This is a picture documentary of Tuol Sleng Genocide Museum, where many Cambodians were 'exterminated' during the Pol Pot regime. The building and fittings, including residual blood-stains within, have been preserved intact as evidence against the regime. The images that you see here depict the exact conditions that prevailed. Visiting this museum is a humbling and sobering event. The first 2 images are instructional.
See also...
War Museum: https://pbase.com/gbc/war_museum
Killing Fields: https://pbase.com/gbc/killing_fields