If you see or suspect a crime is being committed dial 911 immediately. Pay close attention to the features of the offender(s) and any vehicles involved.
When reporting a crime by telephone, remain on the phone until the communications officer releases you from the call and the authorities are fully briefed with all information they require from you. You may be asked to identify some and/or all of the following information:
Age, race, height and weight
Hair color and style, and facial hair
Notable characteristics (acne, scars, glasses, mental state etc.)