Thursday, November 7, 2013

Marijuana impaired driving cases increased in past year, many are minors

According to a recent NPR story, the Washington state toxicology lab shared preliminary data that indicate an increase in marijuana-related DUIs.

"According to preliminary statistics, roughly 27 percent of the blood tests for suspected impaired driving showed detectable THC.  Before this year, that number was around 20 percent.  That's a 7-point jump in the months since legalization."

What the story did not include was information about how many of those marijuana DUIs were among minors.  According to the state toxicologist:

  • Typically, one quarter of those cases confirming positive for THC are aged under 21 years.
  • Marijuana is the most frequently detected drug in those aged under 21 years (including alcohol).

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