This happened in Görlitzer Park, in Kreuzberg, Berlin, one of the most third-world colonised parts of Germany. The park is nototious for drug dealing. Police were called to deal with an assault. When they arrive, they ask to see someone's ID. He refuses to show it and tries to walk away. They apprehend him and his female companion starts to become hysterical. Soon more and more brown people arrive to harass then attack the small group of police before vast waves of reinforcements arrive.