentencing and sentencing parameters).
• Manual for Courts-Martial, United States (2024 edition), Rules for Courts-Martial 1001 and 1002 (sentencing proceedings and parameters) and 920 (instructions on findings).
• Military Rules of Evidence 401-403 (relevance and balancing), 404(b) (other acts), 412 (sexual-offense evidence), and 513 (psychotherapist-patient privilege).
• Military Justice Act of 2016 (standardized panel sizes effective 1 January 2019).
• National Defense Authorization Act for Fiscal Year 2022, Section 539E (military judge sentencing; effective for offenses committed on or after 27 December 2023).
• Article 53a, UCMJ, 10 U.S.C. 853a (plea agreements).

Disclaimer

This article explains how a contested court-martial proceeds under current military law and is provided for general educational purposes. It is not legal advice, it does not address the facts of any particular case, and military law changes by statute, executive order, and amendment to the Manual for Courts-Martial. Sentencing rules in particular depend on the date an offense was committed, so the applicable law in a specific matter may differ from the general framework described here. Anyone facing a court-martial relies on qualified military defense counsel for advice about their own situation.