Try to remain calm, and give the operator a detailed description of where you are. [substeps] If anyone is injured, assess their condition as best you can so the 911 operator will know what level of response is required.
[header] How to file criminal charges in california [title] Dial 911 to report a crime in progress. [step] Use 911 for emergencies. Call 911 after the fact if people are injured, or if you fear for your safety or think the person will come back.