Organised crime groups, made up of former convicts and known as Ringvereine, did exist in the Germany of this period, and they've been discussed in a couple of previous responses. While there's always more to be said, you might like to review those threads while you're waiting for fresh answers to your question.

Fritz Lang's "M" (1931) gives the impression of a large organized crime network in Weimar Germany. Was organized crime a large factor in in Nazi Germany as well?, led by u/commiespaceinvader

Were there famous gangsters during the Third Reich? Or was the totalitarian nature of the regime a good deterrent for organized criminal activities?, led by u/Abrytan