Heresy

In the Warhammer 40000 universe, the act of Heresy is religious opinion, act or doctrine going against the Imperial creed. Heresy is often not merely an unconventional religious viewpoint, but the act of worshiping the forces of Chaos. No person is beyond suspicion, not even the great Space Marines. Acts of heresy are catagorized in grades (1st, 2nd, 3rd, etc) which differ based on the severity of the act. Punishments range from imprisonment, assignment to a penal legion, excommunication, execution, and archo-flagellation, just to name a few.

Acts of Heresy include:

- Worshiping other gods, especially the Chaos gods. This does not include the machine god who is worshiped by the Adeptus Mechanicus. - Conducting witchcraft - Treason - Usurping power. See Horus Heresy and Plague of Unbelief - Using alien technology. However, the Adeptus Mechanicus may confiscate alien technology for research purposes)