The SS-Totenkopf was the concentration camp division of Hitler's Schutzstaffel. A doctor like this was commonly seen in concentration camps, such as Auschwitz-Birkenau. The SS recruited men who either joined the Nazi Party during its beginning, or from German doctors who wanted a job opportunity. These men either served as doctors to treat camp personnel, or as doctors who would conduct dangerous experiments on the prisoners. Either way, the doctor had to have prior medical experience in order to serve inside the camp.