Abstract: An explosives detection system for an aircraft to deter terrorist activity in which a plurality of explosives detectors are located about the interior passenger compartment of the aircraft in order to detect the presence of explosives. The explosives detectors generate an electronic signal upon sensing explosives and are periodically sampled so that an appropriate alarm signal may be generated upon the detection of explosives. The alarm signal causes a pair of cameras to be directed towards the vicinity in which explosives were detected and may also automatically shut down the aircraft.