3. Go to the police station for drug tests

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What are the laws about cannabis and driving?
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3. Go to the police station for drug tests

At the police station, a certified drug recognition expert will do more tests. This includes physical co-ordination exercises similar to the Standardized Field Sobriety Tests. They may also check your:

  • blood pressure
  • oral body temperature
  • pulse
  • pupil size in different lighting conditions

The expert will look at the test results. If they find you're impaired, they will identify the drug and you'll be charged with impaired driving. The expert can order you to give a blood, urine, or saliva sample to confirm that the drug is in your body.

It is a criminal offence to refuse to do a drug evaluation test. If you refuse, the police will charge you with failure to comply with a demand. A court will decide whether you had a reasonable excuse for refusing. It's hard to show that you had a reasonable excuse. If the police ask for a drug evaluation tests, it's best to do the test.

You have the right to talk to a lawyer before doing drug evaluation tests at the police station. And you have the right to remain silent if the police ask you questions.

Reviewed: October 17, 2018

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