From: Neil Foster <neil.foster@newcastle.edu.au>

Sent: Wednesday 10 June 2026 03:21

To: obligations@uwo.ca

Subject: ODG: HCA on liability for false imprisonment under mistaken view of law

 

 

Dear Colleagues;

The decision of the High Court of Australia handed down today in Abdel-Hady v Commonwealth of Australia [2026] HCA 17 (10 June 2026) reaffirms the principle that it is no defence to an action for false imprisonment by a government official that they reasonably thought they were complying with the law.

The background is that Mr Abdel-Hardy is a non-citizen who would have been subject to deportation, except that circumstances (here a health condition) meant that there was no real prospect of his removal from Australia becoming practicable in the reasonably foreseeable future. A prior decision of the High Court had held that his detention was still justified in those circumstances (Al-Kateb v Godwin (2004) 219 CLR 562); but the more recent decision of NZYQ v Minister for Immigration, Citizenship and Multicultural Affairs (2023) 280 CLR 137 had over-ruled this. Hence Mr Abdel-Hady's detention was now known to have been invalid from the date it was known that he could not practicably be removed until the date of the decision in NZYQ. He is suing the Commonwealth for false imprisonment for that period.

All 7 members of the court agree that his action should succeed, and that neither the Commonwealth nor their officers have a valid defence to the action for false imprisonment. They agree with the similar persuasive decision of the UK House of Lords in R v Governor of Brockhill Prison; Ex parte Evans [No 2] [2001] 2 AC 19 (itself following a decision of the NSW Court of Appeal in Cowell v Corrective Services Commission of New South Wales (1988) 13 NSWLR 714.)

One of the Commonwealth's key arguments was that this case was analogous to the decision of the High Court in Queensland v Stradford (a pseudonym) (2025) 99 ALJR 396; 421 ALR 376 , where it was held that imprisonment of the plaintiff by court officers acting under judicial orders did not give rise to civil liability. There are interesting discussions of Stradford and some difference of opinion within the court as to the basis for that decision, but in the end all the court here agree that for constitutional and separation of powers reasons, an immunity from suit should attach to officers executing court orders, which does not attach to public servants acting on their own view of the law. Perhaps where some will see this as very stark in cases like this, where the public servants were acting in direct reliance on the High Court decision in Al-Kateb. But as the members of the court here all agree, the ultimate source of authority for detention had to be found in legislation, and the High Court has the power to over-rule its own previous interpretation of the legislation. (Authorities from the US and Canada taking a different view were mentioned, but in the end ruled not to be persuasive given the differing constitutional arrangements in place in Australia.)

Edelman J differs to some extent from the other members of the court (though there are 5 separate judgments, so his Honour was not the only member of the court to offer his own perspective.) The question is whether it was necessary to consider two possible different rationales for liability- either 'direct' liability where the public servants could be seen as true 'agents', or vicarious liability (accepting the analysis of the three different types of 'strict' liability accepted in Bird v DP.) Most of the court simply noted that the Commonwealth had conceded vicarious liability; Edelman J seemed to think that agency liability was the more correct analysis. But in the end this did not make a difference to the outcome.

The Commonwealth had in broad terms accepted that they could not succeed on the existing law, and had tried to argue for the development of a 'novel' defence applying in very limited circumstances. But as the members of the court generally noted, the limits of the Commonwealth's suggested defence were uncertain and inconsistent with general principle. To quote the plurality (Gageler CJ, Gleeson & Beech-Jones JJ): 

 

[7] No such common law defence should be recognised. No development of the common law can be inconsistent with constitutional principle. Far from protecting the judicial declaration of the law and enhancing the responsibility of the executive branch of government to ascertain the law that limits its own power and to comply with that law, as the Commonwealth argues, recognition of the propounded common law defence would subvert the accepted foundational constitutional principles of judicial authority and executive responsibility. It would transform the responsibility of an officer of the executive government of the Commonwealth to ascertain and comply with the law that limits the power of the officer into a common law immunity from a common law consequence of action which has subsequently been judicially determined to have transgressed such a legal limit and therefore to have exceeded that power. (emphasis added)

 

Regards

Neil

 

NEIL FOSTER

Associate Professor, Newcastle School of Law and Justice

College of Human and Social Futures

T: +61 2 49217430

E: neil.foster@newcastle.edu.au

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