Mary Westcott > Doughty Street Chambers > London, England > Lawyer Profile

Doughty Street Chambers
Doughty Street Chambers


Mary is a respected extradition specialist with a background in criminal and public international law.  Following a CPS Extradition secondment in 2009 she now works almost exclusively in extradition, predominantly defending but also prosecuting, for example recently instructed on behalf of Poland in the Supreme Court decision of Goluchowski & Sas v Poland [2016] UKSC 36.  

Mary’s specialisim gives her a firm grasp of the procedural issues that arise during extradition proceedings, for example having represented in the first prosecution appeal against bail (R (on the application of the USA) v Frater [2009] EWHC 1122 (Admin)) and secured numerous discharges due to breach of statutory removal periods.

She has been involved in numerous key cases, acting as a led Junior, but more often acting alone for the vulnerable, such as victims of trafficking or domestic violence.  Mary has a particular interest in children’s rights and has frequently successfully invoked Article 8 ECHR to prevent extradition, acting for the mother in at least three rare simultaneous extradition requests for both parents.

Mary also advises individuals and authorities on related issues such as the preparation of extradition requests from this jurisdiction to countries without a functioning bi-lateral extradition treaty (e.g. Iraq and Pakistan).  


Called 2007.

Lawyer Rankings

London Bar > International crime and extradition

Within: Leading Juniors -

Mary Westcott

Doughty Street Chambers

She is extremely thorough, and will consider all the angles of a case.