Amaca Pty Limited v Latz; Latz v Amaca Pty Limited

The High Court of Australia considered appeals and cross-appeals in proceedings concerning claims for damages for asbestos-related lung disease. The primary claimant, Mr. Latz, alleged he contracted the disease as a result of his employment with Amaca Pty Limited and other related entities (collectively, Amaca). Amaca sought to rely on a defence of contributory negligence, arguing that Mr. Latz's smoking habits contributed to his condition. The dispute ultimately centred on whether Amaca could establish contributory negligence in circumstances where the plaintiff's exposure to asbestos was the primary cause of his disease, and his smoking was a separate, albeit contributing, factor to his lung condition.

The central legal issue before the High Court was whether the defence of contributory negligence could succeed against a plaintiff who had contracted an asbestos-related disease, where the plaintiff's smoking was also a contributing factor to his lung condition. Specifically, the Court had to determine the principles governing the apportionment of damages in such cases, and whether the common law defence of contributory negligence applied to the extent of the plaintiff's smoking-induced exacerbation of his asbestos-related illness.

The High Court held that contributory negligence could be established in these circumstances. Their Honours reasoned that the defence of contributory negligence requires a plaintiff to have failed to take reasonable care for their own safety, and that this failure must have contributed to the damage suffered. In this instance, the Court found that Mr. Latz's smoking constituted a failure to take reasonable care for his own safety, and that this failure had contributed to the severity of his lung condition, which was a component of the damage he suffered. The Court clarified that the apportionment of damages under the defence of contributory negligence should reflect the causal contribution of both the defendant's negligence (asbestos exposure) and the plaintiff's own conduct (smoking) to the overall harm. The Court allowed the appeal in part, remitting the matter for re-apportionment of damages.