The appellant was charged with impaired driving.
A police officer, certified as a Drug Recognition Expert (DRE), evaluated the appellant and concluded his ability to drive was impaired by cannabis.
The trial judge excluded the DRE's opinion evidence after a Mohan voir dire, leading to an acquittal.
The summary conviction appeal judge overturned the acquittal, finding the evidence admissible under the Criminal Code without a voir dire.
The Court of Appeal dismissed the appeal, confirming that section 254(3.1) of the Criminal Code implicitly renders DRE opinion evidence admissible to prove drug-impaired driving without the necessity of a Mohan voir dire.