May v O'Sullivan

The case of *May v O'Sullivan* concerned an appeal by Francis Charles May, who had been convicted in a South Australian court of summary jurisdiction on two charges relating to the unlawful carrying on of a bookmaking business and betting in a public place. May's appeal to the Supreme Court of South Australia was dismissed, and he sought special leave to appeal to the High Court of Australia.

The central legal issue before the High Court was whether, in criminal proceedings, the burden of proof shifts to the accused once the prosecution has established a prima facie case. The appellant argued that a misconception had arisen in South Australian courts, suggesting that if a prima facie case is made out, an onus is imposed on the accused to raise a reasonable doubt, contrary to the fundamental principle that guilt must be proven beyond reasonable doubt by the prosecution.

The High Court, in delivering its judgment, clarified that the burden of proving guilt beyond reasonable doubt rests on the prosecution from the outset and does not shift to the accused, even if a prima facie case is established. The Court noted that while a finding of a prima facie case means the defendant could lawfully be convicted on the evidence presented, the ultimate question of whether the defendant ought to be convicted depends on the tribunal being satisfied beyond reasonable doubt on the whole of the evidence. The Court expressed concern that certain observations in previous South Australian cases, particularly *R. v. Lovett*, *Wilson v. Buttery*, and *O'Halloran v. Crafter*, might have been misinterpreted as suggesting a shift in the onus of proof. While acknowledging that a defendant's failure to give evidence could be a legitimate consideration in assessing the weight of the prosecution's evidence, the Court emphasised that this did not equate to a shift in the burden of proof.

Despite making these important observations on the burden of proof in criminal cases, the High Court ultimately refused special leave to appeal. The Court found that the decision of the magistrate in the present case was not open to attack on the ground of any misapprehension as to the burden of proof, and therefore, the appeal to the High Court was dismissed.