The German
Order Police (uniformed police) was a key instrument of the security apparatus of
Nazi Germany. During the prewar period,
SS chief
Heinrich Himmler and
Kurt Daluege, chief of the Order Police, cooperated in transforming the police force of the
Weimar Republic into militarised formations ready to serve the regime's aims of conquest and racial annihilation. Police troops were first formed into battalion-sized formations for the 1939
invasion of Poland, where they were deployed for security and policing purposes, also taking part in executions and mass deportations. Twenty-three
Order Police battalions were slated to take part in the 1941 invasion of the Soviet Union, known as
Operation Barbarossa. Nine were attached to
security divisions of the
Wehrmacht. Two battalions were assigned to support the
Einsatzgruppen, the mobile
death squads of the SS, and
Organisation Todt, the military construction group. Twelve were formed into regiments, three battalions each, and designated as
Police Regiments Centre,
North,
South, and
Special Purpose. The goals of the police battalions were to secure the rear by eliminating the remnants of the enemy forces, guarding the prisoners of war, and protecting the lines of communications and captured industrial facilities. Their instructions also included, as Daluege stated, the "combat of criminal elements, above all political elements". Along with
Police Battalion 45 and
314, Police Battalion 303 was assigned to Police Regiment South. Comprising about 550 men, the battalion was raised from recruits mobilised from the 1905–1915 year groups. They were led by career police professionals, steeped in the ideology of
Nazism and driven by anti-semitism and anti-Bolshevism. The regiment was placed under the command of
Hermann Franz, a career policeman who had previously served in the Order Police in the occupied Poland. When the regiment crossed the German-Soviet border, it came under the control of
Friedrich Jeckeln, the
Higher SS and Police Leader (HSS-PF) for
Army Group South in Ukraine. ==Operational history==