In Breslau (Wroc∤aw) a concentration camp for political “protective custody” prisoners existed from April 28 to August 10, 1933. Here hundreds of political opponents of National Socialism were interned in a warehouse of a fertilizer factory located in the Dürrgoy section of the city. Subsequent to the Reichstag fire on February 27–28, 1933, mass arrests of leading activists of the German Communist Party (KPD), the Social Democratic Party (SPD), and the Socialist Workers’ Party (SAP) began in Breslau. At first, the protective custody prisoners were brought to the police presidium, which soon became overcrowded. When another large wave of arrests of more than 200 persons followed on April 10, the decision to establish a concentration camp had already been made.1 The initiative to establish the camp came from SA-Obergruppenführer Edmund Heines, who had held the office of Breslau police president since about the end of March. Not infrequently, Breslau-Dürrgoy was referred to as Heines’s...