The phrase "to notify the police" means to inform or tell the police about something that has happened, such as a crime or an emergency situation. Full definition
Of course, the first thing that should be done if you are injured by a drunk driver is to seek immediate medical attention and to notify the police of the accident. (altmanllp.com)
It can notify police if you crashed — even if you can't call yourself. (classicgaragedfw.com)
If your portable device has been stolen, you will usually have to notify the police within 48 hours and your insurance provider within 14 days. (moneysmart.gov.au)