Matrix Chambers has a ‘very well-regarded extradition team’, and members of the chambers have been instructed in prominent and complex extradition proceedings complicated by human rights concerns. With ’incomparable depth of knowledge of extradition law’ Mark Summers KC led for the CPS in a Supreme Court appeal United States v El-Khouri, a case concerning the dual criminality test. Alex Bailin KC has particular strength in defendant-side proceedings in cases concerning charges of fraud or financial crime, with recent work including leading in the case of a man who faced drug trafficking charges in the US. James Stansfeld ‘possesses comprehensive knowledge of the relevant statutory frameworks’ and recently acted in an appeal in the Divisional Court for the requested person in a case concerning Indian charges of fraud and money laundering.
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Profile
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Practice Areas
Specialist in extradition, mutual legal assistance, and international criminal law. Regularly instructed to advise and appear on behalf of individuals and foreign governments in proceedings in the United Kingdom and abroad. Prior Chair of the Extradition Lawyers’ Association. Caseload has included ● Julian Assange ● USA v Mike Lynch (sale of Autonomy to Hewlett Packard) ● India v Vijay Mallya (collapse of Kingfisher Airlines) ● USA v Sarao (2010 “flash crash) ● USA v Pearse (Mozambique “tuna bond” fraud) ● collapse of Enron (the “NatWest 3”) ● attempted Regicide ● Madrid train bombings ● murder of Theo van Gogh ● hacking into the Pentagon and Pearl Harbour and NASA computer networks. Mark’s domestic criminal practice focuses on anti-terrorism, national security, and cases concerning complex cross-border and jurisdictional issues. Recent caseload has included ● Russian spy ring ● Elgizouli ● Anjem Choudary ● 1982 Hyde Park IRA bombing.
Publications
Co-author: "The Law of Extradition and Mutual Assistance" (OUP, 4th ed., 2025), “Abuse of Process in Criminal Proceedings” (Bloomsbury, 4th. ed., 2014); “Human Rights and Criminal Justice” (Sweet & Maxwell, 3rd ed., 2012).
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Testimonials
Collated independently by Legal 500 research team.
- 'Chambers support their members and are an equal partner in the case team. Always prompt with support and requests.'
- 'Matrix have a small but very well regarded extradition team.'