My conclusion
22 The primary judge recognised, as the Director-General submits, that a claim of a novel cause of action does not immunise a party from summary dismissal of that claim. Observations in authorities such as Perera v Genworth Financial Mortgage Insurance Pty Ltd [2017] NSWCA 19; 94 NSWLR 83 at [32] do not convey any wider proposition. What observations in cases like Minister for the Environment v Sharma [2022] FCAFC 35; 291 FCR 311 recognise however (see especially at [4], [211]-[213], [246] (Allsop CJ); [352]-[356], [362], [546], [580], [603], [633] (Beach J); [777] and [783] (Wheelahan J)) is that the common law is organic and developing. The proposition that a cause of action in negligence (see especially the observations of Beach J at [546] in Sharma) in a particular situation, or in respect of particular statutory powers (as here), has not yet been recognised does not foreclose the development of the common law in a way that might vindicate the arguments being made.
23 In State of New South Wales v Spearpoint [2009] NSWCA 233 at [31], Beazley JA said:
An application for summary dismissal is an extreme measure. It forever shuts a plaintiff out of an alleged claim. There is no case in Australia which says that a police officer is immune from suit in the sense that a police officer never can owe a duty of care. Although, as Allsop ACJ indicated during the course of argument, the cases may be rare where a duty of care is found, it was not established on this case that there could be no duty of care owed.
24 And see Fuller-Wilson v State of New South Wales [2018] NSWCA 218 at [12]:
[T]he primary judge was correct to conclude that the pleaded case would be dismissed in accordance with current authority. However, it is open to the appellants to argue, on reasonable grounds, that the common law in Australia should recognise a wider scope of liability. In that circumstance the better view is that the proceedings should not have been summarily dismissed.
25 Consistently with opinions of this kind, the primary judge has done no more than conclude that the respondent's framing of a duty of care owed by the Director-General in the making of security assessments under the ASIO Act was sufficiently arguable to survive a summary dismissal application. In circumstances where there has been no consideration of this legislative scheme in that common law context, especially given that exercises of power under this scheme may result - as they did here - in the deprivation of liberty of an individual for substantial periods of time, there was no error in his Honour's conclusion that this issue is best determined after a full trial.
26 On the leave application, both parties' submissions descended into considerable detail, including by reference to Australian and comparative authorities, about why no such duty should be recognised, or why it should. Those will be matters for trial, and I say no more about them. The points made on each side of the Bar table were cogently made. This is a situation where the respondent's allegations of a novel duty have been carefully framed, with a close eye to existing authorities and the development of the law that would be required. They are not mere assertions, and they are properly pleaded; the Director-General did not suggest otherwise. Cf Knowles v Commonwealth of Australia [2022] FCA 741 at [243]-[244], [271]-[272]. I also accept the respondent's submissions that at this point in the proceeding, it is not possible to say that factual matters will play no role in determining whether such a duty of care exists. The factual context may be relevant: see Sharma at [19]-[42], [207] (Allsop CJ); [777] (Wheelahan J).
27 As to the judicial review application, his Honour took what I consider to be an orthodox approach to the question of utility. The grant of declaratory relief is a discretionary power, to be exercised by the Court upon full consideration of all the circumstances of the case. The Director-General's submissions at least implicitly accepted that the judicial review grounds, in terms of the invalidity of the first and second ASAs, had good prospects of success. That is why there was the focus on relief by the Director-General, rather than on invalidity. The respondent will, at the appropriate time, have an opportunity to adduce evidence about how he contends his interests have been affected, or may be affected in the future, by the first and second ASAs, notwithstanding the subsequent change of opinion by the Director-General. The primary judge provided what I consider with respect to be sensible examples of how an individual's interests might be affected. The respondent was not required to go into evidence on such matters at this point in the proceeding, in order to rebut the Director-General's interlocutory application. The Director-General bore the onus of proof.
28 To mention such possibilities is not "speculation" in the sense that term was employed by senior counsel for the Director-General. Judges engaging in "speculation" in terms of fact finding might properly be the subject of criticism after a full trial, and completion of the forensic process of adducing evidence, where the ordinary principles about drawing of inferences could not be called in aid. At this point in a proceeding, it is difficult to see what else the primary judge could do but consider reasonable factual examples of how the first and second ASAs might affect the respondent's interests. He was invited to do that by the character of the Director-General's challenge to utility. There was no error in the approach his Honour took, nor in the conclusion that the Director-General had not discharged the burden of proving there was no reasonable prospect of the Court granting declaratory relief on the judicial review application.