sentences:  The roll call area was also used as a drill and exercise area, where prisoners had to jump up and down at 4.30 am to the sound of a drum.The Hinzert concentration camp was first established in 1938 to house workers who were building the West Wall.However, it burnt down on August 16, 1939, and was rebuilt in October 1939 as a police detention and re-education camp, or "Polizeihaft- und Erziehungslager des Reichsarbeitsdienstes (RAD)", for prisoners condemned to light sentences (under 14 days) and for those workers that had demonstrated what the Nazi regime would call "antisocial behavior".