At the Nuremberg NSDAP party convention of September 15, 1935, the so-called "Blutschutzgesetz" ("Blood Protection Act") and the "Reichsbčrgergesetz" (law which regulated the citizenship in the German Reich) were decreed.

The "Blutschutzgesetz", actually the "Gesetz zum Schutze des deutschen Blutes und der deutschen Ehre" ("Law to Protect German Blood and German Honour") forbad marriages between Jews and Non-Jews and sexual relationships between these two groups. The law also applied to relations between Germans and gypsies or black people. Any offence was punished with prison or penitentiary.

Words such as "Purity of German Blood" and "German or German-like Blood" were terms used in the national socialist ideology. Men were subdivided into superior and inferior races, the blood was seen as source of any "racial" character. "German- like" was mainly a definition for European peoples "without alien blood."

The "Blutschutzgesetz" also knew two more prohibitions: Jews were not allowed to hoist up the German flag nor to employ "Aryans" in their households.

Who was now seen as a Jew?
The first amendment to the "Reichsbčrgergesetz" defined as follows:

It was also stated that Jews were not able to be citizens of the Reich. Jews were not allowed to have any public functions any more, Jewish state officials were forced to retire by December 31, 1935 and they were finally not allowed to vote.

13 amendments to the "Reichsbčrgergesetz" and lots of further decrees circumscribed the life of Jews in every detail.