Extradition Treaty Partners of the UK

Extradition Treaty Partners of the UK

Extradition is a legal process enabling countries to collaborate in the pursuit of justice by allowing the transfer of individuals accused or convicted of crimes across international borders. In the UK, this process is governed by the Extradition Act 2003, which delineates clear protocols for cooperation with other nations.

In this article, our UK extradition lawyers provide you with a clear and comprehensive overview of the UK’s extradition treaty partners, guided by the framework established under the UK Extradition Act 2003. We will explore the specific categories under which these extradition relationships fall, primarily divided into Category 1 and Category 2 territories as per UK legislation. Let’s get started.

The Basis of Extradition Law in the UK

The UK’s extradition law is a complex combination of international treaties and European and domestic statutes. The roots of the UK’s extradition framework can be traced back to the first extradition treaty with a foreign nation, established in 1794 with the United States – known as the Jay Treaty. The first domestic legislation in the UK was formed in 1870.

The domestic basis of the current extradition law is the Extradition Act 2003. This Act came into force on 1 January 2004. It was created to simplify and expedite the process of extraditing individuals in compliance with global crime and cooperation regulations.

Under the Extradition Act 2003, the UK’s extradition partnerships are categorised mainly into three types: Category 1, Category 2, and those under Section 193. Category 1 pertains to extradition to territories within the European Union, a process significantly influenced by the European Arrest Warrant system.

Category 2, on the other hand, deals with extradition requests from non-EU countries, with each case often reviewed on its merits and complexities. Finally, section 193 covers territories with which the UK has specific extradition arrangements, often based on mutual legal assistance treaties.

These categories underscore the UK’s commitment to international cooperation in combating crime while highlighting the complexities involved in navigating different legal systems and ensuring adherence to human rights standards.

UK Extradition: Category 1 Territory

Category 1 territories under the UK’s Extradition Act 2003 encompass various regions, including EU member states and specific territories like Gibraltar. The European Arrest Warrant Scheme (EAWS) significantly shaped the extradition process with these territories, which facilitated streamlined extradition procedures across the EU. 

However, post-Brexit, with the implementation of the UK-EU Trade and Cooperation Agreement (TCA) and the UK’s departure from the EU on 31 December 2020, the introduction of the Arrest Warrant (AW) succeeded the EAWS for the UK, maintaining a similar operational framework.

The territories falling under Category 1 are primarily European countries, including Austria, Belgium, Bulgaria, and others, along with unique cases like Gibraltar. The extradition process from the UK to these territories is relatively streamlined, entailing specific steps:

  1. A warrant is issued by the requesting state, often transmitted electronically, possibly via Interpol. This includes cases involving serious criminal offences, aligning with the Council of Europe’s standards on criminality. 
  2. The UK authority issues a certificate after applying a proportionality test, ensuring the request aligns with UK and EU legal standards.
  3. The arrest of the requested person follows, with an initial hearing leading to a more detailed extradition hearing. In urgent scenarios, provisional arrest can occur before receiving the warrant, adhering to human rights considerations like the right to a fair trial.

The National Crime Agency (NCA) plays an important role in Category 1 cases, serving as the central authority in managing these extradition processes. 

The UK courts, including potentially the High Court, oversee these proceedings, ensuring that each step of the extradition process, from the issuance of an Interpol red notice to the final decision, is conducted with due regard for legal and human rights standards. This includes assessing risks like prison conditions and the broader context of the European Convention on Human Rights.

UK Extradition: Category 2 Territory

Category 2 States include countries with which the UK maintains regular extradition relationships. This category includes nations bound by bilateral treaties or those that are signatories to the European Convention on Extradition 1957 or part of the London Scheme for Extradition within the Commonwealth.

A distinctive feature of extradition with Category 2 States is the necessity of prima facie proof of guilt. This contrasts with Category 1 territories, where such a requirement is typically not necessary. Another key difference is the involvement of the Executive branch of the UK government.

In Category 2 cases, the final decision on extradition requests rests with the home secretary, adding an additional layer of scrutiny to the process.

Category 2 States are divided into Types A and B. For Type A countries, there is no requirement to provide prima facie evidence supporting their extradition requests. In contrast, Type B countries are still required to present such evidence. 

