Over 40% of deceased drivers in vehicle crashes test positive for THC: Study

A recent study analyzing deceased drivers in fatal motor vehicle crashes found that nearly 42% tested positive for active THC in their blood, with average levels significantly exceeding typical impairment limits. This high prevalence of recent cannabis use among deceased drivers remained consistent over a six-year period, including after recreational cannabis legalization in the study area, suggesting legalization did not alter this dangerous driving behavior. Researchers emphasize the need for stronger public health messaging comparable to warnings about impaired driving from alcohol.

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