R. v. Ly

R. v. Ly

The Court of Appeal upheld the trial judge's credibility findings and dismissed the appeal: the trial judge reasonably rejected the appellant's testimony about not feeling effects after significant drinking; the expert's report lacked the necessary foundation and probative linkage to conclude the appellant's BAC was...

Source-derived case information.

Citation
C42069
Parties
Respondent: Her Majesty the Queen; Appellant: Vi Ly
Court
Court of Appeal for Ontario
Jurisdiction
Canada
Judgment Date
3 June 2005
Procedural Posture
Criminal Impaired Driving (summary Conviction) / Appeal to Ontario Court of Appeal From Summary Conviction Appeal Judge; Conviction Affirmed
Outcome
Appeal dismissed; conviction affirmed
Legal Topics
Driving With Blood Alcohol Over Legal Limit, .08 Legal Limit, Credibility Assessment, Expert Opinion and Foundation, Bolus Drinking Defence, Breathalyzer Evidence, Precedent on Expert Evidence (heideman)
Source Language
en
Criminal Law Impaired Driving Evidence Driving With Blood Alcohol Over Legal Limit .08 Legal Limit Credibility Assessment Expert Opinion and Foundation Bolus Drinking Defence +2 more

Source-derived case record

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Parties

Her Majesty the Queen

Respondent

Vi Ly

Appellant

Procedural Posture

Criminal Impaired Driving (summary Conviction) / Appeal to Ontario Court of Appeal From Summary Conviction Appeal Judge; Conviction Affirmed

  1. 1 Whether the trial judge improperly rejected the appellant's evidence or took judicial notice of alcohol effects
  2. 2 Whether the trial judge failed to consider the expert report and breathalyzer readings in assessing the bolus drinking defence
  3. 3 Whether the expert's report had a proper foundation to prove the appellant's blood-alcohol concentration at the time of the offence

Ratio Decidendi

The Court of Appeal upheld the trial judge's credibility findings and dismissed the appeal: the trial judge reasonably rejected the appellant's testimony about not feeling effects after significant drinking; the expert's report lacked the necessary foundation and probative linkage to conclude the appellant's BAC was below .08 at the material time; Heideman is binding in Ontario and supports requiring such a foundation for expert evidence on retroactive BAC estimation.

Court Disposition

Appeal dismissed; conviction affirmed

Orders

  • Appeal dismissed and conviction for driving with blood-alcohol level exceeding the legal limit affirmed