The key to winning a motorcycle accident case is proving fault. The insurance company for the other driver will likely work aggressively to prove that you caused the accident or you contributed to the cause of the accident. The insurance company can reduce its liability if it can prove you were partially responsible for causing the crash. An accident attorney investigates the cause of the crash and gathers evidence to prove liability. Evidence that can help prove that you were not responsible for causing the crash includes: Eyewitness statements Photographs of the accident scene Videos from traffic cameras and other sources Expert testimony from accident reconstructionists and other experts Physical evidence from the vehicles Cell phone data Data from onboard systems The quicker your attorney begins an investigation, the better chance there is of preserving crucial evidence to prove fault. Liable parties in a motorcycle accident claim include other drivers, motorcycle manufacturers, government entities, road construction companies, parts manufacturers, and repair shops.