The Imperial Police Droid was a model of police droid that was visually similar to the BX-series droid commandos used by the Confederacy of Independent Systems during the Clone Wars, and was utilized in the time after the formation of the Galactic Empire. The droids were used on the planet Corellia at a decommissioning facility that dismantled Separatist battle droids. At the facility, the droids patrolled on rotating quadrant scans.
When two groups—the former clone commandos of Clone Force 99 and the Martez sisters—infiltrated the facility to retrieve the head of a decommissioned T-series tactical droid in order to acquire its valuable intelligence, a brief struggle between the two resulted in the facility being placed into lockdown. The police droids converged on the intruders, who eventually utilized the tactical droid to reactivate the battle droids. As the battle droids began to destroy the police droids, the clone troopers and the Martez sisters escaped.