Not every inquiry in the military is a formal criminal investigation run by trained agents. Far more common are unit-level inquiries: a first sergeant asking what happened, a commander directing an officer to look into an incident, a noncommissioned officer questioning a junior troop about missing equipment, or an administrative investigation under service regulations. Service members frequently assume that Article 31 of the Uniform Code of Military Justice only applies when the Office of Special Investigations or the Criminal Investigation Division knocks on the door. That assumption can be costly. Article 31 protections can absolutely apply during unit-level questioning, but whether they do in a particular conversation depends on a specific legal test. This article explains when the protection attaches at the unit level and when it may not.
Article 31 Is Not Limited to Law Enforcement
Article 31, at 10 U.S.C. 831, requires that before a suspect or accused is questioned, the questioner advise the person of the nature of the accusation, that the person need not make a statement, and that any statement may be used against him at a court-martial. Critically, the statute speaks of any person subject to the code who interrogates or requests a statement. It is not limited to police or investigators. A commander, a first sergeant, or a supervising noncommissioned officer is subject to the code and can therefore trigger the warning requirement.
The protection also does not depend on custody. Unlike the civilian Miranda rule, which is keyed to custodial interrogation, Article 31(b) can apply to questioning in an ordinary duty setting, including the orderly room or the workplace, when the conditions for it are met.
The Two-Part Test for Unit-Level Questioning
Courts do not require a warning for every casual question a leader asks. The Court of Appeals for the Armed Forces has framed the issue around whether the questioner was acting in an official law enforcement or disciplinary capacity and whether the suspect perceived the questioning as official. The relevant decisions include United States v. Cohen, 63 M.J. 45 (C.A.A.F. 2006), and United States v. Jones, 73 M.J. 357 (C.A.A.F. 2014).
Two elements drive the analysis. The first looks at the questioner’s role. The court examines the totality of the circumstances to decide whether the person asking was acting, or could reasonably be seen as acting, in a law enforcement or disciplinary capacity rather than for some unrelated administrative or …