Tuol Sleng Genocide Museum - Prison Staff

The interrogation unit was split into three separate groups: Krom Noyobai or the political unit, Krom Kdao or the hot unit and Krom Angkiem, or the chewing unit. The hot unit (sometimes called the cruel unit) was allowed to use torture. In contrast, the cold unit (sometimes called the gentle unit) was prohibited from using torture to obtain confessions. If they could not make prisoners confess, they would transfer them to the hot unit. The chewing unit dealt with tough and important cases. Those who worked as interrogators were literate and usually in their 20s.

Parrott gun: A rifled artillery piece with a reinforcing band at the rear, or breech. Parrott guns were used by both the Army and the Navy, and ranged from 10-pounders to 300-pounders. They were named after their designer, Robert Parker Parrott.

Theater: A theater of war is a region or area where fighting takes place.

Sentry: (pronounced SEHN-tree) A soldier standing guard.

Redoubt: (pronounced rih-dowt) An enclosed field work - without redans - which had several sides and was used to protect a garrison from attacks from several directions. While redoubts could be very useful, one key weakness was that each protruding angle was a salient. This meant that the redoubt would be susceptible to enfilading fire. A redoubt could also extend from a permanent fortress.

Carbine: A breech-loading, single-shot, rifle-barreled gun primarily used by cavalry troops. A carbine's barrel is several inches shorter than a regular rifle-musket.