(a) The adjutant general, 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 unit, organization, element, activity or installation, may convene a summary court-martial consisting of one commissioned officer. The proceedings shall be informal.

(b) When only one commissioned officer is present with a command or detachment he or she shall be the summary court-martial of that command or detachment and shall hear and determine all summary court-martial cases brought before him or her. Summary courts-martial may, however, be convened in any case by superior authority when considered desirable by him or her.