Prevalence of alcohol, cannabis, and simultaneous use among drivers in six states Posted on November 23, 2022November 23, 2022 By sdargoltz Angela H. Eichelberger IIHS; 16pp; 2022 Access article Alcohol, Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Seized Drugs/Controlled Substances, Toxicology