The pot lobby is at it again. December 2014, Paul Armentano, NORML’s Deputy Director issued a press release entitled, “Evidence Fails to Support Proposed DUI Impairment Levels for Cannabis.” This in and of itself is nothing new. Researchers have known for years that blood levels of THC bear only a slight relationship to impairment levels (see Dec 12 blog “What level of THC in blood causes driving impairment?”) More to the point, it has long … READ MORE
The Data Dearth – and Heads in the Sand
We just returned from the conference “Marijuana Impact on Public Health and Safety” put on by the Colorado Association of Chiefs of Police. There were representatives from 39 states and several countries, wanting to learn about Colorado’s marijuana legalization journey.
We were pleased to see the widespread recognition from many (but not all) that Colorado is not collecting the data necessary to determine what the impact of marijuana legalization is. Arapahoe County District Attorney George … READ MORE
Open Letter to States Considering Marijuana Legalization
Those who say that Colorado’s “experiment” in legalizing marijuana proves it can be done safely with proper regulation don’t realize that in an experiment, one must control input variables and measure outcomes. Colorado does neither, so its dalliance with legalization cannot properly be termed an experiment. Although it regulates retail and “medical” cannabis stores, the July 9, 2014 Department of Revenue report shows that less than one-half of Colorado’s estimated 160 metric ton annual consumption … READ MORE
Colorado’s Marijuana “Experiment” and its Effect on DUI Marijuana
We just returned from making a presentation at the Transportation Research Board of the National Academy of Sciences in Woods Hole, MA last Thursday.
The presentation was entitled Colorado’s Marijuana “Experiment” and its Effect on DUI Marijuana.
Attached is a copy of the summary of the presentation that the meeting organizer plans to publish in the meeting circular. TRB paper
Here are some highlights:
- DUI-Marijana is likely far more common than many have realized,
Recent Marijuana-Impaired Driving Studies
Two articles released last month reach starkly different conclusions about the effect of marijuana use on driving safety:
Brady, J.E., Li, G., Trends in Alcohol and Other Drugs in Fatally Injured Drivers in the United States, 1999-2010, American Journal of Epidemiology, January 29, 2014
Romano, E., Torres-Saavedra, P., Voas, R., Lacey, J.H., Drugs and Alcohol: Their Relative Crash Risk, Journal of Studies on Alcohol and Drugs, January 2014
The first has been widely quoted … READ MORE
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