The appellant was convicted of sexually assaulting three complainants and administering a stupefying drug to one of them.
The complainants alleged they felt ill after drinking wine provided by the appellant.
At trial, the Crown relied on expert evidence that GHB was found in one of the wine bottles.
On appeal, the appellant sought to introduce fresh expert evidence showing that GHB occurs naturally in all red wine, including the specific brand and vintage seized.
The Court of Appeal applied the Palmer test and admitted the fresh evidence, finding it could reasonably be expected to have affected the jury's assessment of the complainants' credibility.
The appeal was allowed and a new trial ordered.