The Acamarian Internal Security was a police force on the planet Acamar III. This agency was responsible for maintaining peace and order on the planet. In 2313, the AIS apprehended Penthor-Mul in Felker City. At the time, Mul, the leader of a Gatherer band, was leading an assault against the weapons supply depot at outpost Tezber. After the arrest, the AIS handed Mul over to the judicial authority, who charged him with acts of terrorism, incitement to riot, and engaging in a blood feud.