Markovich v The Queen

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

The primary legal issues before the Court were whether the trial judge erred in admitting evidence obtained in circumstances that may have infringed the applicant's rights, and whether the jury had been adequately directed on the defence of provocation, particularly in light of the applicant's mental impairment. The Court also had to consider the proper interpretation and application of the *Criminal Code*'s provisions concerning the defence of provocation and the relevance of an accused's mental state to the elements of the offence.

The Court's reasoning focused on the principles governing the admission of evidence obtained in breach of an accused's rights, balancing the probative value of the evidence against the potential prejudice to the accused. It also examined the elements of provocation as defined by the *Criminal Code*, emphasising the need for a subjective element of loss of self-control and an objective element of whether the provocation was such as to make a reasonable person lose self-control. The Court considered how an accused's mental impairment might affect their capacity to form the requisite intent and their ability to react to provocation in a manner comparable to a reasonable person.

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