SEAT BELT DID NOT WORK WHEN VEHICLE WAS REAR-ENDED. BOLT HOLDING THE SEAT BELT HARNESS CAME OUT OF PILLAR AND WAS FOUND ON THE FLOOR AFTER THE ACCIDENT. THE DRIVER HIT HEAD ON THE STEERING WHEEL AS A RESULT. INSURANCE IS REQUESTING THE VEHICLE BE RELEASED TO SCRAP BUT WE ARE CONCERNED THAT THE EVIDENCE WILL NEED TO BE INVESTIGATED.