When you have a car accident, the first thing you may say is that the accident wasn’t your fault. It's an instinct, which people looking back often don't understand. Unfortunately, the other driver or drivers probably say the same thing.
Determining who is at fault in a car accident comes down to one thing: negligence. All drivers have a responsibility to obey traffic rules and not harm pedestrians or other drivers. Negligence is when a driver acts in a thoughtless or careless way that causes harm to someone else. For example, if the driver fails to stop for a red light or yield, he or she behaved in a careless or thoughtless manner.