Use of roadside saliva tests for cannabis impairment remain in question

Drager DrugTest 5000 remains the only technology approved by Ottawa to test saliva for THC concentration

Michelle Gray says she’s afraid to get behind the wheel again after having her licence suspended for failing a cannabis saliva test in Nova Scotia, even though she passed a police administered sobriety test the same night.

Gray has been using medical marijuana for almost eight years to treat multiple sclerosis and she plans to launch a constitutional challenge to the law and roadside test.

“They should not be on the streets and used for testing cannabis impairment,” said Gray, who lives in Sackville. “I think the government legalized cannabis way too fast. I don’t think it was a well thought out plan.”

Six months after legalization, her case illustrates some of the challenges with enforcement facing both police and cannabis users, and highlights the questions that continue to surround the use of technology in roadside tests.

The Drager DrugTest 5000 remains the only technology approved by Ottawa to test a driver’s saliva for concentration of THC, the psychoactive ingredient in cannabis.

Einat Velichover, who manages drug and alcohol detection in Canada for Drager, said the saliva test was never designed to test for impairment.

“Our device is there to really just identify whether there’s a presence of THC. It’s not meant to measure impairment and we never claimed that it does,” she said.

“So really it’s just one tool of many that law enforcement utilize in order to assess impairment and road safety.”

Velichover said that while she appreciates the concerns that have arisen, law enforcement needs to balance cannabis users’ rights with the importance of keeping roads safe.

Justice Department spokeswoman Angela Savard said the Canadian Society of Forensic Science tests and evaluates technology then recommends it to the attorney general for consideration.

If a driver fails the roadside test, the result can be used in developing “reasonable grounds” to believe that a drug-impaired driving offence has occurred and also give the officer grounds to investigate further, she said.

“It is important to note that investigating drug-impaired driving is not exclusively dependent on a drug screener,” she said in an email.

READ MORE: Nova Scotia woman plans constitutional challenge of roadside cannabis test

READ MORE: 10 things still illegal in the new age of recreational cannabis

As of Oct. 1, there were more than 13,000 law enforcement officers trained in standardized field sobriety testing and 833 officers trained as drug recognition experts across Canada, she said. Further training is underway.

Savard said the department expects more technology to be recommended and approved in the future, but couldn’t comment on ongoing evaluations.

Some police departments are declining to use the saliva test.

“For the most part, in British Columbia, police departments have not deployed it. Several departments have a Drager 5000 that we can use and test but we’re all a little bit wary,” said Chief Const. Mike Serr of the Abbotsford Police Department.

Serr said many departments are waiting to get a better sense of the test’s value and are concerned charges could be thrown out if it is challenged in court.

“We’re concerned on how that potentially could play out,” said Serr, who is also the co-chair of the drug policy committee with the Canadian Association of Chiefs of Police.

“It doesn’t give us the quantitative analysis so it really doesn’t provide us much extra beyond what a drug recognition expert can provide us with. So at this point, the practical uses of the tool haven’t really been proven to us.”

In the meantime, he said anecdotal reports from departments suggest the increased training seems to be resulting in a slight increase in drug-impaired driving charges since legalization. In Abbotsford, 30 per cent of frontline police officers are now trained in standardized field sobriety testing and all members of the traffic unit are drug recognition experts.

“That’s something that wasn’t done pre-legalization,” he said.

But as impaired driving continues to be a reality, others say they want to see saliva testing tools used more often.

Eric Dumschat, legal director for Mothers Against Drunk Driving Canada, said the organization is hoping more technology gets approved and rolled out.

“We had expected there would have been more devices approved by this point and hopefully in the longer run, the technology is able to be improved. In an ideal world, we would have the equivalent of the breathalyzer, but alcohol is a very simple molecule compared with THC,” he said.

He said while testing bodily fluids is important to indicate recent use, the increase in sobriety and drug recognition training is better for identifying impairment and has been making roads safer.

“In regards to enforcement, I think it’s going about as well as it can be,” he said.

Amy Smart, The Canadian Press

Like us on Facebook and follow us on Twitter.

Just Posted

Lacombe Grade 6 students become Mayor for a Day at City Hall

Students took part in a mock City council meeting

Town of Blackfalds holds Multi-Plex Open House

Designs for dual-arena, expanded library shown at public consultation

Lacombe’s Galactic Wranglers Robotics Club earns way to World Championships

Community donates over $18,000 for Houston trip in five days

Lacombe Rams Rugby off to promising start in 2019

Coach looking for right mix of veterans and new players

Kenney talks pipelines with Trudeau after election win, calls it cordial

Almost a year ago Kenney dismissed Trudeau as a dilettante and a lightweight

‘Open for business:’ Jason Kenney’s UCP wins majority in Alberta election

The UCP was leading or elected in 63 of 87 seats Tuesday night

Undercover cops don’t need warrant to email, text suspected child lurers: court

High court decision came Thursday in the case of Sean Patrick Mills of Newfoundland

VIDEO: Trump tried to seize control of Mueller probe, report says

Special counsel Robert Mueller’s report revealed to a waiting nation Thursday

Alberta RCMP reminds Albertans how to be ‘egg-stra’ safe this Easter

Put away phone while driving, plan for a designated driver

B.C. awaits Kenney’s ‘turn off taps,’ threat; Quebec rejects Alberta pipelines

B.C. Premier John Horgan said he spoke with Kenney Wednesday and the tone was cordial

Federal government extends deadline to make Trans Mountain decision to June 18

The National Energy Board endorsed an expansion of the Trans Mountain pipeline on Feb. 22

Precautionary evacuation for Red Deer, Alta., residents due to industrial fire

City officials are advising people to close windows and doors and to turn off air intakes into homes

Study links preschool screen time to behavioural and attention problems

The research looked at more than 2,400 families

Could a pharmacist’s consultation help more people get vaccinated?

Canadian study suggests giving pharmacists a monetary incentive to consult would cut influenza cases

Most Read