Focus Metals Pty Ltd v Babicci

Focus Metals Pty Ltd brought proceedings against Babicci, seeking restitution of funds paid under a mistake of fact. The dispute arose from a contract between the parties for the supply of goods, where the plaintiff overpaid the defendant by mistake. The case was heard in the Federal Circuit Court of Australia. The central legal issues were whether the defendant was enriched at the plaintiff’s expense, and if so, whether the defendant was liable to make restitution. The plaintiff argued that the defendant was unjustly enriched, and that the defendant held the money on a constructive trust for the plaintiff.

The court examined the nature of the mistake and whether it was unilateral or bilateral. The court found that the overpayment was due to a unilateral mistake of fact made by the plaintiff. It was further determined that the defendant had not acquired any proprietary interest in the funds, and thus, the defendant was enriched at the plaintiff’s expense. The court considered whether the defendant had the requisite knowledge of the mistake at the time of receipt, which would be necessary to impose a constructive trust. The court found that the defendant did not have the requisite knowledge, and therefore, a constructive trust was not applicable. The court also examined the defendant’s defences of “No Mistake” and “Change of position”. The court found that the defendant’s defences were not successful.

The court ordered that the defendant return the overpaid amount to the plaintiff, with interest from the date of payment. The court further found that the defendant’s defences were not available to them, and thus, the defendant was liable for the amount overpaid. The court emphasised the importance of the defendant’s lack of knowledge of the mistake at the time of receipt, and the absence of any change of position by the defendant. The decision reinforces the principle that a payee who receives money by mistake must return the amount, absent any successful defences.