Service members facing a court-martial sometimes discover that the command has also begun, or is threatening to begin, an administrative separation based on the same conduct. That can feel like being attacked from two directions at once. The question is whether the command may pursue an administrative separation while the court-martial is still pending. The general answer is that the two systems are distinct, an administrative separation is not a criminal prosecution, and there is no blanket rule that forbids running them at the same time. There are, however, important practical and regulatory constraints, and one firm limit tied to acquittal.
Two different systems with two different purposes
A court-martial is a criminal proceeding. It can impose punishment, including confinement and a punitive discharge, and the government must prove guilt beyond a reasonable doubt. An administrative separation is not punishment in the legal sense. It is a personnel action used to remove a member from service, typically decided under a preponderance of the evidence standard, meaning the misconduct is more likely than not to have occurred. The characterization of service that can result, such as an other than honorable discharge, carries serious consequences, but the separation itself is administrative rather than penal.
Because the two systems serve different purposes and apply different burdens of proof, they are not mutually exclusive. The governing Department of Defense instruction on enlisted administrative separations and the service specific regulations, such as the Army’s separations regulation and its counterparts in the other branches, lay out when and how administrative separations proceed. Nothing in that structure makes a pending court-martial an automatic bar to administrative processing.
Why a command might run both, or choose one over the other
Administrative separation is often used as an alternative to court-martial, particularly when the government doubts it can prove a case beyond a reasonable doubt but believes the lower administrative standard can be met. In other situations the command may have a genuine charging case yet also want the option of separation if the prosecution does not result in a discharge.
It is common for a command, or its legal advisors, to sequence the two actions rather than run them in full parallel. The reason is practical. Statements a member makes in the administrative process can have consequences in the criminal case, and discovery and timing concerns cut both ways. Many commands will hold the separation in abeyance until …