Type A Category 2 States include a diverse range of countries such as Albania, Australia, Canada, Hong Kong SAR, Israel, New Zealand, Norway, South Africa, Switzerland, the United States of America, and others. 

On the other hand, Type B Category 2 States include nations like Algeria, Argentina, Bahamas, Bangladesh, Brazil, India, Jamaica, Kenya, Mexico, Nigeria, and many others. 

The extradition process with Category 2 States, irrespective of whether they fall under Type A or B, follows the below steps:

  1. The process begins when a requesting state submits an extradition request to the UK Secretary of State. This request must outline the allegations and the basis for seeking extradition.
  2. Upon receiving the request, the Secretary of State reviews it to determine its compliance with the requisite legal criteria. If the request is deemed valid, the Secretary of State certifies it, signifying that it meets the necessary standards for further consideration.
  3. Following certification, the case is referred to the court. This step ensures judicial oversight in the extradition process.
  4. The judge at the court reviews the case and decides whether to issue a warrant for the arrest of the person sought. This determination is established on the evidence and circumstances presented in the extradition request.
  5. Once the warrant is issued, the requested individual is captured and conveyed before the court. This marks the beginning of the person’s direct involvement in the extradition proceedings.
  6. At this stage, the court conducts a preliminary hearing to establish the framework for the extradition hearing. This includes setting dates and addressing any initial legal issues. At the extradition hearing, the court assesses whether the legal requirements for extradition are met, considering factors like the alleged offence, potential human rights issues, and the overall fairness of the extradition.
  7. Following the court’s decision, the case returns to the Secretary of State, who makes the final determination on whether to order the extradition. This decision considers the court’s findings and any other relevant diplomatic or legal considerations.

It may be possible to appeal the court’s decision for Category 1 and Category 2 territories. Both the individual and the requesting country can appeal a decision against them.

UK Extradition: Other Territories

For countries that do not fit into Category 1 or 2, the UK’s extradition process still offers a route under Sections 193 or 194 of the Extradition Act 2003. Under Section 193, the UK can engage in extradition with territories with which it shares a mutual treaty, even if they are not listed under Category 1 or 2.

Section 194 provides a framework for extradition on an ad hoc basis. This means the UK can handle extradition requests from territories without a standing extradition treaty or agreement. Such arrangements are typically one-off and tailored to the particular events of the request.

These extradition requests are handled by the UK Central Authority (UKCA). The Secretary of State then can establish ‘special extradition arrangements’, ensuring that the UK remains a cooperative player in international law enforcement.

Facing Extradition in the UK? Our Experts Can Assist!

Are you facing extradition, or know someone in this predicament in the UK? The complexities of extradition law can be staggering and stressful, but you don’t have to go through it alone.

If an extradition agreement has been made or a warrant for your extradition has been issued, prompt legal advice is crucial. We’re here to help you understand the extradition process through any bars to extradition that might apply.

Our team of specialised extradition solicitors is well-versed in the complexities of extradition cases. Whether you’re facing an extradition request or challenging an extradition offence, we offer expert legal advice and robust representation to ease the situation.

Our approach is tailored to provide assurance and support, aiming to prevent extradition where it may contradict your rights or lead to unjust outcomes. We aim to ensure that your case is presented with the utmost strength, considering every possible avenue to resist extradition.

Don’t let the stress of facing extradition overwhelm you. Contact us today for a consultation, and let’s explore how we can safeguard your future and fight for the best possible outcome in your case.

Also read: How Can Extradition Lawyers Help Me Challenge an Extradition Request?


An extradition treaty is an agreement between two governments that authorises the extradition of someone who has engaged in an offence such as drug trafficking, forgery, or murder in one country and is found in the other.

Yes, under Article 3 of the European Convention on Human Rights, extradition may be refused if there’s a real risk of torture, inhuman, or degrading treatment in the requesting country.

Extradition proceedings are legal processes that involve the transfer of an individual from one country to another in order to face criminal charges or serve a sentence.

Yes, the Secretary of State has the authority to refuse an extradition request if certain statutory bars, such as double jeopardy, human rights concerns, and the death penalty.

It depends on the circumstances. Your legal team can explore potential avenues, such as bail or challenging the extradition request, to help you stay in the UK.

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