THE NATURE OF THE DISPUTE
3 Howden are the owners of information they claim to be confidential relating to the design and construction of large scale industrial fans known as mixed flow fans. Mixed flow fans are used in the mining industry to ventilate mine shafts. Mr Bourcier was employed as Howden's senior design engineer. As such he had access to the information now claimed to be confidential. On 1 September 2016 Mr Bourcier left the employment of Howden and went to work for the First Respondent ('Minetek'). At the time that Mr Bourcier joined Minetek it did not produce mixed flow fans for mine ventilation. Five months after Mr Bourcier's arrival at Minetek, Minetek filed two provisional patent applications for mixed flow fans which named Mr Bourcier as the inventor. In mid-April 2019, one of Howden's engineers saw a fan on a website which bore the name 'Minetek' and took a photograph of it. Minetek calls this fan a 'high output axial fan'.
4 Howden was concerned that Mr Bourcier had taken its confidential information with him to Minetek and that Minetek's development of its high output axial fan had resulted from a misappropriation of its confidential information. It commenced proceedings in this Court on 27 May 2019 and obtained orders for short service of an application for an interlocutory injunction from Stewart J on that day. That application was heard by Jagot J on 7 and 17 June 2019 and dismissed by her Honour on 21 June 2019: Howden Australia Pty Ltd v Minetek Pty Ltd [2019] FCA 981 ('the Injunction Reasons').
5 Her Honour accepted at [31] that Mr Bourcier may have had access to Howden's confidential information whilst working for it but concluded that there was no evidence that he had taken any of that information with him. Her Honour was impressed by the fact that on the interlocutory injunction application evidence had been led from Mr Bourcier on affidavit in which he denied taking any of the information. Mr Bourcier's evidence about this in his first affidavit (dated 5 June 2019) was contained in [70]:
70. I deny any suggestion that I copied or transferred any document from my computer's C drive to any other storage device. I deny that I have any storage device or ever had any storage device containing any material from my Howden computer's C drive. I deny taking any information from the Howden offices. I deny the suggestion by Mr Mitchell and Mr Salvestro that the only way I could have developed the Minetek Mixed Flow Fan design was by using Howden confidential information that I took away with me when I left Howden's employment. That never happened.
6 Of this evidence, her Honour then said this at [31]:
31. In my view, the answer is no. It may be accepted that while working at Howden Australia Mr Bourcier had access to Howden's manuals in hard copy and also to all engineering drawings and the like stored on the R://drive. It may also be accepted on the evidence that Mr Bourcier was involved in the major project which ultimately led to substantial revisions to the Mixed Flow Fan Design Manual. There is no evidence of (and Mr Bourcier denies) taking any of this information with him when he left Howden. More relevantly still, there is no evidence that any information defined in sub paragraphs (c) or (d) of the definition of the Howden Confidential Information has been used in any way in the design of the Minetek fan. The evidence, such as it is, is confined to the alleged use of information from the Mixed Flow Fan Design Manual which, in turn, refers to the defined parts of the General Design Manual. This is important, as will become apparent below.
7 The reference to Mr Bourcier's evidence in [31] was not fleeting or tangential. It is apparent that her Honour placed considerable reliance upon it in reaching the conclusion that interlocutory relief should be refused. For example, her Honour also observed at [37] and [39] as follows:
37. Sixth, while an interlocutory application is not a trial within a trial, there is evidence from Mr Bourcier that he did not use any Howden information in the design of the Minetek fan and he gives a detailed description of how he did design that fan using standard texts, software and his own knowledge in the time it took which he said was plainly not impossible. The fact that he exhibited a confidential report of the design process rather than providing his original workings does not support the drawing of any adverse inference against the weight of his categorical denial of taking anything from or using anything of Howden's in his design of the Minetek fan.
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39. If, contrary to my view, Howden has established a prima facie case, it would be at the weak end of the scale. The balance of convenience does not necessarily favour Howden as it appears to have assumed. In particular, it seems to have assumed that its confidential information will be released by Minetek to third parties in the form of design drawings and instruction manuals. As best as I can understand Howden is assuming that Minetek's design drawings and instruction manuals will contain information from the Howden Confidential Information. However, there is no evidence to support this inference. Mr Bourcier says he has no such information. Mr Bird says he has never seen such information. The observations of some things in the Minetek fan being the "same as" or "similar to" the Howden fan does not mean that any part of the Howden Confidential Information appears in the Minetek design drawings or its instruction manuals. Howden's fear of the confidentiality of its confidential information being dissipated is based more on assumption than logical inference from the scant evidence on which it relies that the Minetek fan was designed using any part of the Howden Confidential Information.
8 The matter was then docketed to Robertson J and Howden set in train procedural steps to obtain discovery of Minetek's computer records to show that Mr Bourcier had indeed taken Howden's confidential information with him to Minetek and used it in the design of its mixed flow fan. Howden filed an application for discovery on 28 August 2019. The evidence in support of that application came from two of Howden's solicitors, Ms Owen and Ms Currey, its computer forensics expert Mr McKemmish and its aftermarket retrofit applications manager, a Mr Stack.
9 Mr Stack previously worked at Minetek from November 2017 to December 2018. The evidence of Mr Stack reflected efforts on the part of Howden to improve its evidentiary position in the aftermath of the hearing before Jagot J. Mr Stack's evidence was that whilst he had been employed by Minetek Mr Bourcier had given him an Excel spreadsheet which contained the file name 'RVC Calculations.xls'. The RVC Calculations.xls file is alleged by Howden to contain some of the confidential information which it relies upon in the main suit. In response, the Respondents elicited a second affidavit from Mr Bourcier dated 20 September 2019. At [19] of this affidavit Mr Bourcier denied what Mr Stack had said:
19. In response to paragraph 42 of the Stack Affidavit, I deny giving Mr Stack the spreadsheet he is referring to. This did not happen. I also deny Mr Stack's assertion that he and I went through a spreadsheet. I did not conduct any calculations with Mr Stack on any spreadsheet or any other document…
10 Substantial other evidence in opposition to the discovery application was also filed on 20 September 2019. Robertson J heard the application on 1 and 11 November 2019 and delivered judgment on 11 November 2019 granting some, but not all, of the relief sought by Howden: Howden Australia Pty Ltd v Minetek Pty Ltd (No 3) [2019] FCA 1851 ('the Discovery Reasons'). In short, his Honour required the Respondents to give standard discovery but declined at that time to make the Respondents submit to forensic examination of their electronic devices because he was not then persuaded that they would not comply with their discovery obligations. He did not, however, dismiss that aspect of the application but merely stood it over to a date to be fixed noting (at [16]) that 'imaging may in due course be appropriate'. He noted the debate between Mr Stack and Mr Bourcier but did not resolve it (at [12]).
11 Consequent upon the retirement from the bench of Robertson J, the matter was docketed to me and on 15 April 2020 I extended the time for the Respondents to give discovery and made related orders. The matter came before me on 29 June 2020 when it became apparent that Howden wished to pursue its claim for imaging because of what it submitted were deficiencies in the Respondents' discovery. I put in place a timetable for written submissions on the point with the matter to be determined on the papers. Both parties filed submissions with the last set of such submissions coming from the Respondents on 24 July 2020. Both parties were confined to 5,000 words for their submissions.