The preliminary hearing officer, often called the PHO, presides over the Article 32 preliminary hearing that must occur before charges can be referred to a general court-martial. A common question is how active the PHO may be, and in particular whether the officer can question witnesses directly rather than simply listening to the questions posed by trial counsel and defense counsel. The PHO does have authority to question witnesses, but that authority is bounded by the limited purpose of the hearing and by the duty to stay neutral.
The PHO Operates Within a Limited Hearing
Rule for Courts-Martial 405 governs the Article 32 preliminary hearing as it exists after the amendments that took effect on January 1, 2019. The hearing has a narrow function. It determines whether the specification alleges an offense, whether there is probable cause to believe the accused committed the offense, whether the convening authority has court-martial jurisdiction, and what disposition the PHO recommends. Congress removed discovery as a purpose of the hearing, so the proceeding is not a broad fact-finding investigation. Everything the PHO does, including any questioning, must serve those limited determinations.
Consistent with that scope, the PHO is directed to consider only testimony relevant to the issues for determination. If evidence offered by either party falls outside the scope of the hearing, the PHO must inform the parties and halt that presentation. That gatekeeping role is part of why the officer holds questioning authority. To police relevance and to reach a probable cause judgment, the officer must be able to engage with the testimony.
Source of the PHO’s Authority Over Witnesses
The PHO exercises authority that, in the courtroom, would belong to the military judge. When the evidentiary rules are applied at the preliminary hearing, the term military judge means the PHO. That substitution gives the officer the authority a judge would have to manage witnesses and to exclude evidence following the procedures in the applicable evidentiary rules.
Witnesses at the hearing, with the exception of the accused, testify under oath. Because the PHO administers and presides over sworn testimony and must determine its relevance, the officer can put questions to a witness to clarify testimony, to resolve ambiguity, or to develop a point that bears on probable cause, jurisdiction, or the legal sufficiency of the charges. This is independent of the questioning conducted by the parties, in the sense that the officer is not limited to the questions counsel choose to ask.
The Neutrality Constraint
The most important limit on this authority is the requirement of impartiality. The rule explicitly directs that the preliminary hearing officer shall not depart from an impartial role and become an advocate for either side. This is the boundary that separates legitimate clarifying questions from improper advocacy.
In practice, the line is drawn around purpose and tone. The PHO may ask questions to understand the evidence and to make the required determinations. The PHO may not use questioning to build the government’s case, to rehabilitate a faltering witness in a way that crosses into advocacy, or to attack the defense. If the officer begins functioning as a second prosecutor or as defense counsel, the questioning has exceeded the officer’s role. The neutrality command is not a technicality. It protects the integrity of the probable cause recommendation and gives the parties a basis to object if the officer strays.
Practical Implications for the Parties
For the defense, the PHO’s independent questioning can cut in more than one direction. Clarifying questions from a neutral officer can expose weaknesses in the government’s evidence, but they can also fill gaps that counsel might have preferred to leave open. Defense counsel should be prepared to object if the officer’s questions begin to advocate for the government or to stray beyond the hearing’s limited scope, and to make a clear record when that happens.
For the government, the PHO’s questioning is not a substitute for meeting the probable cause showing. The officer’s role is to evaluate the evidence the parties present, not to manufacture a case. Trial counsel should not rely on the PHO to develop testimony that the government has failed to elicit.
Summary
The PHO has genuine authority to question witnesses independently, drawing on the authority a military judge would hold over witnesses and evidence at the preliminary hearing. That authority exists to serve the hearing’s limited determinations of probable cause, jurisdiction, charging sufficiency, and disposition, and to enforce relevance. It is firmly constrained by the requirement that the officer remain neutral and never become an advocate for either party. Within those limits, the PHO may ask its own questions. Beyond them, the questioning becomes improper and gives the affected party grounds to object.
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.