All accident reports made by persons involved in accidents shall be without prejudice to the individual so reporting and shall be for the confidential use of the Department of Motor Vehicles, Department of Public Safety, or other State agencies having use for the records for accident prevention purposes. The Department of Motor Vehicles may disclose the identity of a person involved in an accident when such identity is not otherwise known or when such person denies his presence at such accident and may upon request disclose to any person who has suffered injury to his person or property any information contained on any report regarding the existence of insurance. No such report shall be used as evidence in any trial, civil or criminal, arising out of an accident, except that the Department of Motor Vehicles shall furnish, upon demand of any person who has, or claims to have, made such a report or upon demand of any court, a certificate showing that a specified accident report has or has not been made to the Department of Motor Vehicles solely to prove a compliance or a failure to comply with the requirement that such a report be made to the Department of Motor Vehicles.