Cannabis Use Among Drivers in Fatal Crashes in Washington State Before and After Legalization. . . 01/01/2020. Page N/A.

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Insurance Information Institute - Jan 30, 2020

This study shows that the percentage of drivers in Washington state involved in fatal crashes who tested positive for marijuana increased 100 percent five years after the state made the drug legal for recreational use. The study considered the presence of detectable THC in the blood of fatal-crash-i...

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