CrimProf Blog

Editor: Kevin Cole
Univ. of San Diego School of Law

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Monday, February 17, 2014

"Driving Under the Influence, of Marijuana"

From The New York Times:

In a 2012 study published in the journal Psychopharmacology, only 30 percent of people under the influence of THC, the active ingredient in marijuana, failed the field test. And its ability to identify a stoned driver seems to depend heavily on whether the driver is accustomed to being stoned.

A 21-year-old on his first bender and a hardened alcoholic will both wobble on one foot. But the same is not necessarily true of a driver who just smoked his first joint and the stoner who is high five days a week. In another study, 50 percent of the less frequent smokers failed the field test.

As more states legalize medical and recreational marijuana, distinctions like these will grow more and more important. But science’s answers to crucial questions about driving while stoned — how dangerous it is, how to test for impairment, and how the risks compare to driving drunk — have been slow to reach the general public.

http://lawprofessors.typepad.com/crimprof_blog/2014/02/driving-under-the-influence-of-marijuana.html

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