Dr. Kraus

The appellant appealed a decision of the Social Benefits Tribunal upholding the denial of her application for income support under the Ontario Disability Support Program Act.

The tribunal had found that her impairments, including social phobia and anxiety, were not substantial and she did not meet the definition of a person with a disability.

The Divisional Court dismissed the appeal, holding that the tribunal's weighing of the evidence to determine if impairments were substantial did not raise an extricable question of law.

Two personal injury appeals were heard together to determine the scope of Rule 53.03 of the Rules of Civil Procedure regarding expert witnesses.

The Court of Appeal held that Rule 53.03 does not apply to 'participant experts' (such as treating physicians) or 'non-party experts' who form opinions based on their observation of or participation in the events at issue, rather than being engaged by a party for the litigation.

In Westerhof, the trial judge's erroneous exclusion of such evidence warranted a new trial.

In McCallum, the trial judge correctly admitted the treating practitioners' opinion evidence.