Police and justice in particular were largely unscathed by "denazification". People like the fervent nazi anti-semite Willi Geiger, who was among other things a Special Prosecutor at a Special Nazi Court (with a death toll, having personally pressed and seen to the public execution of an 18yo suspected gay among other people), went on to preside at the supreme court and later became the longest serving federal constitutional judge of germany and also leaked all court internals to the adenauer government, are just the tip of a very brown ice berg.