Defective automobile parts, such as brakes and tires, can be the cause of serious car accidents. Persons injured because of these defects may pursue a lawsuit under a legal theory of known as product liability and may have claims against the manufacturer or seller. Often a products liability case requires the assistance of specialized experts to prove the defects existed and that the defective part caused the accident. In these cases it is vital to preserve the evidence of a defect immediately. If you suspect a defect caused your accident, don’t send the vehicle for scrapping and don’t sell the totaled car to the insurance company without consulting an experienced lawyer who can take steps to protect your claim and preserve your evidence.