When the government seizes evidence from a service member’s family housing on the basis of command authority, the seizure is governed by Fourth Amendment principles as they are applied in the military through the Military Rules of Evidence. A commander cannot simply order a search of a family home on a hunch. The process that legitimizes a command-authorized search closely tracks the requirements that protect any citizen against unreasonable searches and seizures, adapted to the military setting. Whether the evidence can later be used against the member depends on whether that process was followed.
Residents of military housing keep Fourth Amendment protection
A common misconception is that living in government quarters means giving up privacy. That is not the law. Service members and their families who reside in government housing retain a reasonable expectation of privacy in their home and remain protected against unreasonable searches and seizures. The home does not become a free-search zone simply because it sits on a military installation. What changes is the mechanism by which a lawful search of that home is authorized.
Command authorization stands in for a civilian warrant
In the civilian world, a neutral magistrate issues a warrant on probable cause. In the military, the Military Rules of Evidence allow a comparable function to be performed by a commander through a search authorization. Military Rule of Evidence 315 governs searches conducted upon probable cause. A search authorization is express permission, written or oral, issued by competent military authority to search a person or an area for specified property or evidence and to seize it.
The authority to issue such an authorization is given to a commander or other designated official who has control over the place to be searched, or control over the persons subject to military law when the place is not under military control. For on-installation family housing under military control, the installation commander or another properly designated official ordinarily holds that authority.
Probable cause and a neutral decisionmaker
The core due process requirements are two. First, the authorization must be based on probable cause. Probable cause to search exists when there is a reasonable belief that the person, property, or evidence sought is located in the place to be searched. The official deciding whether to authorize the search must have a substantial basis for that belief, drawn from reliable information rather than mere suspicion.
Second, the official who authorizes …