Treaty Coverage

The UK's Extradition Treaty Network

Brexit fundamentally changed how the UK's EU-facing extradition relationships work — understanding the new structure matters more than ever.

Direct answer: Since 1 January 2021, the UK's extradition relationship with EU member states runs through the Trade and Cooperation Agreement's Title VII surrender arrangements, not the old European Arrest Warrant. For non-EU countries, the UK relies on a network of bilateral treaties and multilateral conventions under the traditional Category 2 process. The absence of a named treaty is not the same as immunity from cooperation.

The Two Layers

How UK Coverage Is Actually Structured

TCA Surrender Arrangements

Covers all 27 EU member states plus Gibraltar, replacing the EAW since 1 January 2021, implemented via the European Union (Future Relationship) Act 2020.

Category 2 Bilateral Treaties

Non-EU countries proceed under the traditional Extradition Act 2003 framework, via specific bilateral treaties or arrangements.

Norway & Iceland

Following Brexit, Norway and Iceland were redesignated from Category 1 to Category 2 territories under UK law.

Beyond the Treaty Network

Where no treaty applies, cooperation is not automatically foreclosed, though it becomes considerably more case-specific.

Why This Matters

The Absence of a Treaty Is Not a Safe Harbor

INTERPOL Notices Still Apply

A Red Notice or Diffusion can still lead to detention and consequences well before any formal extradition request exists.

The TCA Includes Proportionality

Unlike the old EAW Framework Decision, the TCA explicitly requires surrender to be proportionate, considering less coercive alternatives.

Political Offence Considerations Shifted

Commentators have noted the political offence exception operates differently under the TCA than it did under the EAW.

Case-by-Case Review Needed

Treaty status and the applicable framework should always be verified for a specific situation rather than assumed from a general list.

Frequently Asked

Common Questions

Is the European Arrest Warrant still relevant to the UK at all?

Only historically \u2014 EAWs issued before 31 December 2020 in some circumstances are treated as arrest warrants under the new arrangements, but new requests proceed under the TCA.

Did Brexit make UK-EU extradition harder or easier?

The new TCA arrangements closely mirror the old EAW system in most respects, though with some acknowledged differences, including around the political offence exception.

Does this list ever change?

Yes \u2014 the UK continues to negotiate bilateral arrangements, so coverage should always be checked against your specific situation.