What do I have to prove to win my personal injury case? How hard is this to do?

In order to prove your case you must first prove that liability rests with the other driver or responsible party. Witness statements and police reports are often instrumental in proving liability. The evidentiary standard used in civil cases is preponderance of the evidence. Once you get through the hurdle of proving liability you will then have to prove up damages. Some damages may be proven by medical bills and records, expense receipts, pictures, witness statements, estimates of repair, etc.