Nazi Germany - A History of Concentration Camps

In 1937, Hijrick had his criminal police launch a massive dragnet operation against what he called habitual criminals and a socials. By the end of 1938, nearly 20,000 a socials were in preventative detention. These people were also sent to concentration camps, mostly as a scare tactic. In late 1936 to 37, the SS were organized the camps, shutting down most of the old ones and building new ones modeled off of Dachau.