May 11, 2014

States wrestle with measuring stoned driver impairment levels

Josephine Drum says her daughter was “cheated out of life” when she was killed while driving to work in downtown Seattle in 2012, hit by a man in a Jeep whose blood tested positive for marijuana. “I feel if you smoke marijuana and you have to smoke it, that you should not be able to drive under the influence,” said Drum, of Stockton, Calif. “I’m 84 years old. To have lost my daughter is something hard for me to accept.” With the push to legalize marijuana surging in popularity, states want to assure the public that roads will be safe. But they face a perplexing question: How stoned is too stoned to drive?

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