Court-martial jurisdiction rests on two requirements that must both be present. The first is personal jurisdiction, meaning the accused holds a military status that subjects them to the Uniform Code of Military Justice. The second is subject-matter jurisdiction, meaning the conduct alleged is an offense punishable under the UCMJ. If either is missing, a court-martial cannot proceed. Jurisdiction generally attaches when a person enters military service and ordinarily ends at a valid discharge, but two common assumptions about when it ends are wrong, and they matter.
The status-plus-offense test #
The test is about who the accused is and what they are charged with, not where or when the conduct happened.
- Personal (status) jurisdiction: the accused must be a person subject to the UCMJ, primarily active-duty service members, but the category reaches further in defined situations.
- Subject-matter jurisdiction: the conduct must be chargeable as a UCMJ offense.
A frequent misconception is that only on-base or on-duty conduct can be tried by court-martial. That has not been the rule since Solorio v. United States (1987), in which the Supreme Court eliminated the earlier “service-connection” requirement and held that jurisdiction turns on the accused’s military status, not on any link between the offense and military service. Under Solorio, off-base, off-duty conduct that violates the UCMJ can be tried by court-martial so long as the accused holds the requisite status.
When jurisdiction attaches and when it ends #
Jurisdiction attaches on a valid entry into service and continues throughout it. It ordinarily terminates upon a valid discharge. Courts look at concrete markers to decide whether a discharge has actually been finalized for jurisdictional purposes:
- Delivery of a valid discharge certificate (the DD Form 214).
- A final accounting of pay.
- Completion of the clearing process required under the service’s regulations.
Until those steps are complete, the discharge may not have severed jurisdiction.
Why a discharge does not always end it #
The assumption that simply leaving the service erases all exposure is the second common error. There are notable exceptions in which jurisdiction survives or reattaches:
- Offenses committed during service. A discharge does not automatically immunize conduct that occurred while the person was subject to the UCMJ; jurisdiction can persist over those offenses in defined circumstances.
- A fraudulent discharge. A discharge obtained by fraud does not validly terminate jurisdiction, because it was not a valid discharge in the first place.
- Certain retirees and reserve-component members. Some members who have left active duty remain subject to the UCMJ depending on their component and pay status. Under Article 2, for example, retired members of a regular component who are entitled to pay can remain within court-martial jurisdiction.
Whether a particular retiree or reservist remains subject to the UCMJ depends on their specific status and duty category, and that situation is addressed in detail separately.
A short example shows how the timing point cuts. Suppose a service member commits an offense in month ten of an enlistment and is then validly discharged in month twelve, with the certificate delivered, pay finalized, and the clearing process complete. The completed discharge ordinarily ends jurisdiction going forward, but it does not retroactively place the in-service conduct beyond reach in every case, and a discharge later found to have been obtained by fraud would not have ended jurisdiction at all. The lesson is that the date of the alleged conduct relative to a valid separation, not just the fact of separation, often determines whether the UCMJ still applies.
The accurate frame combines both halves of the question. Jurisdiction exists where there is military status plus a UCMJ offense, with Solorio removing any service-connection requirement, and a valid discharge usually ends it but not in every case. Because the answer turns on the precise status and the timing of the alleged conduct, anyone facing a court-martial should consult a qualified military defense attorney about their situation.