Mo. Rev. Stat. § 40.088: Convening summary courts-martial, persons authorized.

1. In the state military forces any person authorized to convene a general or special court-martial, the commanding officer of a garrison, fort, post, camp, station, air base, auxiliary air base, or other place where troops are on duty, or of a brigade, regiment, wing, group, separate battalion, separate squadron, or other detached command, may convene a summary court-martial.

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