No such accident report shall be used as evidence in any trial, civil or criminal, arising out of an accident, except that the department 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 solely to prove a compliance or failure to comply with the requirement that such a report be made to the department.
Ca. Veh. Code § 20013