No, an Article 32 preliminary hearing is emphatically not a trial. This is a critical distinction in the military justice system. A trial, or court-martial, is a formal, adjudicative proceeding to determine the guilt or innocence of an accused service member beyond a reasonable doubt. An Article 32 hearing, by contrast, is a pretrial, administrative investigation designed solely to determine if there is probable cause to proceed to a trial.
The fundamental differences are numerous. A trial is presided over by a military judge, whereas an Article 32 hearing is conducted by a Preliminary Hearing Officer (PHO). A trial results in a verdict of guilty or not guilty, and if guilty, a sentence is adjudged. An Article 32 hearing results only in a non-binding recommendation to the convening authority. The standard of proof at trial is “beyond a reasonable doubt,” while at the hearing, it is the much lower standard of “probable cause.”
Furthermore, the rules of procedure and evidence are vastly different. Trials are governed by the strict, formal Military Rules of Evidence. Article 32 hearings operate under relaxed rules where hearsay is generally admissible. The rights of the accused, while robust at the hearing, are even more extensive at trial, which is presumptively open to the public and adjudicated by a panel of court members (a jury) or a military judge alone.
Thinking of the Article 32 hearing as a “mini-trial” can be misleading. While it is adversarial, its purpose is investigative and advisory. Its function is to screen cases, not to adjudicate them. It serves as a vital due process checkpoint to ensure a service member is not subjected to a general court-martial unless the allegations have been thoroughly vetted and found to have a reasonable basis in fact.