In brief. Extradition is the formal procedure by which one State surrenders an individual to another State so that the person may stand trial or serve a sentence there. In the United Kingdom the legal framework is the Extradition Act 2003, supplemented by bilateral treaties and — for EU Member States — the post-Brexit surrender regime under the Trade and Cooperation Agreement. ILA, an international criminal-law firm based in Italy, assists requested persons across multiple jurisdictions and, in UK proceedings, works alongside UK counsel who appear before the Westminster Magistrates’ Court.

In short

  • Extradition is governed in the UK by the Extradition Act 2003 (EA 2003)
  • The Act distinguishes Part 1 territories (EU Member States, post-Brexit surrender) and Part 2 territories (other treaty partners and designated countries)
  • In England and Wales, the Westminster Magistrates’ Court is the court of first instance for extradition cases (Scotland and Northern Ireland have their own designated courts)
  • Statutory bars to extradition include double jeopardy, passage of time, extraneous considerations, human rights and disproportionate punishment
  • Appeals lie to the High Court and, with permission, to the UK Supreme Court

What is extradition

Extradition is the lawful surrender of a person from a requested State to a requesting State on the basis of an international agreement or domestic statute, so that the person may be prosecuted for a criminal offence or serve a sentence already imposed. It is a procedure of international cooperation, governed by treaty and statute, and is distinct from informal removal, deportation and rendition.

Extradition rests on three pillars: an international legal basis (a treaty or convention), a domestic statute that gives effect to the request (in the UK, the EA 2003), and judicial control over the request (in England and Wales, the Westminster Magistrates’ Court). Each pillar contributes to the legality of the surrender and to the protection of the requested person.

The principal UK statute is the Extradition Act 2003, which entered into force on 1 January 2004. It implements the European Arrest Warrant regime in Part 1 (replaced from 1 January 2021 by the post-Brexit surrender regime under Title VII of Part 3 of the EU-UK Trade and Cooperation Agreement) and bilateral and multilateral treaties in Part 2.

Key sections of the EA 2003 include:

  • Sections 7-21A (Part 1): initial procedural steps, bars to extradition, human-rights challenges, proportionality and forum
  • Sections 69 and following (Part 2): designated Part 2 territories, including the United States, Australia, India
  • Sections 79-83A and 91 EA 2003 (Part 2): statutory bars (double jeopardy s. 80, extraneous considerations s. 81, passage of time s. 82, forum s. 83A, physical or mental condition s. 91)
  • Section 21 / 87 EA 2003: human-rights bar (ECHR compatibility)

At international level, key instruments are: the European Convention on Extradition 1957; the Trade and Cooperation Agreement between the EU and the UK (Title VII, Part 3) for surrender procedures with EU Member States; bilateral treaties with the US (2003), India (1992) and other Commonwealth and non-Commonwealth partners; the UN Model Treaty on Extradition as a reference instrument.

Extradition procedure under the Extradition Act 2003

Under the EA 2003, an extradition request triggers a structured judicial procedure that runs from the issuing of a warrant or request to the final order of surrender or discharge.

Initial steps. The request is certified by the appropriate authority (National Crime Agency for Part 1 cases; Secretary of State for Part 2 cases) and forwarded to the court (in England and Wales, Westminster Magistrates’ Court). The requested person is arrested under the warrant or the provisional arrest power and brought before the court within a short time-frame.

Initial hearing. The court verifies identity, fixes the date for the extradition hearing and decides on bail. Bail is granted as a rule unless one of the statutory grounds for refusal applies; risk of absconding is the most frequent ground in extradition cases, given the consequences of surrender.

Extradition hearing. The court examines the bars to extradition, the dual criminality requirement (where applicable), human rights compatibility (Article 3 prison conditions, Article 8 family life, Article 6 fair trial), and proportionality. The court issues an order for extradition or discharges the requested person.

Appeal. Appeals against extradition orders lie to the High Court within 7 (Part 1) or 14 (Part 2) days. Permission is required. A further appeal to the UK Supreme Court is available where a point of law of general public importance is certified.

ILA assists requested persons at every stage of this procedure together with UK counsel, and handles the Italian side of the case when Italy is the requesting State. For the meaning of “no extradition treaty” see our page on countries with no extradition treaty.

