O'Sullivan v Barker J A Judge of the Federal Court of Australia & Ors

This matter concerned an application by Mr O’Sullivan for an order to show cause, seeking to set aside two decisions made by Justices Barker and McKerracher of the Federal Court of Australia. Mr O’Sullivan appeared in person before a judge of the High Court of Australia. The dispute centred on whether the Federal Court judges had the jurisdiction to entertain appeals from decisions of the Administrative Appeals Tribunal, particularly concerning the interpretation and application of section 44 of the Administrative Appeals Tribunal Act, which limits appeals to questions of law.

The primary legal issue before the High Court was whether Justices Barker and McKerracher had jurisdiction to make the decisions Mr O’Sullivan sought to have set aside. Mr O’Sullivan contended that the decisions were not based on a proper question of law, rendering the judges without jurisdiction to hear the appeals or make any orders. He argued that the Federal Court had made preliminary decisions rather than final determinations, and that the points raised in Justice McKerracher’s decision were prejudicial to his case before the Administrative Appeals Tribunal.

The High Court judge acknowledged Mr O’Sullivan’s submissions, including his argument that the Federal Court lacked jurisdiction and that certain comments in Justice McKerracher’s decision, referencing a case called *Palassis v Commissioner of Taxation*, were misattributed and prejudicial. The judge indicated that she had read Mr O’Sullivan’s affidavit and outline of submissions and would consider the matter further, promising to publish a judgment addressing the raised issues. The judge explained that the Federal Court's prior decisions were based on a preliminary question, not a final determination, and that the substantive issue of Mr O’Sullivan’s entitlement to claim against P&O Maritime Services remained live before the Administrative Appeals Tribunal.