(a) In the state military forces not in federal service, the commanding officer of a garrison, fort, post, camp, air base, auxiliary air base, or other place where troops are on duty, or of a brigade, regiment, wing, group, detached battalion, separate squadron, or other detached command, may convene special courts-martial. Special courts-martial may also be convened by superior authority. If any such officer is an accuser, the court shall be convened by superior competent authority.
(b) No special court-martial shall try a commissioned officer.