The order for the construction of eight barracks at Flossenbürg went through on 31 March, SS guards arrived in April, and on 3 May 1938, a transport of 100 prisoners arrived from Dachau, establishing the camp. More prisoners arrived from Dachau on 9 and 16 May; Himmler visited the camp on 16 May with Pohl, indicating that the SS considered it an important project. The SS attempted to segregate prisoners incarcerated for criminal offenses at Flossenbürg because forced labor in the quarries was considered a particularly harsh punishment. Most of the prisoners at Flossenbürg were classified as criminal, with some "asocial" and a few homosexual prisoners; the criminals quickly took over the prisoner functionary positions.