Knowra S-21 S-21 S-21 was a Khmer Rouge prison and interrogation center in Phnom Penh, also known as Tuol Sleng. Thousands of detainees were tortured there before being sent for execution, chiefly at Choeung Ek.
Tuol Sleng Genocide Museum : A museum and memorial housed in the former S-21 prison in Phnom Penh. The preserved prison buildings and records document S-21’s operation.
Cambodian genocide : The mass killing, forced labor, starvation, and persecution carried out under Khmer Rouge rule in Cambodia from 1975 to 1979. S-21 operated within the wider campaign of persecution and mass death.
Kang Kek Iew : A Khmer Rouge official, known as Duch, who directed the S-21 prison and interrogation center. As S-21’s chief, Duch supervised its staff, interrogations, and records.
S-21 prisoner photographs : Photographic portraits made of people detained at S-21, many preserved in the prison archive. The portraits expose the individual identities behind the prison’s intake records.
Genocide documentation : The collection and analysis of evidence about genocide, including records, testimony, photographs, and burial sites. S-21’s extensive archive became evidence of Khmer Rouge crimes.
Choeung Ek : A killing site near Phnom Penh where the Khmer Rouge executed many prisoners from S-21. Many detainees were transferred from S-21 to this execution site.
Khmer Rouge : A Cambodian communist movement that ruled Democratic Kampuchea from 1975 to 1979. The movement created S-21 as part of its security apparatus.
Vann Nath : A Cambodian painter and survivor of S-21 whose paintings depicted imprisonment and torture. His survival and testimony provide a rare first-person account of the prison.
S-21 prison records : Documents created by S-21 staff, including prisoner lists, biographies, and interrogation materials. The archive records how the institution classified and processed detainees.
Cambodian genocide denial : The rejection or minimization of the Khmer Rouge’s mass crimes in Cambodia. S-21’s records and survivor accounts counter claims that the crimes were fabricated.
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