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"Fit him with a restraining bolt and take him back to His Excellency's main audience chamber."
EV-9D9, regarding C-3PO[src]

Restraining bolts were small, cylindrical devices that could be affixed to a droid in order to limit its functions and enforce its obedience.[2] When inserted, a restraining bolt restricted the droid from any movement its master did not desire, and also forced it to respond to signals produced by a hand-held control unit.[3] Some droids felt sheer horror at the mere mention of restraining bolts.[4] Restraining bolts were also used in the construction of Jawa ion blasters; they, along with accu-accelerators from a starship's ion engine, were fitted to the blaster's firing mechanism.[5]

Droids could not remove restraining bolts from themselves or other droids.[6]

Sabine Wren would sometimes threaten Chopper with a restraining bolt when he was uncooperative.[7]


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