The preliminary hearing officer, or PHO, plays a defined role in a general court-martial. Under Article 32 of the Uniform Code of Military Justice (UCMJ) and Rule for Courts-Martial (RCM) 405, the PHO presides over the preliminary hearing, considers the evidence the parties present, and submits a written report with findings and recommendations to the convening authority. A question that sometimes arises is whether that same officer later takes the witness stand at the court-martial to testify about the hearing or the contents of the report. As a general matter, the PHO does not become a trial witness who narrates the report, and there are good structural reasons for that.
The PHO’s job ends with the report
The Article 32 preliminary hearing is a pretrial proceeding with a limited purpose. RCM 405 directs the PHO to determine whether there is probable cause to believe an offense was committed and that the accused committed it, to consider whether the convening authority has court-martial jurisdiction, to consider the form of the charges, and to recommend a disposition. The PHO must remain impartial and may not become an advocate for either side. The product of all this is the report, which summarizes the relevant testimony and documentary evidence and sets out the officer’s reasoning, conclusions, and recommendations for each specification.
Once that report is delivered, the PHO’s function is essentially complete. The convening authority, advised by the staff judge advocate, decides how to dispose of the charges. Nothing in the design of the process contemplates the PHO returning later to testify about how the hearing went or what the report means.
Why the PHO is not a trial witness about the report
Several principles explain why the PHO does not ordinarily testify based on the report at the court-martial.
First, the report is not evidence of guilt. The preliminary hearing tests probable cause and advises the disposition decision. It does not establish the elements of an offense for the panel. The court-martial is a separate proceeding in which guilt is decided on evidence presented anew, under the Military Rules of Evidence, before the members or the military judge. The PHO’s probable-cause conclusion has no place in that determination, so there is nothing for the PHO to relate to the factfinder.
Second, allowing the PHO to testify about the report would invite hearsay and improper opinion. The report summarizes what others said and offers …