Study questions methodology of marijuana DUI tests - FOX5 Vegas - KVVU

Study questions methodology of marijuana DUI tests

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Marijuana appears in this file image. (Source: File/FOX5) Marijuana appears in this file image. (Source: File/FOX5)
LAS VEGAS (FOX5) -

A new AAA study says we are testing for marijuana in drivers the wrong way. It also suggests Nevada replace its laws because they can wrongfully convict users.

AAA’s Foundation for Traffic Safety argues that there is no scientific way to test marijuana influence.

As a part of the study, AAA looked at Washington drivers involved in fatal crashes after the state legalized recreational marijuana. The data shows the number of drivers who tested positive for THC doubled to 17 percent in 2014.

It also shows that in ten of those drivers, six had mixed marijuana with other drugs, alcohol or both.

The study continues to claim the amount of time that passes between a crash and the tests plays a huge factor in the amount of THC detected in the driver’s blood.

"Just like alcohol, it affects everyone different depending on their weight, depending on their size, depending if they’ve had food before they drink alcohol.  Everyone processes food and drink and liquids and drugs differently, so it’s a new frontier in traffic safety,” AAA spokeswoman Cynthia Harris said. 

Metro police said that while they do perform blood tests, they also assess a driver's behavior.

The study calls for all officers to be trained to look for signs of impairment and to use THC tests as only a back-up.

There is a measure to legalize recreational marijuana on our ballot this November.

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