The Police Union (GdP) was founded at the federal level in Hamburg on 14 September 1950. It emerged from the community of interests of the police officers' unions in the British zone and West Berlin, which had been formed nationally from various police associations on 16 March 1950. Today the GdP is the largest police union in the world.
Since then, the GdP has been open for membership as a professional representation for all police employees (police officers, administrative staff and employees covered by collective agreements).
The GdP organises around 195,000 members. Within the GdP, so-called groups of people represent specific interests of women, senior citizens and young police employees. The GdP is based in Berlin. The national offices are located in Berlin and in Hilden/North Rhine-Westphalia. The national offices form the working level of the Federal Executive Committee (GBV) of the Police Union.
The GdP has been a member of the German Trade Union Federation since 1 April 1978.
At European level, the Police Union operates with a liaison office in Europe's capital, Brussels. On April 21, 2016, the GdP office, located in the Brussels representation of the State of Hesse, was handed over to its purpose.