The AP reports, “People who use marijuana before driving are nearly twice as likely to cause a car crash as those not under the influence of alcohol or drugs,” according to a study published in BMJ.
“Experts at Dalhousie University in Canada reviewed nine studies of more than 49,000 people involved in accidents on public roads involving one or more motor vehicles, including cars, trucks, buses and motorcycles. Marijuana use was confirmed by blood tests or self-reporting.”
