“The Guy Parties will not without the permission of the Court use any information obtained as a result of this Order for the purpose of any civil or criminal proceedings, either in England and Wales or in any other jurisdiction, other than in the Possession and the Eviction Proceedings.”
“it is not for [the respondent to the application for permission] to advance reasons why the implied undertaking should not be released but rather for the [applicants for such permission] to demonstrate cogent and persuasive reasons why it should be released.”
“I do not, for my part, think that it would be helpful to review these authorities for they are no more than examples and they illustrate no general principle beyond this, that the court will not release or modify the implied undertaking given on discovery save in special circumstances and where the release or modification will not occasion injustice to the person giving discovery. As Nourse LJ observed in the course of his judgment in the instant case (ante, p.840G), each case must turn on its own individual facts. In the instant case, the determinative point to my mind is that it is purely adventitious that there happened to be two actions.”
“66. The general principles which emerge are clear: i) The collateral purpose rule now contained inCPR 31.22 exists for sound and long established policy reasons. The court will only grant permission under rule 31.22 (1) (b) if there are special circumstances which constitute a cogent reason for permitting collateral use. ii) The collateral purpose rule contained in section 9 (2) of the 2003 Act is an absolute prohibition. Parliament has thereby signified the high degree of importance which it attaches to maintaining the co-operation of foreign states in the investigation of offences with an overseas dimension. iii) There is a strong public interest in facilitating the just resolution of civil litigation. Whether that public interest warrants releasing a party from the collateral purpose rule depends upon the particular circumstances of the case. Those circumstances require careful examination. There are decisions going both ways in the authorities cited above. iv) There is a strong public interest in preserving the integrity of criminal investigations and protecting those who provide information to prosecuting authorities from any wider dissemination of that information, other than in the resultant prosecution. v) It is for the first instance judge to weigh up the conflicting public interests. The Court of Appeal will only intervene if the judge erred in law (as in Gohil) or failed to take proper account of the conflicting interests in play (as in IG Index).”
“53. The message of the cases, echoing down from Crest Homes and even before then, is that the discretion is to be exercised by reference to all the circumstances as they appear to the court whose permission is sought, and on the basis that it is for the applicant to show that the public interest in making the documents available outweighs the public interest in honouring the promise of privacy which the rules reflect. Careful observance of the restrictions against collateral use, and circumspection accordingly in permitting any departure from them, is important in encouraging compliance with fundamental obligations in contested English proceedings of full and proper disclosure (including of confidential material, save in exceptional circumstances) and the exchange of witness statements which to a greater or lesser extent provide a glimpse behind the curtain into the other side's brief.”
“25. I apply the general principles identified by Jackson LJ in his judgment in Tchenguiz [v Serious Fraud Office[2014] EWCA Civ 1409 , [66]]. I accept that the collateral purpose rule exists for sound and long-established policy reasons. I accept that the court will only grant permission if there are special circumstances which constitute a cogent reason for permitting collateral use, and that whether the public interest warrants releasing a party from the collateral purpose rule depends upon the particular circumstances of the case and those circumstances require careful examination.”
“32. … The proceedings in issue are not just related, but unusually, the evidence in the two proceedings goes to one central narrative, the sale of the shares, which happened in the same period for both proceedings. The overlap or potential overlap and relevance of the evidence could not be clearer or closer.”
“the court will not release or modify the implied undertaking given on discovery save in special circumstances and where the release or modification will not occasion injustice to the person giving discovery,” and it is for “the [applicants for such permission] to demonstrate cogent and persuasive reasons why it should be released”
“60. On the basis of these authorities it seems that: i) Absent some provision in the relevant order, doing anything other than realising, in the course of review for the purposes of the proceedings in which documents are disclosed, that a document or documents would be relevant to other proceedings actual or contemplated, may constitute a collateral use. ii) The best course is therefore to seek permission for collateral use to review as soon as the issue is identified. iii) It would then be necessary to apply for permission for collateral use to deploy the documents if a (permitted) review concluded that it was desirable to use them.”