The accused was charged with impaired driving contrary to section 253(1)(b) of the Criminal Code.
The Crown alleged the accused drove with more than 80 mg of alcohol in 100 mL of blood.
The accused challenged the admissibility of breath test results on Charter grounds and argued the instruments were unreliable and inaccurate.
The trial spanned 18 days over approximately two years.
The court found the police lawfully stopped the vehicle based on speeding, had reasonable and probable grounds to demand breath samples, and properly administered the breath tests.
Expert evidence from the Crown's toxicologist established the reliability of the Intoxilyzer 8000 C results.
The defence expert's theory of instrument drift was rejected as unscientific and based on incomplete data.
The accused was convicted.