Determining fault in a head on collision requires some type of direct evidence, such as the positioning of the vehicles, video recording, photographs, eyewitness testimony, or some piece of demonstrable evidence which can show that one driver was negligent in their driving. Sometimes it can be easily proven who was at fault (i.e., one car was traveling in the wrong lane and photographic evidence of the crash proves they were in the wrong lane prior to the head on collision,) but in some circumstances, determining fault for a head on collision can be a complicated matter. Consult a personal injury attorney to help you assess the best way to prove your claim.