A security platoon was a formation of 38 men attached to a battalion, regiment, or battlegroup headquarters in the Imperial Army. A security platoon was typically commanded by the staff officer responsible for the coordination of all support elements and headquarters security within the unit. They fell under the command of the unit's commanding officer in the event of an attack on the headquarters. Security platoons were considered to be support units, as they maintained order within their unit. Battlegroup headquarters typically had two security platoons.