McNab v Director of Public Prosecutions

McNab sought judicial review of a decision of the District Court of New South Wales, which had dismissed his appeal against a conviction in the Local Court. The central dispute concerned whether the District Court judge had committed a jurisdictional error by failing to properly consider the onus of proof in an appeal from a conviction in the Local Court. The applicant argued that the District Court judge had impermissibly relied on the magistrate's credibility findings and had effectively reversed the onus of proof, requiring the appellant to demonstrate error rather than requiring the prosecutor to establish guilt beyond reasonable doubt.

The Supreme Court of New South Wales was required to determine whether the District Court judge had erred in law by failing to apply the correct standard of proof on the appeal. Specifically, the court considered whether the District Court judge had correctly understood that the prosecutor bore the onus of proving guilt beyond reasonable doubt, even on an appeal from a conviction in the Local Court, and whether the judge's approach to the magistrate's findings constituted a jurisdictional error. The court also examined whether the requirement for an appellant to demonstrate error by the magistrate effectively reversed the onus of proof.

The Court of Appeal held that the District Court judge had not committed a jurisdictional error. It reasoned that the judge had correctly understood the onus of proof rested with the prosecution to establish guilt beyond reasonable doubt. The judge's reference to the magistrate's findings was not an abdication of this responsibility but rather an acknowledgment of the evidence considered by the magistrate, which was permissible in the context of an appeal. The court clarified that an appellant is not required to demonstrate factual, legal, or discretionary error by the magistrate to succeed; rather, the prosecutor must still prove guilt beyond reasonable doubt.

The summons for judicial review was dismissed. The sentence imposed by the Local Court was ordered to recommence on the date of the Supreme Court's judgment and terminate 36 weeks thereafter. The applicant was ordered to pay the Director of Public Prosecutions' costs.