“Save in cases where allegations of fact are demonstrably untrue or unsupportable, it is generally not appropriate for a defendant to dispute the facts alleged through evidence of its own. Doing so may well just show that there is a triable issue.”
“…What is meant is (i) that the claimant must supply a plausible evidential basis for the application of a relevant jurisdictional gateway; (ii) that if there is an issue of fact about it, or some other reason for doubting whether it applies, the court must take a view on the material available if it can reliably do so; but (iii) the nature of the issue and the limitations of the material available at the interlocutory stage may be such that no reliable assessment can be made, in which case there is a good arguable case for the application of the gateway if there is a plausible (albeit contested) evidential basis for it”
“(3) A claim is made against a person (“the defendant”) on whom the claim form has been or will be served (otherwise than in reliance on this paragraph) and— (a) there is between the claimant and the defendant a real issue which it is reasonable for the court to try; and (b) the claimant wishes to serve the claim form on another person who is a necessary or proper party to that claim.” (a) there is between the claimant and the defendant a real issue which it is reasonable for the court to try; and (b) the claimant wishes to serve the claim form on another person who is a necessary or proper party to that claim.”