“The governing law, which is here English, is in general terms a positive factor in favour of trial in England, because it is generally preferable, other things being equal, that a case should be tried in the country whose law applies. However, that factor is of particular force if issues of law are likely to be important and if there is evidence of relevant differences in the legal principles or rules applicable to such issues in the two countries in contention as the appropriate forum …” (The judgments in this case were delivered after the hearing before me, but at my invitation counsel submitted written comments on the judgments.) Lord Mance’s observation was obiter, but Mr Collett submitted that it presents a “synthesis” of the approach of the Court of Appeal in Seashell Shipping Corp v Mutualidad e Seguros del Instituto Nacional de Industria (The “Magnum” ex “Tarraco Augusta”), [1989] 1 Ll L R 47, 53 and the High Court in such cases as Stonebridge Underwriting v Ontario Municipal,[2010] EWHC 2279 at paras 36, 37 and Golden Ocean v Salgaocar,[2011] EWHC 56 at para 143. I agree: these are cases where the parties had (expressly or impliedly) chosen English law and Lord Mance was considering a tort claim in deceit, but the passage that I have cited is, as I understand it, of general application and is, of course, from the leading majority judgment. But the fact that English law is the lex causae as a result of a choice made by Al-Riyadh makes it all the more important in identifying the proper forum. In The “Magnum” (cit sup) Parker LJ said “it would be unjust to the plaintiff to prevent him from proceeding in Courts where the result of his bargain would be to produce success and to force him to proceed in Courts where the result would or might be that the defendants escaped their bargain”
“Furthermore if the English court has jurisdiction over the merits against a party and this is invoked by the applicant then this in itself should suffice to make that party amenable to the English jurisdiction for the purpose of granting an anti-suit injunction in an alternative forum case. The injunction is granted ancillary to the exercise of jurisdiction over the merits and is not dependent on there being some formal act of submission to the jurisdiction by the respondent. This is the position for Mareva relief and it should also apply to injunction in alternative forum cases.”