Extermination through labour
Soviet POWs, Mathausen
The political function of the camp continued in parallel with its economic role. Until at least 1942, it was used for the imprisonment and murder of Germany's political and ideological enemies, both real and imagined. The camp served the needs of the German war machine and also carried out extermination through labour. When the inmates were totally exhausted after having worked in the quarries for 12 hours a day, or if they were too ill or too weak to work, they were then transferred to the Revier ("Krankenrevier", sick barrack) or other places for extermination. Initially, the camp did not have a gas chamber of its own and the so-called Muselmänner, or prisoners who were too sick to work, after being maltreated, under-nourished or exhausted, were then transferred to other concentration camps for extermination (mostly to the infamous Hartheim Castle, which was 40.7 kilometres / 25.3 miles away), or killed by lethal injection and cremated in the local crematorium. The growing number of prisoners made the system too expensive and from 1940, Mauthausen was one of the few camps in the West to use a gas chamber on a regular basis. In the beginning, an improvised mobile gas chamber a van with the exhaust pipe connected to the inside shuttled between Mauthausen and Gusen. By December 1941, a permanent gas chamber that could kill about 120 prisoners at a time was completed.