The appellant was convicted of operating a vehicle with a blood alcohol concentration over 80 milligrams.
At trial, a toxicologist testified that based on the appellant's reported consumption, an average person would have registered below the legal limit, but a slow eliminator could register over the limit.
The trial judge convicted the appellant, and the summary conviction appeal judge dismissed the appeal.
On further appeal, the Court of Appeal held that expert evidence relying on population averages, without establishing the appellant's actual elimination rate, is impermissible speculation and does not constitute evidence tending to show the appellant's blood alcohol was below the legal limit.
The appeal was dismissed.