Mark Summers QC > Matrix Chambers > London, England > Lawyer Profile

Matrix Chambers


Specialist in extradition, mutual legal assistance, criminal EU law. Recent extradition cases include ● India v Vijay Mallya ● USA v Naviner Sarao (the 2010 “flash crash”) ● USA v Kareem Serageldin (Credit Suisse executive prosecuted for his part in the 2008 financial crisis) ● the collapse of Enron (the “NatWest 3”) ● Spain v Rwandan intelligence chief, General Karenzi Karake ● Sweden v Julian Assange  ● South Africa v Shrien Dewani.  Mark’s domestic criminal practice focuses on anti-terrorism and cases concerning complex cross-border and jurisdictional issues. His recent caseload has included ● R v Anjem Choudary ● the 1982 Hyde Park IRA bombing ● the Pakistani international cricket spot-fixing trial ● the plot to bomb the London Stock Exchange ● challenges to the legality of the policing of the 2011 Royal Wedding.


Called 1996; Inner Temple • co-author of ‘Abuse of Process in Criminal Proceedings’ (Bloomsbury, 4th ed. 2014) • co-author ‘The Law of Extradition and Mutual Assistance’ (3rd ed. OUP, 2013) • co-author of ‘Human Rights and Criminal Justice’ (3rd ed. Sweet & Maxwell, 2012) • contributing editor to ‘Fraud: Criminal Law and Procedure’ (Looseleaf, OUP).


Extradition Lawyers’ Association (former chair).

Lawyer Rankings

London Bar > International crime and extradition

(Leading Silks)Ranked: Tier 1

Mark Summers QCMatrix ChambersHe is a genuine expert in his field and is one of the most knowledgeable silks on the market. He is also a commanding advocate, a pleasure to be led by and a fearsome opponent.