Grand Provost Marshal
The Grand Provost Marshal is the commander of the Adeptus Arbites, the Imperium's galaxy-spanning law enforcement apparatus. A permanent member of the High Lords of Terra, the Grand Provost Marshal represents the Emperor's Law to the rest of the High Lords and is a key source of legal advice. However he is concerned primarily with political matters on Terra and leaves most Arbites operations to his subordinates.
Known Grand Provost Marshals
- Harr Rantal - Grand Provost Marshal during the Horus Heresy
- Vernor Zeck - Grand Provost Marshal during the War of the Beast
- Galatea Haas (nominally Lady Speaker for Grand Provost Martial Zeck)
- Aveliza Drachmar - Grand Provost Marshal during the Thirteenth Black Crusade