The Civil Procedure Rules 1998

[F1Service of the claim form where the permission of the court is requiredE+W

6.36.  In any proceedings to which rule 6.32 or 6.33 does not apply, the claimant may serve a claim form out of the jurisdiction with the permission of the court if any of the grounds set out in paragraph 3.1 of [F2Practice Direction 6B] apply.]