IG-88B hid two of these scanners aboard Boba Fett's starship, Slave I. IG-88C and IG-88D tracked the ship to Tatooine and sought to steal the carbonite-encased Han Solo, but Fett outsmarted the assassin droids and claimed Jabba the Hutt's bounty on Solo.
- The Essential Guide to Weapons and Technology
- The Official Star Wars Fact File85