Hannes v The Queen

Hannes v The Queen concerned an appeal to the High Court of Australia following a conviction for murder. The appellant, Hannes, had been found guilty of murder by a jury in the Supreme Court of Victoria and subsequently appealed to the Court of Appeal of Victoria, which dismissed his appeal. Hannes then sought and was granted special leave to appeal to the High Court.

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 question was whether the judge's summing up had sufficiently explained the elements of provocation, particularly the requirement that the provocation must be such as to make an ordinary person, in the position of the accused, act as the accused did.

Gummow J, delivering the judgment of the High Court, analysed the principles of provocation as a partial defence to murder under Australian law. His Honour referred to established authorities, emphasising that the test for provocation involves both an objective and a subjective element. The subjective element concerns whether the accused was, in fact, provoked and lost self-control. The objective element requires consideration of whether the provocation was sufficient to cause an ordinary person, in the circumstances of the accused, to lose self-control and act in the way the accused did. Gummow J found that the trial judge's directions, when viewed in their entirety, did not adequately convey the objective component of the defence to the jury, thereby creating a risk of misdirection.

The High Court allowed the appeal, quashed the conviction for murder, and ordered a new trial.