Yes, evidence obtained from a command-led search without probable cause can be suppressed at a court-martial under Military Rule of Evidence (MRE) 311. While military commanders have broader search authority than civilian law enforcement, they must still have probable cause to authorize searches in most circumstances. Exceptions include inspections, inventories, and searches incident to apprehension. If a search violates MRE 311 or constitutional protections, defense counsel can file a motion to suppress the evidence.
The military judge will evaluate whether the search was lawful by examining if the commander had probable cause, whether any exceptions applied, and if the search scope was reasonable. Unlike civilian courts, military judges also consider whether exclusion serves the purposes of the exclusionary rule in the military context, including deterring future violations and maintaining disciplinary standards.
If the judge finds the search violated the accused’s rights, the evidence will typically be excluded from trial. However, the prosecution may still use the evidence for impeachment purposes if the accused testifies inconsistently. The burden is on the prosecution to prove by a preponderance of the evidence that the search was lawful once the defense raises the issue.