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

Matrix Chambers
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 has an outstanding intellect.

Matrix Chambers‘ members are active in the ongoing case concerning India’s request for the extradition of Vijay Mallya, co-owner of the Force India Formula One team and chairman of United Breweries Group, following charges of fraud; Clare Montgomery QC is representing Mallya, while Mark Summers QC acts for the Indian government (via the Crown Prosecution Service). Mallya’s extradition was initially approved in February 2019, although the defendant was granted permission to appeal the decision in July 2019. James Stansfeld and Florence Iveson have joined from Furnival Chambers and The 36 Group respectively.