Agnew v The Queen

The High Court of Australia considered an appeal by the applicant, Agnew, against his conviction for murder. The applicant had been found guilty of murder by a jury in the Supreme Court of New South Wales and subsequently appealed to the Court of Criminal Appeal of New South Wales, which dismissed his appeal. The High Court granted special leave to appeal from the decision of the Court of Criminal Appeal.

The central legal issue before the High Court was whether the trial judge had erred in law by failing to direct the jury adequately on the defence of provocation. Specifically, the court had to determine if the evidence presented at trial was capable of supporting a finding that the applicant had acted under a sudden or temporary loss of self-control induced by provocation, thereby reducing the charge from murder to manslaughter.

The High Court, in a joint judgment delivered by McHugh, Kirby and Heydon JJ, held that the trial judge's directions on provocation were insufficient. Their Honours reasoned that the jury must be given the opportunity to consider whether the provocation, if accepted, was sufficient to cause an ordinary person to lose self-control and act as the applicant did. The court emphasised that the test for provocation involves both an objective element (whether an ordinary person would have lost self-control) and a subjective element (whether this particular applicant did lose self-control). The failure to adequately direct the jury on these elements meant that the conviction could not stand.

Consequently, the High Court allowed the appeal, quashed the conviction for murder, and ordered a new trial on the charge of murder.