You can issue a claim against a debtor based in Scotland in exactly the same way as against one based in England - with one proviso: there must be no existing proceedings concerning the same claim in another court. You must include a statement on the claim form to this effect. If the claim is against a business, you can choose in which court to issue it.
As with a debtor based in England (see question 14), you need to consider carefully before you start the extent to which the debtor will be able to satisfy any judgement, and how much you will have to expend in time and money if you have to enforce it. This is particularly the case if the debtor's assets are in Scotland. If you obtain a judgment against him (or her), you will be able to register it in the High Court and enforce it as if it were a judgment from a Scottish court, but Scottish law, procedure and enforcement differ from English, so the business will be time-consuming and expensive, and may have practical difficulties.