The Tennessee Department of Safety and Homeland Security, through the Tennessee Highway Patrol and local law enforcement agencies, maintains official motor vehicle crash records for the state. Under Tennessee law, including Tenn. Code Ann. §§ 55-10-107 and 55-10-108, any law enforcement officer who investigates a motor vehicle crash involving injury, death, or property damage is required to prepare and submit a written crash report to the appropriate state system within seven days of completing the investigation. If a law enforcement officer does not investigate the crash, the driver involved must file a written accident report with the Department of Safety within 20 days of the crash. These requirements ensure that crash information is properly documented and maintained by the state.