What Is the Article 32 Preliminary Hearing and What Is Its Purpose?

When serious charges move toward a general court-martial, the military justice system runs them through a checkpoint first. That checkpoint is the Article 32 preliminary hearing, and understanding what it can and cannot do is essential to understanding how a felony-level military case actually develops. The hearing decides whether a case is built on solid enough ground to be tried, not whether the accused is guilty. Just as important is what the proceeding looks like today versus what it once was, because Congress deliberately shrank it, and a service member who expects the old version will be surprised by the one that exists now.

A screening step, not a trial

Article 32 of the Uniform Code of Military Justice (10 U.S.C. 832) requires a preliminary hearing before charges can be referred for trial by a general court-martial, which is the forum that handles the most serious offenses and carries the heaviest possible punishments. The hearing is the statutory gateway to that forum. No comparable hearing is required for a special or summary court-martial, where a less formal pretrial inquiry suffices.

The proceeding is governed by Rule for Courts-Martial 405, and its purpose is tightly defined. The hearing officer addresses four questions and only four: whether each specification alleges an offense under the UCMJ, whether there is probable cause to believe the accused committed the charged offense, whether the convening authority has court-martial jurisdiction over the accused and the offense, and what disposition of the case the officer would recommend. The standard is probable cause, meaning reasonable grounds to believe an offense occurred and that this person committed it. That is a far lighter showing than proof beyond a reasonable doubt, which is the burden the government must later carry at trial. The hearing officer is not deciding guilt; the officer is deciding whether the case clears a low threshold to proceed.

The narrowing that changed everything

The most consequential fact about Article 32 is that the version in force today is a deliberately diminished one. For decades the proceeding was a full pretrial “investigation.” The investigating officer had broad authority to examine witnesses, sift through evidence, and make wide-ranging findings, and defense counsel routinely used the hearing as a discovery tool to learn the government’s case and lock witnesses into testimony under oath.

Congress dismantled that model in the National Defense Authorization Acts for Fiscal Years 2014 and 2015. The change took effect on 26 December 2014, renaming the proceeding a “preliminary hearing” and stripping out the investigative function. Congress expressly removed discovery as a purpose of the hearing and confined the officer to the four narrow determinations above. The Military Justice Act of 2016, which took effect on 1 January 2019, later refined surrounding procedure, but the core transformation from investigation to limited preliminary hearing came from the FY2014 and FY2015 reforms, not the 2016 Act. A guide that credits the 2016 statute with the narrowing has the history backward, and the timing matters because the entire character of the proceeding shifted in 2014.

The practical consequence is what the hearing no longer delivers. Because discovery is no longer a purpose, the government controls which evidence and witnesses to present, and the officer may rely on sworn statements, affidavits, or other summaries rather than live testimony. The defense can still cross-examine witnesses the government calls and can offer relevant evidence, but the days of using Article 32 to take a free preview deposition of the prosecution’s entire case are over.

Who runs the hearing, and what the accused gets

The statute states that, whenever practicable, the hearing officer is to be a certified judge advocate, a military lawyer. Only in exceptional circumstances may a non-lawyer serve, and even then a certified judge advocate must be available to provide legal advice. This preference for a legally trained officer reflects the screening, law-bound nature of the modern proceeding.

The accused arrives with real but bounded rights. There is a right to be represented by counsel, including detailed military defense counsel at no cost and the option to retain civilian counsel. The defense may cross-examine the witnesses who actually testify and may present additional evidence relevant to the four issues, and the accused may submit written matters for the officer’s consideration. What the defense cannot do is treat the hearing like the trial itself. The ability to compel witnesses is constrained, and because the government decides what to present, much of its proof can come in on paper.

A distinct rule applies to alleged victims. A victim may not be required to testify at the preliminary hearing, and a victim who declines is deemed not available. This protection, added during the same wave of reforms, means a sexual-assault or violent-crime prosecution can proceed past Article 32 without the complaining witness ever taking the stand at this stage.

A recommendation, not a verdict

When the hearing closes, the officer prepares a written report setting out the reasoning and conclusions on each of the four determinations, along with a recommended disposition. That report is advisory. It goes to the convening authority, the commander with the power to refer charges, who is not bound by it. The convening authority may refer the charges even if the officer found no probable cause or recommended against referral, and may also dismiss or modify charges regardless of what the report says.

The report does not travel alone. Under Article 34 of the UCMJ, the staff judge advocate must give the convening authority written pretrial advice before any referral to a general court-martial. Current law requires that advice to confirm that each specification alleges an offense, that there is probable cause to believe the accused committed it, and that a court-martial would have jurisdiction over the accused and the offense. Only after that advice may the convening authority refer the case for trial.

How it compares to a grand jury

Civilian observers often analogize Article 32 to a grand jury, and the comparison illuminates as much by its differences as its similarities. A federal grand jury meets in secret, the accused is neither present nor represented, and the prosecutor runs the room without an adversary. The grand jury’s product is an indictment that formally binds the case over for trial.

The Article 32 hearing inverts much of this. It is generally open, the accused attends with counsel, and the defense participates by cross-examining government witnesses and presenting evidence. Yet the output is weaker than an indictment: the hearing officer recommends rather than charges, and nothing the officer concludes constrains the convening authority. So the accused gets more visibility and a voice than a grand jury target ever would, but the proceeding lacks the grand jury’s power to halt a prosecution on its own. The screening function is real, but the gate it guards can be opened by the convening authority over the officer’s objection.

Waiver, classified cases, and the record

The hearing can be waived. The accused may waive it in writing, and if the convening authority agrees a hearing is not required, charges can be referred without one; any such waiver must be knowing and voluntary. When classified information is in play, the procedure can be adjusted to protect national security, including closing portions of the hearing, requiring clearances for participants, or substituting approved summaries for sensitive material, balanced against the accused’s interest in a meaningful hearing.

Even when the officer recommends against referral and the convening authority proceeds anyway, the recommendation is not wasted. It becomes part of the record and can surface later, for instance if the defense argues on appeal that the referral or some related decision lacked support. In a system where the hearing officer cannot stop a case, the durable value of Article 32 is often this documentary one: a contemporaneous, reasoned assessment of probable cause that lives in the file and can be pointed to long after the hearing ends.

Sources

• 10 U.S.C. 832 (Article 32, UCMJ), https://www.law.cornell.edu/uscode/text/10/832
• Manual for Courts-Martial, Rule for Courts-Martial 405 (preliminary hearing); Article 34, UCMJ (10 U.S.C. 834, pretrial advice), https://uscode.house.gov/view.xhtml?req=(title:10+section:834+edition:prelim)
• National Defense Authorization Acts for Fiscal Years 2014 and 2015 (Article 32 amendments, effective 26 December 2014); Military Justice Act of 2016 (effective 1 January 2019), https://uscode.house.gov/view.xhtml?req=(title:10+section:832+edition:prelim)

Disclaimer

This article is for general informational purposes only and is not legal advice. It describes military law and procedure of public record, does not address any individual case, and does not create an attorney-client relationship.