Catherine Brown

Catherine is a specialist extradition practitioner. She was seconded to the Extradition Unit of the Special Crime and Counter-Terrorism Division of the Crown Prosecution Service for 13 months where she conducted contested hearings and dealt with a significant amount of case work in proceedings under both Part 1 and Part 2 of the Extradition Act 2003. Catherine also advised on a number of import extradition cases.

She returned to the Bar in March 2014 and has since developed a strong practice in extradition and has represented both requested persons and Governments in contested extradition hearings at Westminster Magistrates’ Court and in appellate proceedings at the Administrative Court.

Catherine has been instructed in cases covering the full spectrum of issues that may arise in extradition proceedings including Human Rights, bars to extradition and technical arguments regarding dual criminality and sufficiency of particularisation in European Arrest Warrants.


Catherine is instructed in varying areas of criminal law at each of the Crown, Youth and Magistrates’ Courts.  She has received instructions for trial on indictment including allegations of robbery, burglary, possession of offensive weapons, serious assault, sexual assault, theft and fraud. Her trial experience includes cases involving the use of cell site evidence, expert witnesses, “cut-throat” defences and substantial bad character evidence.

Catherine has considerable experience of cases centering on fitness to plead and those involving young and vulnerable defendants and witnesses. She was led by Michelle Colborne QC in a trial at Bradford Crown Court involving allegations of historical sexual abuse. The complexities of the case required the use of an intermediary for both the defendant and one of the complainants.

She has advised on both appeals against conviction and sentence. In 2012 Catherine appeared in the Court of Appeal Criminal Division in front of Lord Justice Judge and successfully appealed the imposition of an excessive sentence (Regina v David Christopher Mason [2012] EWCA Crim 967).

Before undertaking pupillage, Catherine volunteered as a panel member at Wandsworth Youth Offending Team implementing and reviewing youth referral orders and has considerable experience of dealing with young defendants. This experience assists enormously in her youth court practice and she is regularly instructed in serious matters in the youth court such as robbery, sexual assault, serious assaults and possession with intent to supply drugs.

Catherine regularly receives instructions in motoring cases at the Magistrates’ Courts including the advancement of arguments of “special reasons” and “exceptional hardship”.

Furthermore, Catherine has been instructed in regulatory crime such as Local Authority Health and Safety prosecutions, and quasi-criminal actions including applications for both “post conviction” and “stand alone” anti-social behaviour orders, confiscation and enforcement proceedings, cash forfeiture and restraint and premises closure orders. Catherine has defended in a number of matters prosecuted by the Department for Work and Pensions.


Prior to commencing pupillage in 2009, Catherine gained valuable experience working for two large solicitors firms. She spent nine months in the Regulatory and Investigations Team at Irwin Mitchell assisting in a number of serious fraud cases. In addition she gained experience in civil fraud and directors’ disqualification proceedings.

Catherine later worked for nearly three years at Hempsons Solicitors in the employment department dealing with professional clients within the National Health Service. In addition to employment law Catherine worked on a number of matters involving regulatory bodies such as the General Dental Council, General Medical Council and the Nursing and Midwifery Council. Her role included appearing on behalf of clients in Employment Tribunal Case Management Hearings in the ongoing national equal pay litigation. As a result of her role at Hempsons, Catherine has a great deal of experience in complex civil litigation.


Attorney General’s C Panel (appointed 2016)

CPS Advocates Panel general Crime Level 1

CPS Advocates Panel (Extradition) Level 2

Professional Memberships

Criminal Bar Association

Extradition Lawyer’s Association

South Eastern Circuit

  • C&P Catherine Brown
  • uk_leading_Junior_2021