The Warden Droid was a type of security droid that was specialized for patrolling Imperial detention centers. They were programmed to capture escaping prisoners and to put down riots through nonlethal means, so that punishment could meted out to the prisoners by flesh-and-blood guards. They were tall and angular, with a thin body and long, spindly arms that were fitted with stun claws. Some were used in an Imperial prison on Felucia.