Bars to extradition and defence grounds

The EA 2003 sets out a structured catalogue of bars to extradition. The most frequently invoked are:

  • Rule against double jeopardy (section 12 for Part 1 / section 80 for Part 2 EA 2003) — the person has already been acquitted or convicted of the same offence
  • Extraneous considerations — the request is in fact made for the purpose of prosecuting or punishing the person on account of race, religion, nationality, gender, sexual orientation or political opinions
  • Passage of time — extradition would be unjust or oppressive by reason of the time that has passed since the alleged offence
  • Physical or mental condition — extradition would be unjust or oppressive
  • Human rights (section 21 / 87 EA 2003) — extradition would be incompatible with Convention rights, in particular Articles 3, 6 and 8 ECHR
  • Forum (section 19B for Part 1 / section 83A for Part 2 EA 2003) — extradition is barred where it would not be in the interests of justice, having regard to the possibility of prosecution in the UK
  • Proportionality (Part 1 only, section 21A EA 2003) — particularly relevant in EAW/surrender cases for minor offences

An experienced extradition lawyer in Italy will tailor the defence to the specific facts and to the bars most likely to succeed. Prison-conditions challenges under Article 3 ECHR are highly fact-sensitive: the evidence on the specific prison, assurances from the requesting State and ECtHR case-law on personal space (Muršić v Croatia, Grand Chamber, 2016) determine the strength of the argument.

Case examples

(Illustrative examples of typical situations, not referring to specific proceedings; the outcome always depends on the individual case.)

Case 1 — Article 3 prison conditions. A requested person resisted surrender under the post-Brexit regime on the basis of overcrowding in the receiving prison. The court examined the evidence on the specific prison and the assurances offered by the requesting State. ILA coordinated the evidence from the requesting State with UK counsel.

Case 2 — passage of time and re-established life in the UK. ILA assisted, alongside UK counsel, a requested person facing a US extradition request, which was opposed on passage-of-time grounds (section 82 Extradition Act 2003) and Article 8 ECHR grounds, given the person’s long residence in the UK, stable employment, family ties and rehabilitation. The defence built the case around the proportionality analysis, weighing the public interest in extradition against the disruption to a settled private and family life. The outcome turned on a fact-specific balancing exercise; the case illustrates how delay and re-established life can become decisive bars to surrender.

FAQ

What is extradition? Extradition is the formal surrender of a person from one State to another so that the person may face prosecution or serve a sentence. It is governed by treaty, statute and judicial control.

Which UK court hears extradition cases? In England and Wales, extradition cases are heard at first instance by the Westminster Magistrates’ Court (Scotland and Northern Ireland have their own designated courts). Appeals lie, with permission, to the High Court and, on a certified point of law of general public importance, to the UK Supreme Court.

What is the difference between Part 1 and Part 2 of the Extradition Act 2003? Part 1 governs surrender to EU Member States under the post-Brexit Trade and Cooperation Agreement (formerly the EAW). Part 2 governs extradition to designated treaty partners outside the EU (United States, Australia, India, etc.) and to non-treaty designated countries.

Can extradition be refused on human rights grounds? Yes. Section 21 (Part 1) and section 87 (Part 2) EA 2003 require the court to refuse extradition where it would be incompatible with the requested person’s Convention rights. The most frequently invoked Articles are 3 (prison conditions), 6 (fair trial) and 8 (family life).

How long does an extradition case last? There are no official average durations. Part 1 cases under the post-Brexit surrender regime are subject to tight procedural time limits; Part 2 cases are generally longer, in particular when the Secretary of State’s decision is challenged, and duration grows with each level of appeal.

Read also: our guide to extradition to and from Italy and the guide to the European Arrest Warrant.

About ILA

International Lawyers Associates is an international criminal-law firm with offices in Naples, Milan and Rome, directed by Avv. Alexandro Maria Tirelli, with over twenty years of experience. The firm specialises in cross-border criminal defence, including extradition, European Arrest Warrant, Red Notice challenges and international cooperation, and works with correspondent lawyers abroad, including UK counsel in English proceedings.

If you or a family member face an extradition request involving Italy, call or WhatsApp %%TEL%% (24/7, reply within one hour).

Contact ILA | Our extradition practice