former university building is also the headquarters of fundy and ts unit. and the two bomb disposal experts have already disarmed all kinds of booby traps. throughout this is a type of mine that is quite typical for benghazi. we call it a dogma. this is the release mechanism. that the mine is placed flat on the ground and the release is connected to an electrical detonator. well if we consider that when you apply pressure to the release it closes a circuit. which then detonates the mine. i ll give. you some of the mines go off when you lift the cover of the release mechanism you lift the cover and it explodes. there are mechanical and electrical releases