The Crown appealed a summary conviction decision acquitting the accused of operating a motor vehicle with a blood alcohol concentration exceeding 80 mg and staying an impaired driving conviction due to an alleged Charter breach.
The trial judge had excluded the certificate of analysis because police made only an approved screening device demand rather than the required approved instrument demand, and had stayed the impaired driving charge due to the accused being detained for approximately ten hours after providing breath samples.
The appellate court held that the acquittal on the over‑80 charge was correct because the statutory presumption required strict compliance with the approved instrument demand under the Criminal Code.
However, although the extended detention constituted an arbitrary detention contrary to s. 9 of the Charter, the trial judge erred by imposing a stay of proceedings without applying the correct legal framework for such a remedy.
The appropriate response to the Charter breach was a lesser remedy, such as sentence reduction.
The stay was therefore set aside, a conviction entered for impaired driving, and the matter remitted for sentencing.