In Retrospect: Qincheng, A Twentieth Century Bastille, by Wei Jinsheng (March 1979)

The Chinese dissident Wei Jinsheng spent years in Qincheng Prison outside Beijing. "Qincheng is strictly isolated from the outside world. Only former prisoners, their families, and close friends know about it. The prison is administered by the Fifth Section of the Ministry of Public Security, whose members are solely responsible for it. Regular policemen do not know the nature of Qincheng.