Lugano Convention
Article 38
Untitled
1. A judgment given in a State bound by this Convention and enforceable in that State shall be enforced in another State bound by this Convention when, on the application of any interested party, it has been declared enforceable there.
2. However, in the United Kingdom, such a judgment shall be enforced in England and Wales, in Scotland, or in Northern Ireland when, on the application of any interested party, it has been registered for enforcement in that part of the United Kingdom.