How to Appeal a Military Court-Martial Conviction or Sentence

A court-martial appeal is a formal challenge to the findings or sentence of a military criminal trial. It is not a retrial. Appellate judges review the trial record for legal error instead of hearing witnesses again.

Two features set this apart from a civilian appeal. The courts are military and specialized, not New York state courts or the ordinary federal district and circuit courts. A service Court of Criminal Appeals can also weigh the factual sufficiency of the evidence and the appropriateness of the sentence under Article 66 of the UCMJ, authority that most civilian appellate courts do not hold.

Nonjudicial punishment and administrative discipline follow a different route, so this guide addresses court-martial convictions only.

An appeal must rest on a specific defect in the trial or the sentence, not simple disagreement with the outcome. The most common grounds include:

• Legal error at trial: an incorrect evidentiary ruling, a flawed instruction to the panel, or a misapplied rule of law.
• Insufficient evidence: proof that, even read in the prosecution's favor, cannot support the findings beyond a reasonable doubt.
• An inappropriate sentence: a punishment that is too severe for the offense and the service member's record.
• A constitutional violation: denial of counsel, an unreasonable search, or a coerced statement.
• Unlawful command influence: improper pressure on the panel, witnesses, or proceedings, which Article 37 of the UCMJ forbids.

Ineffective assistance of counsel is another recognized ground. It requires a showing that the defense lawyer's performance was deficient and that the result would likely have differed without the error.

Review follows defined stages, and each stage has its own authority and standard. The table below outlines the usual path after a conviction.

Eligibility for Court of Criminal Appeals review depends on the sentence. Cases with the most serious punishments, such as a punitive discharge or lengthy confinement, qualify for that court, while others may go to the Judge Advocate General under Article 69. A service member who loses at every military level may ask the U.S. Supreme Court to hear the case, though the Court grants very few such petitions.

Appellate rights are broad, and most cost nothing. A convicted service member receives military appellate defense counsel at no charge under Article 70 of the UCMJ and may also retain a civilian attorney.

You may obtain the full record of trial, including the transcript and admitted exhibits, so counsel can identify both preserved and unpreserved errors. Counsel files a written brief, and the court may hear oral argument when a case raises a close or significant legal question.

Reversals usually turn on errors that affected the outcome, not minor missteps. Preserved issues, meaning objections that trial defense counsel raised on the record, receive fuller review, while unpreserved claims face a stricter plain-error standard. Newly discovered evidence can also matter, because a petition for a new trial under Article 73 lets a service member reopen the case based on evidence unavailable at trial or on fraud on the court, within the time the statute allows.

Appellate work rewards close record analysis, legal research, and precise writing, and it differs from trial advocacy. Bringing in counsel early, ideally during post-trial processing, protects deadlines and shapes the issues the reviewing court will see. An attorney who handles criminal appeals can judge whether an error is likely reversible, coordinate with assigned military defense counsel, and focus the brief on the arguments the record can support.

The grounds, the forum, and a timely filing decide most court-martial appeals, and each depends on the record from your trial. Reviewing that record and preparing a focused appeal are tasks where an experienced appellate attorney can help you weigh your options under federal military law. Contact us to discuss your case.

The information provided in this article is for general informational purposes only and does not constitute legal advice. For guidance on your specific situation, consult a qualified attorney licensed in your jurisdiction.