The appellant was convicted of driving over 80 after registering breathalyzer readings of 229 and 235.
At trial, the defence adduced a toxicologist's report estimating the appellant's blood alcohol concentration at the time of the offence was between 0 and 95 milligrams, depending on his elimination rate.
The trial judge and summary conviction appeal court rejected this as evidence to the contrary.
The Court of Appeal dismissed the appeal, holding that under the amended s. 258(1)(d.1) of the Criminal Code, evidence must show the blood alcohol level was below the legal limit, and evidence that merely straddles the limit is insufficient to rebut the presumption of identity.