The Registrar's decision
13 It is worth recording that the Registrar accepted the principle that a subpoena might properly be used to identify an additional respondent whose identity is unknown but whose description is relatively clear and well understood: see Friends of Elliston-Environment & Conservation Inc v State of South Australia (No 2) [2007] SASC 325 (Bleby J); Singh v Observer Ltd [1989] 2 All ER 751. This would include to identify a party who has funded a proceeding for the purposes of a non-party costs application: see Friends of Elliston at [5]-[6] and [32]. However, the Registrar considered there to be no legitimate forensic purpose to a subpoena which sought to identify the nature or extent of the interest (if any) that anyone might have had in the Land, the mortgages or any other transactions which were the subject of the Court's reasons or judgment in Rathner.
14 A reference to the non-party costs application against the Santini Parties in the Registrar's reasons is to be understood as a reference to Mt Duneed's application for the relief set out in paragraph [7] of the amended interlocutory application dated 6 July 2023, namely that:
Runner, Santini Group Pty Ltd, and Mr Jason Hopp pay Mt Duneed Investments Pty Ltd's costs of and incidental to the proceedings to date (inclusive of the costs of the dismissed Second Cross-Claim and the costs of the interlocutory application) on an indemnity basis, such costs to be taxed forthwith.
15 Since the hearing before the Registrar, however, Mt Duneed has amended this interlocutory application again, meaning that the relevant interlocutory process for present purposes is the further amended interlocutory application filed on 25 January 2024 (which amended the interlocutory application filed on 27 June 2023 and amended on 6 July 2023). A reference to the non-party costs application is now to be understood as a reference to the relief sought in paragraph [8] of the further amended interlocutory application:
Each of Runner, Mr Hopp, Santini Group, Mr Chow, Blast Financial and Ms Loh pay Mt Duneed Investments Pty Ltd's costs of and incidental to the proceeding to 5 July 2023 (inclusive of the costs of the dismissed Second Cross-claim) on an indemnity basis fixed on a lump sum basis and payable forthwith.
16 In broad terms, Mt Duneed has sought the relief in the non-party costs application on the basis of an argument that Runner, Mr Hopp, Santini Group, Mr Chow, Blast Financial Pte Ltd and Ms Loh either benefitted from or were involved in the transfer of the Land from Runner (as mortgagee in possession) to South Reeve for a price of $4,820,000 (the Sale); settlement of that transaction having occurred on 9 June 2023. The Sale occurred in circumstances where the Court's judgment in the proceeding commenced on 8 October 2021 was reserved on 29 September 2022.
17 In summary, the Registrar upheld those subpoenas (or parts thereof) in respect of which she considered it was reasonable to expect that they sought evidence that might be adduced on the hearing of the non-party costs application against the Santini Parties, and which were sufficiently clear and intelligible.
18 The Registrar set aside some subpoenas (or parts thereof) that she regarded as, in substance seeking information that could only be relevant to the proceedings that are yet to be filed relating to fraud and/or abuse of process (for example, whether the lawyers involved in the Sale had sufficient knowledge to be "knowingly involved" in the relevant conduct).
19 The Registrar also set aside some subpoenas (or parts thereof) that she regarded as vague or which seemed likely to produce a preponderance of irrelevant material.