If you have to call the police, you hope that they'll come to help you. You want them to take your situation seriously and to give you the support that you deserve under the law. You deserve protection and help, not to be put in a more dangerous situation.
Getting into a car accident is bad enough. When the responsible party flees the scene without leaving information, your claim can be even more complicated. You may have suffered serious injuries or expensive property damage, all with no one to hold accountable.