Goodsell v Murphy

In *Goodsell v Murphy*, the New South Wales Court of Appeal considered a claim for damages arising from a motor accident. The plaintiff, who had a pre-existing history of heroin dependency, alleged that the negligence of the defendant in causing the accident led to a relapse into heroin addiction, thereby diminishing his earning capacity.

The central legal issues before the Court of Appeal were whether the plaintiff had established causation between the defendant's negligence and the relapse into heroin addiction, and if so, whether the trial judge had adequately taken into account the plaintiff's predisposition to heroin abuse when assessing damages for economic loss, specifically the diminution of earning capacity. The Court also considered the application of section 70A of the *Motor Accidents Act 1988* (NSW).

The Court analysed the evidence concerning the plaintiff's heroin use prior to and following the accident. It applied the principles of causation in negligence, requiring the plaintiff to prove on the balance of probabilities that the accident was a necessary cause of the relapse. The Court examined whether the plaintiff's pre-existing vulnerability to heroin addiction was a factor that the trial judge had properly considered in assessing the quantum of damages, particularly in relation to future economic loss and the plaintiff's diminished prospects for employment.

The Court of Appeal made orders in relation to the appeal, the specifics of which are detailed in paragraphs 60 and 61 of the judgment.