A police officer has been jailed for six months after he was caught on CCTV throwing a woman into a cell, badly injuring her.
The footage also shows Sgt Mark Andrews dragging Pamela Somerville, 59, through Melksham police station in Wiltshire.
Andrews, 37, was convicted of causing her actual bodily harm. He has been suspended from duty and will face a police misconduct hearing.
Patrick Geenty, from Wiltshire Police, said he was "a disgrace" to the force.
Ms Somerville was arrested in July 2008 after being found asleep in her car.
