Canada - N.S. woman who tested positive for pot when she wasn't high to challenge roadside testing laws

[S.J.B.]

N.S. woman who tested positive for pot when she wasn't high to challenge roadside testing laws
CBC
April 3rd, 2019

Medical cannabis user Michelle Gray spent hours at a Halifax police station proving she wasn't high — but she still had her car impounded and her licence suspended for a week.

Now the Halifax woman, who uses cannabis for multiple sclerosis, plans to challenge the legality of roadside saliva tests that critics say are unreliable in determining a person's sobriety.

...

Gray was pulled over at a routine RCMP check stop on Jan. 4 when the officer noticed the smell of cannabis in her car.

She says she explained to the officer that she was a medical user, but that it had been nearly seven hours since she last consumed pot.

The officer administered a roadside saliva test, and Gray tested positive for THC, the psychoactive ingredient in cannabis. THC is stored in the fat cells and can remain detectable in a person's body for as long a month after usage, according to the Mayo Clinic.

Read the full story here.

 

[Foreigner]

They rolled out these DUI cannabis tests as soon as legalization happened, knowing full well that they are faulty. They had to do it because they had to demonstrate that they were going to go after pot DUIs somehow. It was really sloppy.

What's the alternative though? How do we differentiate between someone who's high now and who was high 7 hours ago? The subjective signs don't always reveal.