The droid was a black hovering sphere, 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. The droid had on board 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.
The droid was designed with an emotionless personality to ask questions in flat monotone. When working with a living assistant the IT-O would often say nothing at all, thus making the prisoner fear and hate the droid, while viewing the living interrogator as a source of potential mercy.
Interrogating Kanan Jarrus
One of these Droids were used to interrogate Kanan Jarrus not just to get information out of him, but also determine if he had all the wills and resistance of a Jedi. The droid even subjected Kanan with mind probes to get information out of him but this proved to be unsuccessful as the Jedi were able to resist mind prodes.
- "Rebel Resolve" (First appearance)
- The droid originally made its debut appearance in the first Star Wars film, Star Wars Episode IV: A New Hope.