What Is Article 32 of the UCMJ? Hearing, Rights, and Report

Article 32 of the UCMJ is the preliminary hearing the military must hold before charges can be referred to a general court-martial, the most serious level of military trial. A neutral hearing officer reviews the evidence, decides whether probable cause exists, and recommends what should happen with the case. Many people still call it an “Article 32 investigation,” but Congress renamed it a “preliminary hearing” in 2014 and narrowed its scope from a wide fact-finding inquiry to a focused probable-cause review.

What the Hearing Decides

The statute limits the preliminary hearing officer to four questions:

Whether the charges actually describe an offense under the UCMJ.
Whether there is probable cause to believe the accused committed the offense.
Whether the convening authority has court-martial jurisdiction over the accused and the offense.
What the appropriate disposition of the case should be, including referral to a general court-martial, a lesser forum, reduction of charges, or another outcome.

The hearing officer cannot go beyond these four issues. It is not a mini-trial and not, since 2014, a broad discovery proceeding.¹

Who Runs the Hearing

The person in charge is the preliminary hearing officer, or PHO. The PHO must be impartial. Whenever practical, the role goes to a judge advocate certified under Article 27(b)(2) of the UCMJ, meaning a qualified military lawyer. A non-lawyer commissioned officer can serve only in exceptional circumstances.¹ The PHO operates independently of both prosecution and defense, and can be disqualified for prior involvement in the case or other conduct that compromises neutrality.²

How the Hearing Works

An Article 32 hearing is adversarial but not a trial. The prosecution presents its case, typically through documents, investigative reports, and witnesses. The defense can cross-examine those witnesses, present its own evidence, and argue against the charges. Both sides make their case, and the PHO evaluates the record before writing a report.

Hearings are ordinarily open to the public. The convening authority or PHO can close portions only when an overriding interest outweighs public access, no lesser measure protects that interest, and the closure is as limited as possible. Classified information and certain victim-privacy protections are the usual reasons.³ Every hearing must be recorded.¹

Evidence Rules

Most Military Rules of Evidence do not apply. That is a meaningful difference from a court-martial. The prosecution can rely on written statements, investigative reports, and other documents that would be excluded as hearsay at trial. Because probable cause is a much lower bar than proof beyond a reasonable doubt, the relaxed rules fit the purpose of the hearing.

Two categories of evidence rules still apply. Privilege rules under Section V of the Military Rules of Evidence remain in effect, including the victim advocate-victim privilege under MRE 514 with a narrow exception. In sexual offense cases, the rape shield protections of MRE 412 apply, so evidence about a victim’s prior sexual behavior is generally inadmissible except within specific exceptions, and any MRE 412 proceeding runs in a closed session.³

Disclosure Before the Hearing

Once the convening authority directs a preliminary hearing, the prosecution must give the defense the hearing order, statements from witnesses the prosecution plans to call, evidence to be presented, and any materials already provided to the convening authority. That disclosure is due within five days. Any party planning to introduce MRE 412 evidence must give written notice at least five days before the hearing begins.³

Rights of the Accused

If you are the accused, you have several protections during the Article 32 process. You must be told what charges you face and informed of your right to counsel. You can be represented by a detailed military defense attorney, a civilian lawyer you hire, or both. At the hearing, you can cross-examine prosecution witnesses, present your own evidence, and submit information relevant to the four questions the PHO must answer.¹

Cross-examination and evidence are limited to those four issues. The PHO can shut down questioning that goes beyond them, which is a real constraint compared to the pre-2014 investigation, where the scope was considerably broader.

Victims’ Rights

A victim cannot be compelled to testify at the preliminary hearing. If a victim declines, the PHO must treat them as unavailable, and that refusal alone cannot be the sole basis for ordering a deposition. Victims can also request and receive a copy of the hearing recording.¹

The statute defines a victim as someone alleged to have suffered direct physical, emotional, or financial harm from the charged conduct and who is named in one of the specifications. In sexual assault cases, MRE 412 adds further privacy protection by restricting evidence about the victim’s prior sexual behavior.

Waiving the Hearing

The accused can waive the Article 32 hearing entirely by submitting a written waiver. In practice, waiver rates have run between roughly 50 and 70 percent in recent years. Sometimes a waiver is part of a plea agreement. Sometimes it is purely strategic.

Because the PHO’s probable cause finding does not bind the convening authority, some defense attorneys see little upside in showing their evidence at a hearing that cannot actually stop the charges from moving forward. Revealing a strong witness or favorable document at the Article 32 stage gives the prosecution months to prepare a response before trial. Waiving the hearing and requesting a speedy trial can limit that opportunity. On the other hand, if the government’s case is overwhelming or the charged offense is less serious than it could have been, waiving the hearing can avoid drawing attention to facts better left alone.¹

The Report and What Happens Next

After the hearing, the PHO produces a written report that accompanies the recording. It addresses each of the four statutory questions. For every specification, the report lays out the PHO’s reasoning and conclusions, summarizes witness testimony and documentary evidence, notes observations about witness credibility, and states any recommended changes to the charges.¹ The defense has five days after receiving the report to file objections.³

The PHO can recommend referral to a general court-martial, referral to a lesser forum such as a special court-martial, reduction or dismissal of charges, or administrative action. These recommendations are advisory. The convening authority, meaning the senior commander with the power to send cases to court-martial, is not bound by anything in the report. A convening authority can refer charges to a general court-martial even when the PHO recommended dismissal.

Special Trial Counsel

For certain serious offenses, primarily sexual assault, domestic violence, and other “covered offenses,” a Special Trial Counsel now holds independent authority over the charging and referral decision. When the STC is involved, the PHO’s report goes to the STC rather than the convening authority. The STC can also waive the hearing requirement if they determine one is not needed. This is a recent addition to the military justice system, designed to move certain sensitive cases out of the chain of command’s control.¹

How It Differs From a Civilian Grand Jury

Article 32 hearings are often described as the military equivalent of a civilian grand jury, but the two work very differently. A federal grand jury is secret. No defense attorney is present, the accused does not attend, and witnesses are not cross-examined. Prosecutors run the proceeding, and the grand jury either returns an indictment or does not.³

An Article 32 hearing looks different. The defense is present with counsel, the accused can attend, witnesses face cross-examination, and the hearing is generally open to the public. The PHO can recommend more than just indictment or dismissal, including reduced charges or administrative action. The 2014 reforms narrowed the gap somewhat by cutting back the hearing’s discovery function, and in one respect the two processes end up in similar territory: neither the PHO’s recommendation nor a grand jury’s indictment binds the prosecutor who ultimately decides whether to proceed.

1
Office of the Law Revision Counsel. 10 USC 832 – Art 32 Preliminary Hearing Required Before Referral to General Court-Martial
2
United States Marine Corps Staff Judge Advocate / Naval Justice School. The Article 32 Preliminary Hearing Officer’s Guide
3
The Judge Advocate General’s Legal Center and School. 13 Article 32 Preliminary Hearing