The appellant appealed a conviction for operating a motor vehicle with blood alcohol exceeding the legal limit, alleging ineffective assistance of counsel at trial.
Trial counsel mistakenly believed roadside statements regarding alcohol consumption could be used to impeach the accused’s credibility, and therefore failed to pursue a Carter defence, obtain relevant disclosure, or retain toxicology evidence.
On appeal, expert evidence suggested the approved instrument may have lacked proper maintenance and that the accused’s blood alcohol concentration at the time of driving could have been below the legal limit.
The court held that counsel’s misunderstanding of governing appellate authority affected strategic decisions and constituted ineffective assistance.
The resulting prejudice created a reasonable possibility that the verdict would have been different.