One kingdom, three legal systems
England and Wales, Scotland, and Northern Ireland each run their own courts, their own procedure and their own service rules. The CPR stops at the border; Scotland's sheriff courts and Court of Session follow Scottish rules of citation, and Northern Ireland's courts follow the Rules of the Court of Judicature and county court rules.
Helpfully, serving an English or Welsh claim form in the other two jurisdictions rarely needs the court's permission. Under CPR rule 6.32, where the English court has jurisdiction under the Civil Jurisdiction and Judgments Act 1982 and no parallel proceedings are pending elsewhere in the UK, you may serve in Scotland or Northern Ireland as of right, filing form N510 with the claim form to certify the grounds.
What changes is everything downstream: who physically serves, what counts as valid delivery, when the defendant must respond, and what document proves it all. That is the rest of this guide.
