(a) This article shall be applicable in all places within the state. It shall also apply to all persons subject to this article while serving outside the state and while going to and returning from service outside the state and in like manner and to the same extent as while the persons are serving within the state.

(b) Courts-martial and courts of inquiry may be convened and held in units of the organized militia while serving outside the state with the same jurisdiction and powers as if held within the state, and offenses committed outside the state may be tried and punished either outside the state or within the state.