In particular, recordings of attacks on emergency and rescue forces are of interest in order to solve the crimes, the police said Wednesday. It asked for information on the place and time of recording. On the night of New Year's Day, police officers and firefighters had been attacked on duty in several German cities, including with firecrackers and rockets. The attacks were particularly fierce in some neighborhoods of Berlin. According to Berlin police, 355 criminal and administrative offenses were initiated. 145 people were temporarily arrested.