R v Vallentgoed (ABCA): Crown not required to disclose Intoxilyzer maintenance records
The Criminal Code contains evidentiary presumptions relating to the accuracy of evidentiary breath tests. The only path to defend against this presumption is for the accused to raise a reasonable doubt on the issues of whether the instrument was malfunctioning or whether it was operated improperly. The materials which an accused person is entitled to receive from the Crown in order to attempt to raise such a doubt has been the subject of debate in Alberta courts (and elsewhere in Canada) for several years. In January 2013, an Alberta Court of Queen's bench decision on a summary conviction appeal held that maintenance logs for evidentiary breath testing instruments (such as the Intoxilyzer 5000C) must be disclosed by the Crown to an accused person on request: R. v. Kilpatrick, 2013 ABQB 5. The Crown sought leave to appeal the decision of the summary conviction appeal court. Leave was denied, with Justice O'Brien concluding that the evidentiary record from the courts below was not sufficient for the Court of Appeal to properly consider the questions on which the Crown sought leave to [...]



