Impaired Driving: Information on Data Used to Identify Repeat Offenders Posted on August 1, 2023August 1, 2023 By sdargoltz United States Government Accountability Office (GAO) GAO; June 2023 Access article Alcohol, Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Seized Drugs/Controlled Substances, Toxicology