The Article 32 preliminary hearing is a required step before serious charges can be referred to a general court-martial under the Uniform Code of Military Justice. Because it is the first formal proceeding where evidence is presented and witnesses may be examined, service members and their families often assume it operates like a trial, with the full set of evidentiary rules controlling what the hearing officer may consider. That assumption is largely incorrect. The Military Rules of Evidence do not apply to an Article 32 hearing in the way they apply at a court-martial, and that difference fundamentally shapes how these hearings work.
The General Rule: Most Evidence Rules Do Not Apply
As a general matter, the Military Rules of Evidence do not govern an Article 32 preliminary hearing. The hearing is an investigative and screening proceeding focused on probable cause, not a trial that resolves guilt. Because of that limited purpose, the technical evidentiary rules that filter what a court-martial panel may hear are relaxed. The hearing officer may consider evidence that would be inadmissible at trial, and the proceeding is not designed to be a dress rehearsal in which every exhibit and statement must clear the bars that apply at a general court-martial.
This relaxed approach is most visible in the treatment of hearsay. At trial, hearsay is generally inadmissible unless an exception applies. At an Article 32 hearing, the government may meet its burden by submitting written statements, investigative reports, forensic results, and other documents, even though those materials would be hearsay at trial. The prosecution may rely on paper rather than live testimony to establish probable cause. This is one of the most significant consequences of the rules not applying, and it reflects the proceeding’s purpose of testing whether there is enough to proceed, not proving the case beyond a reasonable doubt.
The Important Exceptions
Although most of the evidence rules are set aside, a limited group still applies at an Article 32 hearing. These carve-outs reflect interests that Congress and the rules treat as too important to suspend even in a preliminary proceeding. The rules of privilege apply, so privileged communications, such as those protected by the attorney-client privilege or other recognized privileges, retain their protection at the hearing. Rules governing the admissibility of statements obtained through interrogation also apply, preserving protections related to how an accused’s statements were obtained. And the rape-shield protections under Military Rule of Evidence 412, which restrict evidence of an alleged victim’s other sexual behavior or predisposition, apply at the hearing as well. These exceptions mean that even in a relaxed evidentiary environment, certain categories of evidence remain protected or restricted.
Why the Rules Were Relaxed
The current framework is the product of reforms that took effect in late 2014, which transformed the Article 32 proceeding from a thorough investigation into a narrower preliminary hearing. A major motivation for the change was concern about the treatment of complaining witnesses, particularly in sexual assault cases, who under the prior system could be subjected to extensive examination at the investigation stage. By converting the proceeding into a probable-cause hearing where the government can proceed on documents and where the rape-shield rule applies, the reforms reduced the burden on alleged victims and reoriented the hearing toward its screening function. The practical effect was to make the hearing more paper-driven and less like a full evidentiary contest.
What This Means in Practice
The relaxed evidence rules cut in more than one direction. For the government, the ability to rely on written statements and reports makes it easier to establish probable cause without producing every witness in person. A complaining witness is not required to testify, and the prosecution can build its showing on documentary materials. For the defense, this changes strategy considerably. Counsel cannot count on cross-examining every accuser or witness, because many may never appear, and counsel cannot rely on technical evidentiary objections to keep material out, since most of those objections do not apply. The defense still has the right to cross-examine witnesses who do testify, to present evidence relevant to the limited issues before the hearing officer, and to invoke the privileges, interrogation rules, and rape-shield protections that remain in force.
Because the hearing officer can consider evidence that would never reach a trial panel, the defense often uses the hearing to learn about the government’s case, to test the credibility of any witnesses who do appear, and to identify weaknesses, rather than to win on evidentiary technicalities. The probable cause standard is low, and the relaxed rules make it lower still in practice, so the defense calibrates expectations accordingly.
A Caution About Confusing Stages
It is important not to conflate the Article 32 hearing with the court-martial that may follow. The fact that the hearing officer considered hearsay or other relaxed evidence says nothing about whether that same evidence will be admissible at trial. At a court-martial, the full Military Rules of Evidence apply, and the government must satisfy authentication, hearsay, and other requirements to admit each piece of evidence. Evidence that helped establish probable cause at the Article 32 hearing must still independently qualify for admission at trial. The relaxed standard belongs to the preliminary stage alone.
The Bottom Line
Article 32 hearings are not governed by the formal rules of evidence in the way a court-martial is. As a general rule, the Military Rules of Evidence do not apply, which allows the hearing officer to consider hearsay and other materials that would be inadmissible at trial, including written statements and reports. A narrow set of protections survives: the rules of privilege, the rules concerning statements obtained through interrogation, and the rape-shield rule under Military Rule of Evidence 412. This relaxed framework, shaped by the 2014 reforms, reflects the hearing’s role as a probable-cause screening proceeding rather than a trial, and it reshapes strategy for both the government and the defense while leaving the full evidentiary rules to apply later at the court-martial itself.
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.