the Police Battalions were not officially military. they typically lived at home with their families
they were, also in most cases, Hitler's willing executioners.

they would "work" close to home. The Jews, the handicapped, and Gypsies, would be rounded up.

A huge ditch would first be dug by these prisoners, then thry would be systematically shot, in the method according to the police manual.

thousands of victims, often several roundups in a single day.

After, the dirt was heaped on the graves.

Then they would go home to their families, and lead a "normal" home life.

It was just their job to murder Jews...It was Hitler's orders.