Truong v The Queen

In *Truong v The Queen*, the High Court of Australia considered an appeal from a conviction for murder. The appellant, Mr. Truong, 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 then granted special leave to 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 judge's summing up had sufficiently explained the elements of provocation, including the requirement that the provocation must be such as to make an ordinary person act in the way the accused did, and whether the jury had been properly instructed on the subjective element of whether the accused had in fact been provoked.

The High Court, in a joint judgment, held that the trial judge's directions on provocation were inadequate. Their Honours explained that the defence of provocation requires the jury to consider both an objective and a subjective element. The objective element requires the jury to assess whether the provocation was such that it could have caused an ordinary person to lose self-control and act in the manner of the accused. The subjective element requires the jury to determine whether the accused was, in fact, provoked and lost self-control as a result. The court found that the summing up had not adequately conveyed the interplay between these two elements and had not sufficiently explained the standard of the "ordinary person" in the context of the provocation defence.

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