A Kapo was a prisoner who worked inside the Concentration Camps. The operation and running of concentration camps depended on these collaborator-prisoners. Kapos received more privileges than normal prisoners, towards whom they were often brutal. In some circumstances they had power over life and death. They were often convicts who were offered this work in exchange for a reduced sentence or parole. Some of the Kapos were Jewish themselves, and their prosecution after the war created an ethical dilemma for courts.