A Quesnel RCMP officer has been charged with assaulting a handcuffed prisoner at the local detachment on July 20th.

Investigators say another member was a witness when constable Tim Wang slapped the prisoner in the face.

Wang, who's been with the RCMP for 12 years, has not been suspended, but he is being investigated by internal affairs.

His next court appearance is set for December 8th in Quesnel.