11 We agree generally with that approach except we will rule separately on the question of the summons. We consider that the resolution of this procedural application should be also undertaken in conformity with the well-settled principles of this Court as to the hearing of strike-out motions raising jurisdictional or other preliminary issues: see, for example, Nagle (T/as W D and J L Nagle & Sons) v Tilburg & Anor (1993) 51 IR 8. Clearly, the issues need to be assessed in the light of the particular circumstances here applying, where the underpinning primary application concerns an application to re-open appeal proceedings.
12 On the present state of the authorities we consider the appellants have at least an arguable case that the Court does not have jurisdiction to re-open the appeal in the manner proposed by the respondents. It should be emphasised, however, that at this stage we put the appellants' case no higher than arguable. It seems to us that the circumstances in which the re-opening is sought are different in a number of respects to the circumstances that existed in Ove Arup Pty Ltd v WorkCover Authority (NSW) (Inspector Mansell) (2005) 141 IR 78, Hollingsworth v Commissioner of Police (2007) 160 IR 456 and Valda June Kerrison v New South Wales Technical and Further Education Commission [2007] NSWIRComm 140, authorities relied upon by the appellants in their application to have the present program vacated, and that other considerations may be relevant. Having said that, we note the appellants' alternative submission that the Court would not, in any event, exercise its discretion to re-open the appeal because it could not be demonstrated that there existed an irremediable injustice. Again, we think this contention is arguable upon the basis that it is contended there is no material provided to justify re-opening the appeal judgment because the respondents have available to them an alternative remedy in the substantive proceedings.
13 Given the existence of at least an arguable case regarding the jurisdictional issue and, given that the procedural approach contended by the appellants is the one that is most likely to facilitate the just, quick and cheap resolution of the issues in these proceedings, we consider the appropriate course is to vacate the present program and to make directions for the purpose of hearing the appellants' motion on 31 July 2007.
14 We particularly have in mind, in this respect, that the resolution of the jurisdictional issue, and the related consideration of the exercise of a discretion to re-open, would be determined upon the evidence brought by the respondents taken at its highest, as opposed to evidence to be adduced by the appellants in reply in the case to re-open. Whilst we accept that the parties may reach an accommodation to permit the appellants to go into evidence in that way (notwithstanding the information barrier erected by our earlier orders), we are not confident that those arrangements may not, even inadvertently, result in some potential erosion of those barriers and the undertakings given by solicitors as a consequence of them. This is not to say that those matters may not need to be grappled with if the proceedings are to be re-opened, but that it is a balancing factor in favour of granting the appellants' procedural application. It is also a factor in favour of that application in terms of time and cost. We also consider these factors weigh against the approach agitated by Mr Newall of counsel for the respondents that we could consider both jurisdictional issues and issues associated with the application to re-open in a combined proceeding.
15 This will mean that we will stand over the respondents' amended notice of motion pending determination of the appellants' motion. It will also mean that it becomes unnecessary to rule on the issues arising in relation to the summons to produce, save as earlier noted, and the appellants' application to vary the confidentiality undertakings filed with the Court, at least until the appellants' notice of motion is determined. We have also determined to refuse leave to the respondents to pursue their summons to produce of 18 June for the purposes of hearing the appellants' motion of 26 June as to the jurisdictional and related issues.
16 Accordingly, we make the following orders: