Henderson v The Queen

Henderson appealed his conviction for murder in the Supreme Court of New South Wales to the High Court of Australia. The central issue on appeal concerned the admissibility of a confession made by the appellant to police. The appellant argued that the confession was improperly obtained and should have been excluded from evidence, as it was made under circumstances that rendered it involuntary or otherwise unfair to the appellant.

The High Court was required to determine whether the trial judge erred in admitting the confession into evidence. This involved considering the principles governing the admissibility of confessions, particularly the common law exclusionary rules relating to voluntariness and fairness. The Court had to assess whether the appellant's will was overborne by the conduct of the police, or whether the confession was obtained in circumstances that were unfair to the appellant, thereby necessitating its exclusion in the interests of a fair trial.

In their joint judgment, Gummow and Kirby JJ affirmed the principles that a confession is inadmissible if it is involuntary, meaning it was not made of the free will of the accused, or if its admission would be unfair to the accused. They emphasised that the onus lies on the Crown to prove beyond reasonable doubt that a confession was voluntary. Applying these principles, their Honours found that the trial judge had correctly assessed the evidence regarding the circumstances of the confession and had not erred in admitting it. The appeal was dismissed.