The clever bit, and this is key, was to place the Gestapo beyond the authority of the courts.
On February 10, 1936, the Nazi Reichstag passed the 'Gestapo Law' which included the following paragraph: "Neither the instructions nor the affairs of the Gestapo will be open to review by the administrative courts." This meant the Gestapo was now above the law and there could be no legal appeal regarding anything it did. (The History Place)
So, let's just get one thing straight, shall we? Hitler did not start by executing Jews. He started by making sure the infrastructure of Nazism was beyond the rule of law. Also, his regime was motivated by hatred and revenge, mediated by the ignorance of the population and the tacit and actual connivance of the German people.
tags: Bob Crow, Dave Prentiss, Brendan Barber, Mark Sewotka