Driving Under the Influence of Marijuana and Illicit Drugs Among Persons Aged ≥16 Years — United States, 2018 Posted on October 10, 2023 By Becky Carter Alejandro Azofeifa, DDS; Bárbara D. Rexach-Guzmán, MPH; Abby N. Hagemeyer, PhD; Rose A. Rudd, MSPH; Erin K. Sauber-Schatz, PhD MMWR; 68(50); December 20, 2019 Access article Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Forensic Pathology and Medicolegal Death Investigation, Seized Drugs/Controlled Substances, Toxicology