Green v The Queen

In *Green v The Queen*, the High Court of Australia considered an appeal by the applicant, Green, against his conviction for murder. The central dispute concerned the admissibility of certain evidence obtained during a police interview and the subsequent application of the *Criminal Code* (Cth) in relation to the applicant's mental state at the time of the offence.

The High Court was required to determine two primary legal issues. Firstly, whether the trial judge erred in admitting evidence derived from a police interview conducted after the applicant had indicated a desire to remain silent. Secondly, the Court had to consider whether the jury had been adequately directed on the defence of provocation, particularly in light of the applicant's evidence concerning his mental state and the circumstances surrounding the killing.

The Court held that the admission of the interview evidence was a miscarriage of justice. It applied the principle that once an accused indicates a desire to remain silent, police questioning should cease, and any subsequent admissions obtained in contravention of this right are generally inadmissible. Regarding the provocation defence, the Court found that the jury directions were insufficient. It reiterated that provocation involves a loss of self-control caused by acts or omissions of the deceased, which would have had that effect on an ordinary person, and that the jury must be properly instructed on the objective and subjective elements of this defence.

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