R. v. Kernighan

R. v. Kernighan

The prohibition on using breathalyzer results to assess credibility applies only when the Crown relies on the presumption of accuracy and the accused challenges that presumption; when the Crown calls the breath technician and relies on the presumption of identity only, the readings are part of the evidence and may...

Source-derived case information.

Citation
2010 ONCA 465
Parties
Respondent: Her Majesty the Queen; Appellant: Lynn Robert Kernighan
Court
Court of Appeal for Ontario
Jurisdiction
Canada
Judgment Date
22 June 2010
Procedural Posture
Criminal Appeal / Appeal to Court of Appeal (leave and Merits)
Outcome
Leave to appeal granted; appeal dismissed.
Legal Topics
Breathalyzer Evidence, Presumption of Accuracy, Presumption of Identity, Credibility Assessment, Carter Defence
Source Language
en
Criminal Law Evidence Breathalyzer Evidence Presumption of Accuracy Presumption of Identity Credibility Assessment Carter Defence

Source-derived case record

Summary, issues, holding and outcome

More case intelligence is available

Unlock the full research layer for this judgment.

Legal principles 3 Authorities cited 9 Party arguments 2 Amounts and remedies 3
Sign in to unlock

Parties

Her Majesty the Queen

Respondent

Lynn Robert Kernighan

Appellant

Procedural Posture

Criminal Appeal / Appeal to Court of Appeal (leave and Merits)

  1. 1 Whether breathalyzer readings may be used to assess an accused's credibility and evidence to the contrary when the Crown does not rely on the presumption of accuracy
  2. 2 Whether the prohibition in R. v. Boucher applies where the Crown called the breath technician and relied on the presumption of identity only
  3. 3 Whether the trial judge erred in considering breathalyzer results when assessing credibility

Ratio Decidendi

The prohibition on using breathalyzer results to assess credibility applies only when the Crown relies on the presumption of accuracy and the accused challenges that presumption; when the Crown calls the breath technician and relies on the presumption of identity only, the readings are part of the evidence and may be considered in assessing credibility and evidence to the contrary.

Court Disposition

Leave to appeal granted; appeal dismissed.

Orders

  • Leave to appeal granted
  • Appeal dismissed