The IT-O was an interrogation droid designed by Imperial Security Bureau and employed by the Galactic Empire. Use of the IT-O was carefully controlled by ISB, though some models found their way into the hands of senior Moffs, military intelligence and even CompForce. They were also employed by Imperial Inquisitors and Stormtrooper garrison commanders.
It was a hovering droid similar in appearance to a remote, perhaps a third of a meter in diameter, with various attachments, deliberately frightening in appearance, used in torture. The droid was generally successful in getting information from prisoners using elaborate and scientific torture methods. First, it would inject the prisoner with a mentally disabling chemical that would decrease the pain threshold, while also forcing the subject to remain conscious. IT-O would do a read on the body, detecting the most sensitive areas like the genitals, joints, neck and many other less obvious body parts. Occasionally, the prisoner's vision may be obscured. A single torture session would usually last well over an hour. The droid had onboard systems to record the entire process, in case any information was lost in the screams of the prisoner. Its reputation was so feared that many prisoners began reciting their sins as soon as they saw an IT-O floating into their cell.
In 3 ABY, the IT-0 could be sold on the black market for 200 credits along with spare parts.