Studies shed more light on debate around marijuana-impaired driving

By John Ingold
The Denver Post

Marijuana. (Jupiter Images)
A new study by CU Denver professor Daniel Rees and Montana State University professor D. Mark Anderson suggests stoned-driving limits don’t impact traffic fatalities. Rees said he and Anderson looked at fatality data from 16 states that adopted marijuana-limit laws between 1990 and 2010 and found no statistically significant difference between states that did and didn’t have such laws. “We cut the data a bunch of different ways and the estimate just came back zero zero, zero, zero, zero,” Rees said. ”
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