May v Thomas

In the case of May v Thomas, the appellant, May, was found liable for assault after an altercation with the respondent, Thomas, which took place in the early hours of the morning outside a hotel. May's appeal against the decision of the District Court was dismissed, and he sought further recourse in the Supreme Court of Western Australia. The legal issues at the heart of the appeal centred on whether the trial judge erred in law by not making necessary findings of fact regarding the elements of self-defence and defence of others, which are crucial in the context of assault charges under both common law and the Criminal Code of Western Australia. The court had to determine if these omissions constituted an error of law and whether they warranted the setting aside of the original decision and the remitting of the matter for a re-hearing.

The Supreme Court held that the trial judge failed to make critical findings of fact concerning the nature of the threat and the response of the parties, as well as the state of mind of the defender. These omissions were significant because they prevented a proper assessment of the defences raised by May. The court found that for both self-defence and defence of others, it is necessary to establish the proportionality of the response to the perceived threat, as well as the state of mind of the defender at the time of the incident. Given that the trial judge did not make these findings, the court concluded that there was an error of law, which led to the setting aside of the original decision. The matter was remitted to the District Court for re-hearing, with the instruction that it be heard by a differently constituted bench.

In light of the findings, the Supreme Court allowed the appeal and set aside the decision of the primary judge. The case was then remitted to the District Court for a re-hearing, ensuring that the new tribunal would be differently constituted. This decision underscores the importance of thorough fact-finding in cases involving defences to assault charges, particularly when those defences hinge on subjective assessments of threat and response.