UCMJ Jurisdiction Over Reserve Component Members
Members of reserve components are subject to the Uniform Code of Military Justice (UCMJ), but only when actually performing reserve duty.
For example, UCMJ Article 2(a)(3) limits jurisdiction to:
Members of a reserve component while on inactive-duty training, but in the case of members of the Army National Guard of the United States or the Air National Guard of the United States only when in Federal service.
Notably absent is the time between periods of inactive-duty training. Such training typically occurs in four-hour blocks, with breaks during lunch and overnight that create jurisdictional gaps.
But Congress eliminated those jurisdictional gaps in the Military Justice Act of 2016, amending Article 2(a)(3) to specifically include:
(i) Travel to and from the inactive-duty training site of the member, pursuant to orders or regulations.
(ii) Intervals between consecutive periods of inactive-duty training on the same day, pursuant to orders or regulations.
(iii) Intervals between inactive-duty training on consecutive days, pursuant to orders or regulations.