During the summer months, the battalion took part in joint actions with the 1st SS Infantry Brigade of the Waffen-SS, both providing support and undertaking independent killings. The brigade's report of 19 August to the Command Staff Reichsführer-SS (SS operational staff set up for the invasion) noted that Police Battalions 45 and 303 and the brigade jointly participated in "combat of gangs". The 22 August report noted that the battalion shot three "partisan women", 19 "bandits", and 537 Jews.[6]