Adenauer was imprisoned for two days after the Night of the Long Knives on 30 June 1934; however, on 10 August 1934, maneuvering for his pension, he wrote a ten-page letter to Hermann Göring (the Prussian interior minister). He stated that as Mayor he had violated Prussian laws in order to allow NSDAP events in public buildings and Nazi flags to be flown from city flagpoles and that in 1932 he had declared publicly that the Nazis should join the Reich government in a leading role. At the end of 1932, Adenauer had indeed demanded a joint government by his Zentrum party and the Nazis for Prussia.