The accused was charged with impaired driving and operating a motor vehicle with a blood alcohol concentration in excess of 80 mg per 100 ml of blood.
The accused conceded his blood alcohol concentration exceeded the statutory limit but challenged the lawfulness of his detention, arguing that the evidence was obtained in violation of his Charter rights.
The court found that the accused was not detained when the officer knocked on his vehicle window, as there was no significant physical or psychological restraint at that point.
The detention crystallized only when the officer directed the accused to exit the vehicle, at which point the officer had reasonable and probable grounds based on observations of impairment.
The Charter application was dismissed, and the accused was found guilty of the Over 80 charge.
The impaired driving charge was stayed pursuant to the Kienapple principle.