Prisoners lacked proper equipment, clothing, nourishment, or rest.
More than have of these peoples were killed in the gas chamber system of the Nazi Death Camps run between 1942 and 1945.
Rapid expansion 1937—1939 Forced labor at Sachsenhausen brickworks By the end of June 1938, the prisoner population had expanded threefold in the previous six months, to 24,000 prisoners.
If caught, those hiding Jews were imprisoned or shot.