From the beginning of the existence of the German Auschwitz camp, the bodies of murdered prisoners were incinerated. The first crematorium on the grounds of the camp was opened in August 1940 and, of course, prisoners of the camp had to work there. The situation of this work group changed when the killing of people in gas chambers began in the camp. The Sonderkommando was then formed. Paweł Sawicki spoke to Dr. Igor Bartosik of the Memorial Research Centre about the beginnings of this special work unit.