Describe what happened when people entered the camps.
(holocaust question)

Prisoners would often then be registered, and given a prisoner number. From this point onwards, they would typically only be referred to by this number rather than their name. At Auschwitz, this number would be tattooed onto their arms. At most other camps, it was stitched onto their clothing. Prisoners were also usually assigned to a barrack and work detail at this stage.