Tuol Sleng Genocide Museum (S21)
Prior to the Khmer Rouge take-over of Cambodia, Toul Sleng was the Toul Svay Prey High School. In 1975 the school was occupied by Pol Pot’s security forces and turned into one of a number of nationwide detention and interrogation centers. Its innocuous setting, in a quiet suburb of the capital, was matched by an innocuous reference number: Security Prison 21 (S-21 for short). It soon became the largest center of incarceration and torture in the country. Most of the 17,000 detainees, including a handful of westerners, were subsequently taken to the Choeung Ek ‘killing field’ and executed. Incredibly, the regime kept accounts of all interrogations and confessions and these incriminating files were discovered following the Vietnamese invasion in 1979. The files have since been the subject of detailed, historical research and have provided a unique perspective on the paranoia and mistrust that infected the Khmer Rouge regime from top to bottom.


