Car Accident Lawsuits Modified comparative negligence The modified comparative negligence rule in car accident lawsuits is a legal doctrine which allows for partial reimbursement of damages even if other party was at fault. This idea was created to ensure that the process is more fair for both sides. If a person is partially at fault for an accident, the court can reduce the value of their financial compensation so that it reflects their contribution to the accident. Pure comparative negligence can also be used in a few states. It is used to