Report: State Toxicologist Sees No Spike in Marijuana DUIs

Washington state toxicologist Fiona Couper says there has been no increase in positive blood tests for THC since I-502 went into effect.

Speaking before a legislative hearing in Olympia on Wednesday, Washington toxicologist Fiona Couper said there has not been an increase in marijuana DUIs since I-502 went into effect on Dec. 6, the Associated Press reports.

The new law made it legal for adults 21 and older to possess up to an ounce of marijuana for recreational use and also set a standard for driving under the influence of pot—5 nanograms of THC per milliliter of blood.

Back in November, Edmonds police said that police would be observant of the provision in I-502 regarding THC levels and driving.

Couper told those assembled for the legislative hearing that the state's toxicology lab typically receives about 6,000 blood samples from drivers each year, with approximately 1,000 to 1,100 testing positive for active THC.

The average amount, she said, is about 6 nanograms per milliliter of blood.

Several groups raised concerns about about how local authorities would handle so-called "green DUIs" prior to the passage of I-502, with some medical marijuana advocates saying the limit could lead to increased arrests for patients.


Do you think marijuana DUIs will increase after I-502 is fully implemented? Why or why not? Tell us in the comments section.

lousie thomas February 11, 2013 at 10:14 AM
I am not sure about this that DUIs will increase after I-502 is fully implemented as It depends upon what's the result when I 502 passed 56% to 44%.The law unfortunately does not allow for home cultivation of cannabis beyond the state's existing medical marijuana laws. It does however establish a producers, processors and retailers system to allow for adults over 21 to acquire and possess up to one ounce of marijuana. http://bigbudsmag.com/lifestyle/legal/article/weed-experts-wanted-washington-february-2013
steven l baranick February 11, 2013 at 02:07 PM
No u won't get more arrest when marijuana gets implemented because ur not gonna get an influx of people rushing in, the people smoking now against the law will come in gladly because we take it for pain ,sleep,stomach,so we have needed it for a while it works tired of pharmacueticals,,,
steven l baranick February 11, 2013 at 02:22 PM
And the part of DUI's like i said u won't unless it is by someone in their 20's out partying we others r at home most of us r married or got a woman,but we don't get hi and ride around,c most don't u r normally somewhere at a friends havin a good time get a li'l buzz chill out listen to music eat pizza yes but ur still ok to drive not like alcohol at all,,but most people think that Marijuana is a bad thing it is not in 46 yrs i have smoked i have no problems from it,


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