Gammage v The Queen

The case of *Gammage v The Queen* concerned an appeal to the High Court of Australia following a conviction for murder. The appellant, Gammage, had been found guilty of murder by a jury in the Supreme Court of Queensland and sentenced to life imprisonment. The appeal to the High Court challenged the validity of this conviction.

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 consider whether the evidence presented at trial was capable of supporting a finding that the appellant had acted under provocation, and if so, whether the jury had been properly instructed on the elements of this defence, including the requirement that the provocation must be such as to make an ordinary person lose self-control.

The High Court, in allowing the appeal, found that there was evidence before the jury that could have supported a defence of provocation. The trial judge's summing up, however, had not adequately explained to the jury the objective test of provocation, namely, whether an ordinary person might have reacted in the same way as the accused. The failure to properly direct the jury on this crucial aspect of the defence meant that the conviction could not stand.

Consequently, the High Court quashed the conviction for murder and ordered a new trial.