If you see a crime in progress or a situation that could be life-threatening, call 9-1-1.
For everything else, call Antioch Police Department's nonemergency line: 925-778-2441.
Don't put off calling because you think a matter is too trivial and police are too busy.
You can remain anonymous; even if a dispatcher asks for your name, you don't have to identify yourself.
Be prepared to report the following details if you spot trouble:
Describe the person: Race, age, sex, height, weight, hair, clothing
Describe the vehicle: Make, model, color, number of doors, license plate
Are weapons involved?
Is anyone hurt?