Zanner v Zanner

The appeal concerned a motor vehicle accident where the first appellant, driving a vehicle, collided with the respondent. The dispute centred on whether the first appellant breached a duty of care owed to the respondent, and if so, whether that breach caused the respondent's injuries, and the extent to which any contributory negligence by the respondent should affect damages. The matter was heard in the Court of Appeal of New South Wales.

The primary legal issues before the court were: (1) whether the first appellant owed a duty of care to the respondent, and if so, the scope and content of that duty; (2) whether the first appellant breached that duty of care; (3) whether the breach of duty caused the respondent's injuries, considering the tests for factual causation and the scope of liability under the Civil Liability Act 2002 (NSW); and (4) whether the respondent was contributorily negligent, and if so, the just and equitable apportionment of blame.

The Court of Appeal found that the first appellant, as the driver of a motor vehicle, owed a duty of care to the respondent. While the initial duty might have been limited to manoeuvring the vehicle into a carport, the court determined that the first appellant was negligent in failing to maintain control of the vehicle, specifically by not keeping his foot on the brake and allowing it to slip onto the accelerator. This failure satisfied the factual causation test. Furthermore, the court held that the scope of the first appellant's liability extended to the harm suffered by the respondent, finding no reason to limit responsibility. Regarding contributory negligence, the court concluded that while the respondent was also at fault, the culpability and causal potency of the parties were not equal, and therefore, a 100% reduction in damages was not appropriate.

The Court of Appeal allowed the appeal in part, setting aside the District Court's judgment of $350,000 in favour of the respondent. A substituted judgment was entered for the respondent against the appellants in the sum of $140,000. The appellants were ordered to pay 80% of the respondent's costs of the appeal.