The U.K.’s accession to an important European legal cooperation pact that would ensure the U.K. continues to get mutual recognition of court judgments now that it has left the EU is yet to be decided, raising questions about the future role of the U.K. judicial system in cross-border disputes.

The pact, known as the Lugano Convention, is an international treaty negotiated by the EU that clarifies which national courts have jurisdiction in cross-border civil and commercial disputes and ensures that judgments in such disputes can be enforced across borders. After Brexit, the U.K. is no longer a signatory, so there is no guarantee that British court judgments are recognized abroad.