Aldous v State of New South Wales

Aldous brought an appeal against the State of New South Wales in the Supreme Court of New South Wales, Court of Appeal, challenging a decision that he was liable to repay a partial and permanent disability benefit. The matter arose from a Deed of Release executed by the parties. The key issue for the Court was whether the appellant was released from his obligation to repay the benefit under the Deed. The Court also considered whether the Anshun estoppel applied, preventing Aldous from raising the issue as it had not been previously raised in earlier proceedings in the District Court and the Court of Appeal.

The Court held that the obligation to repay the benefit did not fall within "the matters the subject of this Deed" and therefore the appellant was released from that obligation. The Court found that the obligation to repay was not within the scope of the Deed, which only addressed the appellant's entitlement to certain benefits. The Court also found that the Anshun estoppel did not apply as the issue had not been raised in the previous proceedings, and even if it had been, it would not have been appropriate to apply the estoppel in this case. The Court found that the obligation to repay was not a matter that was necessarily involved in the previous proceedings, and that it was not appropriate to apply the estoppel in circumstances where the appellant had no real opportunity to raise the issue.

The Court allowed the appeal and set aside the decision of the District Court. The Court found that the appellant was not liable to repay the benefit and that the Deed of Release released him from that obligation. The Court found that the Anshun estoppel did not apply and that the appellant was not estopped from raising the issue in the current proceedings. The Court ordered that the matter be remitted to the District Court for further consideration in light of the Court's decision.