Violation of Traffic Laws as Proof of Negligence

In an automobile accident action against a driver for damages suffered in a car collision, the driver's violation of a traffic law can be evidence of his or her negligence. The law calls negligence based upon the violation of a specific requirement of law "negligence per se." Negligence per se means that as a matter of law negligence existed. While the violation of a traffic law is negligence as a matter of law, the violation does not mean that the driver is liable unless the negligence was the proximate cause of the plaintiff's injury. Negligence is ordinarily a question for a jury. It only becomes a question of law when a court determines that only one conclusion can reasonably be drawn from the evidence. If the violation of the traffic law is treated as negligence per se, the question of negligence will not be given to the jury.