Impaired driving and legalization of recreational cannabis Posted on September 24, 2021February 3, 2022 By Becky Carter Sarah B. Windle, MPH, Crystal Sequeira, MScA, et al CMAJ; 193(14); 2021 Download the article Cannabis and Cannabinoids, DREs / Traffic Safety Resource Prosecutors, Seized Drugs/Controlled Substances, Toxicology