State of New South Wales v Riley

The Court of Appeal of New South Wales heard an appeal and cross-appeal concerning damages awarded to the respondent, Mr Riley, who had sued the State of New South Wales for assault, false imprisonment, and psychological damage sustained while in police custody. The central dispute revolved around the nature and extent of the damages, particularly whether aggravated and exemplary damages were appropriate, and the causal link between the police's actions and Mr Riley's injuries.

The legal issues before the court included whether the trial judge erred in awarding aggravated and exemplary damages, the distinction between these types of damages and ordinary compensatory damages, and whether the respondent had proven on the balance of probabilities that his injuries were caused by the appellant's negligence or unlawful conduct. The court also considered whether damages were recoverable for an unintended and indirect consequence of assault and false imprisonment, and the applicability of contributory negligence. Furthermore, the court examined the validity of the police's actions in arresting and detaining Mr Riley, including whether an explanation was required and the applicability of defences such as necessity and the opinion provisions of the *Mental Health Act*.

The court reasoned that while the trial judge had correctly found the police's conduct to be unlawful, the award of aggravated damages was excessive. It held that aggravated damages are intended to compensate for the additional harm caused by the manner in which the tort was committed, but the evidence did not support the extent to which the trial judge had increased the compensatory damages on this basis. Regarding exemplary damages, the court found that the police's actions, while unlawful, did not demonstrate the high degree of contumelious or vindictive conduct required to justify such an award, distinguishing it from mere human fallibility. The court also found that the mechanism of injury was not established, and therefore, an inference of negligence causing the injury was not open.

Consequently, the appeal was allowed in part, reducing Mr Riley's damages by $85,000 to $185,307.42. The cross-appeal was dismissed. The respondent was ordered to pay half of the appellant's costs of the appeal and cross-appeal, with a suitor's fund certificate granted for his costs of the appeal. Leave was granted for submissions on the costs of the proceedings at first instance.