Wikipedia
Postenpflicht
The Postenpflicht ("Duty of Guards") was part of a written order for SS guards in Nazi concentration camps regarding the use of firearms. It required SS guards to shoot prisoners who tried to escape or engage in resistance and to do so without verbal warning or a warning shot. This was relevant for example regarding the so-called "death strip" next to camp fences. The area next to these fences was off-limits and anyone getting too close to it was, in accordance with the Postenpflicht, killed without warning. The order stated that failure to shoot would result in the dismissal or arrest of the guard. Issued on October 1, 1933 as an order for Dachau, the order was later extended to other camps.