When a service member believes that evidence helpful to their defense is being withheld, the instinct is often to confront the commanding officer directly and demand it. That instinct is understandable, but it misreads how access to evidence works in the military justice system. Evidence in a court-martial is not something a commander hands over or withholds at personal discretion, and demanding it informally rarely produces it. The right to evidence is a legal right enforced through legal procedures, and that is exactly why a military attorney is not optional in this situation but central to it.
The legal foundation for equal access
The military justice system builds equal access to evidence into its very structure. Article 46 of the Uniform Code of Military Justice provides that the trial counsel, the defense counsel, and the court-martial have equal opportunity to obtain witnesses and other evidence. That principle of equal access is implemented through Rule for Courts-Martial 701, the discovery rule. Under RCM 701, after charges are served, the government must, on defense request, permit the defense to inspect documents, papers, and tangible objects within the control of military authorities that are material to the preparation of the defense or that the government intends to use in its case-in-chief, and the rule specifically requires disclosure of items obtained from or belonging to the accused.
Two features of this framework explain why a personal demand to a commander misses the mark. First, the duty to disclose runs to the government’s case as represented by trial counsel, not to an individual commander’s goodwill. Second, military discovery is designed to be at least as broad as discovery in federal civilian court, which means the defense is entitled, by rule and by case law, to far more than a commander would likely volunteer on request.
Why informal demands fail and counsel succeeds
A commanding officer is not the neutral custodian of evidence. The CO is part of the command that may have referred the charges, and the CO is not the official who decides discovery disputes. Demanding evidence from the CO directly invites refusal, delay, or an incomplete response, and it can put the member in the awkward position of arguing law to someone with no authority to grant the request and every incentive to deny it.
A military defense attorney changes the dynamic by invoking the actual mechanism. Counsel serves a written discovery request on trial counsel under RCM 701, framing the request in terms of materiality to the defense. Because there is a continuing duty to disclose, the request does not have to be repeated each time new evidence surfaces; the obligation persists throughout the case. If trial counsel does not produce what the rule requires, counsel does not return to the CO. Counsel files a motion to compel discovery before the military judge.
The military judge, not the CO, decides
This is the heart of why counsel matters. Disputes over access to evidence are resolved by the military judge, who under RCM 701 may specify the time, place, and manner of discovery and may impose terms and conditions that are just. The judge is the neutral arbiter with the authority to order production, to inspect disputed material privately, and to fashion remedies when the government fails to disclose what the accused is entitled to receive. Those remedies can be significant, including ordering production, excluding evidence the government tried to use while hiding related material, and in serious cases other relief the judge deems appropriate.
A self-represented member generally cannot navigate this. Framing a request so it falls within the materiality standard, knowing what categories the rule and case law require, recognizing when the government’s response is deficient, and drafting and arguing a motion to compel are tasks that depend on knowing the discovery rules and the body of military case law interpreting them. The exposure of withheld favorable evidence often turns on a precisely worded request and a well-supported motion, not on the force of a personal demand.
Favorable evidence and the duty to disclose
Beyond ordinary discovery, the government in a court-martial has an obligation to disclose evidence favorable to the accused, consistent with the constitutional duty recognized in civilian practice and reinforced by the military discovery rules. A defense attorney knows to demand this category specifically, to press it through the judge if it is not forthcoming, and to build a record that preserves the issue for appeal if the government’s failure to disclose later comes to light. Without counsel, a member may never learn that favorable material existed, let alone secure it or preserve the issue.
The practical answer
You need a military attorney precisely because the thing you are trying to do, compel access to withheld evidence, is a legal act that runs through trial counsel and the military judge, not through the commanding officer. Article 46 guarantees equal access, RCM 701 supplies the procedure, and the military judge holds the authority to enforce it. A defense lawyer turns your demand into a proper discovery request and, if necessary, a motion to compel that the judge can grant, complete with remedies when the government withholds what you are owed. Demanding evidence from your CO directly is, at best, a detour. The route that actually produces the evidence is the one a military attorney is trained to take.
Disclaimer
This article is provided strictly for general educational and informational purposes. It is intended to explain how the Uniform Code of Military Justice (UCMJ), the Rules for Courts-Martial, the Military Rules of Evidence, and related military administrative processes work as a matter of public legal education. It does not constitute legal advice, a legal opinion, or a recommendation about any particular case, and it is not a substitute for advice from a qualified military defense attorney who can evaluate the specific facts and command, service, and jurisdictional circumstances involved.
Reading this article, or contacting any website on which it appears, does not create an attorney-client relationship between the reader and any law firm, attorney, or author. Every court-martial, nonjudicial punishment action, administrative separation, and security-clearance matter turns on its own facts, the charged articles, the convening authority, the service branch, and the evidence, and outcomes vary widely from one case to another.
Military law also changes over time. The Military Justice Act of 2016 (effective January 1, 2019) and subsequent National Defense Authorization Acts renumbered and rewrote many punitive articles, revised the Article 32 preliminary hearing, and altered sentencing, clemency, and appellate procedures. Statutes, regulations, executive orders, the Manual for Courts-Martial, and decisions of the service Courts of Criminal Appeals and the Court of Appeals for the Armed Forces may have been amended, superseded, or reinterpreted after this article was written, and article numbers or procedures cited here may have changed.
For these reasons, no reader should act or decline to act based on this content without first consulting a licensed attorney experienced in military justice about their own situation. The author and publisher make no warranty, express or implied, as to the accuracy, completeness, timeliness, or current applicability of the information provided, and disclaim any liability for any action taken or not taken in reliance on it. If you are facing investigation, charges, or an adverse administrative action, time limits may apply, and you should seek qualified counsel promptly.