Haddon v The Queen

In *Haddon v The Queen*, the High Court of Australia considered an appeal by the applicant, Haddon, against his conviction for murder. The dispute centred on the admissibility of certain evidence and the fairness of the trial process.

The primary legal issues before the High Court were whether the trial judge had erred in admitting evidence obtained in breach of the applicant's rights, and whether the trial judge's directions to the jury on the issue of self-defence were adequate. Specifically, the court had to determine if the evidence, which included a confession made by the applicant, should have been excluded under the principle that improperly or unfairly obtained evidence should be rejected.

McHugh and Kirby JJ, in their joint judgment, analysed the admissibility of the confession by reference to the common law exclusionary rule. They affirmed that while the rule is not absolute, the onus is on the prosecution to demonstrate that the evidence was not obtained improperly or unfairly. The judges considered the circumstances surrounding the confession, including the applicant's state of mind and the conduct of the police. They also examined the jury directions on self-defence, noting the importance of ensuring the jury understood the relevant legal tests and the burden of proof.

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