Allen v Chadwick

The case of *Allen v Chadwick* involved an appeal to the High Court of Australia concerning claims of negligence and contributory negligence. The respondent, Ms Chadwick, had suffered serious injuries when she travelled as a passenger in a car driven by the appellant, Mr Allen, who was intoxicated. Ms Chadwick also failed to wear a seatbelt during the journey. The primary dispute revolved around the application of sections 47 and 49 of the *Civil Liability Act 1936* (SA), which presume contributory negligence in certain circumstances.

The High Court was required to determine two main legal issues. Firstly, whether the exception to the presumption of contributory negligence under section 47(2)(b) of the Act applied, meaning Ms Chadwick could not reasonably have been expected to avoid the risk of travelling with an intoxicated driver. This involved considering the proper construction of section 47(2)(b) and the relevance of Ms Chadwick's subjective characteristics and her capacity to make a reasonable assessment of the risks. Secondly, the Court had to consider whether Ms Chadwick's failure to wear a seatbelt constituted contributory negligence under section 49 of the Act, and whether the appellant's erratic driving prevented her from fastening it, potentially invoking the "act of a stranger" defence.

The High Court found that the trial judge had erred in his construction of section 47(2)(b) by focusing on whether Ms Chadwick had "no choice" but to travel with the intoxicated driver, rather than on whether she could reasonably have been expected to avoid the risk. The Court clarified that the exception requires an objective assessment of whether a reasonable person in Ms Chadwick's position could have avoided the risk, taking into account her subjective characteristics. While the trial judge's factual finding that Ms Chadwick did not know her location was not disturbed, the Court held that this did not automatically mean she could not reasonably have been expected to avoid the risk. The Court also addressed the seatbelt issue, noting the trial judge's finding that Ms Chadwick had lied about the seatbelt mechanism being inoperable, but that her evidence regarding the driver's erratic driving preventing her from fastening it was accepted.

The High Court allowed the appeal in part, setting aside the orders of the Full Court of the Supreme Court of South Australia. The Court varied the damages awarded to Ms Chadwick, reducing the amount from $1,387,888.87 to $1,223,287.74, reflecting a revised assessment of contributory negligence. The appellant was ordered to pay the respondent's costs of the appeal to the High Court.