The name and address of any witnesses. Quotes Chimp is common for the participants in an accident to have differing versions, often self-serving ones at that, of how the collision occurred. This often leads to a situation where it is one driver's word against the other's. For this reason, it is vital that you obtain the names and addresses of witnesses to the mishap who can assist in determining what happened. This is important even if your company will pay benefits, since they have the right to sue the party at fault or his or her insurance company for reimbursement for the benefits paid. This kind of lawsuit is called subrogation.