I get asked all the time when is it appropriate to call 911 or non-emergency(503)823-3333. The simpliest answer is call 911 when a crime is occurring right now and someone is likely in danger or property damage or theft is occurring. Call non-emergency if a crime has already occurred and the suspect is already gone. Let me give you some real life examples: You know your neighbor is out of town and you see someone you have never seen before at the front of your neighbor’s house. The person you see is not a mail delivery person or a local well marked utility person. You then see the person go behind your neighbor’s house and you then hear glass breaking or a loud crash. Call 911 as you are likely observing a burglary in progress. Here is another example: You hear a loud argument from a neighbor’s apartment or house and you believe it may escalate. Call 911 as you may be hearing a domestic disturbance, your call may prevent further harm. Here is an example of a non-emergency call: You wake up and go outside and your car has been stolen. Call non-emergency, because the crime has already occurred.