Nickname: Zeph ("to watch"). The Adeptus Arbites are the final bulwark against heretical uprisings and other major threats. Their precinct-fortress is often the last bastion of Imperial rule during revolutions or invasions. Each Arbitrator knows that should they fall, so follows the planet. To merely survive in such a hostile environment, Arbitrators must show no hesitation, regret, or compassion for those they protect, and they must consider every citizen guilty until they are proven innocent.