International and Cross-Border Defamation: UK Jurisdiction Rules

In an interconnected world, defamatory content published in one country can cause harm across borders. Cross-border defamation raises complex questions about jurisdiction, applicable law, and enforcement of judgments — questions that require specialist legal expertise.

When Does a UK Court Have Jurisdiction?

The starting point is that UK courts have jurisdiction over defamation claims where the defamatory statement was published in England and Wales. For online content, "publication" occurs where the content is downloaded and read, not where it was uploaded. This means that content published on a foreign website but accessed in the UK can give rise to a UK claim.

However, the Defamation Act 2013 introduced restrictions. Section 9 provides that a court does not have jurisdiction to hear a defamation claim against a person domiciled outside the UK, an EU member state, or a Lugano Convention state unless the court is satisfied that "of all the places in which the statement complained of has been published, England and Wales is clearly the most appropriate place in which to bring an action."

The "Most Appropriate Place" Test

In applying this test, courts consider several factors:

• Where the claimant's reputation is primarily based
• Where the majority of the harm occurred
• The extent of publication in England and Wales compared to other jurisdictions
• Whether the claimant has a real and substantial connection to England and Wales
• The practical enforceability of any judgment

This test was designed to prevent "libel tourism" — the practice of claimants choosing the UK as a forum for claims with little genuine connection to the jurisdiction. It means that claimants with primarily overseas reputations may struggle to bring claims in the UK.

Applicable Law

Even where a UK court has jurisdiction, the question of which country's law applies can be complex. Under EU-derived rules (retained in UK law), the applicable law for non-contractual obligations (including defamation) is generally the law of the country where the damage occurred. For reputation claims, this is typically where the claimant is established or where the harm to reputation is concentrated.

Enforcing UK Judgments Abroad

Obtaining a UK judgment is only useful if it can be enforced. Enforcement in EU member states is relatively straightforward under the Brussels Regulation (as retained and modified post-Brexit). However, enforcement in the United States is particularly difficult — the SPEECH Act 2010 prevents US courts from enforcing foreign defamation judgments that would not be consistent with the First Amendment.

Practical alternatives to enforcement include targeting assets within the UK, pursuing platform-level remedies (content removal, account suspension), and seeking cooperation through international legal assistance mechanisms.

Strategic Considerations

Cross-border defamation cases require careful strategic planning from the outset. Key considerations include choosing the optimal jurisdiction, assessing the realistic prospects of enforcement, and balancing the costs of international litigation against the likely outcomes.

In some cases, it may be more effective to pursue platform-level remedies rather than litigation — particularly where the defamer is in a jurisdiction that makes enforcement impractical. Our online defamation team can advise on the most pragmatic approach.

Contact us for a free case evaluation to discuss the jurisdictional aspects of your defamation matter.

Related reading: Anonymous online defamation | Removing defamatory content | Defamation in the digital age