I'm not crazy about looking to Nazi law as a source of how the government worked.

Insofar as there were such laws under the Third Reich, they were generally subordinated to the Führerprinzip, meaning that absolute subordination to the will of one's superiors was what was generally valued, rather than legalistic or bureaucratic hairsplitting.

Ironically, because of Hitler's leadership style and total aversion to anything that smacked of bureaucracy, the Third Reich was marked by inane court politics and fighting over scarce resources within the government. (Hitler was famous within the Nazi inner circle for only giving oral commands.)

Albert Speer's firsthand accounts in Inside the Third Reich are fascinating for this, and one of the few good sources of how the German government worked during this era.