Catherine handles complex public law and private law claims, often involving multiple state agencies and the intersection of civil and criminal law, domestic, European and international law. She has acted at all levels up to the Supreme Court, both European Courts and in international fora. Her high profile, novel cases have broken new ground for the first time.
Catherine is a member of the Equality and Human Rights Commission panel of Counsel. She acts as an expert adviser to European and UN institutions, working with the Council of Europe (e.g., alternatives to detention project), the Group of Experts on Action Against Trafficking in Human Beings (GRETA), the UN Office on Drugs and Crime (UNODC), UNICEF, UN Refugee Agency (UNHCR), UN Committee on the Elimination of Discrimination (CEDAW), and UN Special Procedures (including the Special Rapporteur on Trafficking).
"Catherine is highly intelligent and has a detailed knowledge of all relevant areas. She has expertise in trafficking cases and is a go-to barrister for her knowledge in this area. She is creative in arguments and her drafting is excellent." - Legal 500 2026
"Catherine is a superb practitioner who is hard-wired to achieve success for her clients." - Chambers and Partners 2026
"She is someone who really thinks outside the box. If your client has a problem, she will solve it via any means available. She will action all ideas, using her network." - Chambers and Partners 2026
"Catherine is fantastically dedicated." - Chambers and Partners 2026
"Catherine is a leading junior in her field. She has excellent knowledge in the complex legal arena of trafficking and modern-day slavery." - Chambers and Partners 2023
"Careful, considered approach. Takes care to ensure favourable outcomes for clients are implemented effectively, even where settlement is offered at early stage." - Legal 500 2023
"She is knowledgeable, trustworthy and extremely intelligent. She is passionate about social justice and is empathetic towards clients and fights for them." - Chambers and Partners 2022
"Catherine is a top barrister in immigration law especially when it applies to victims of trafficking." - Legal 500 2022
“An enterprising and experienced immigration barrister, she is highly regarded for her strong commitment to cases involving trafficked children and sexual and gender-based violence. Her broad practice has a noted focus on judicial review, asylum claims and ECHR law. She is regularly instructed on behalf of prominent human rights NGOs, in both the Supreme Court and ECtHR.” - Chambers & Partners 2021
"She is really experienced, committed and professional. She is always able to deal with technical and complex procedural issues." - Chambers & Partners 2021
"She really fights hard for her clients." - Chambers & Partners 2021
"If I had a trafficking case I'd go to her in a heartbeat." "She is an excellent, intellectual lawyer, who grasps cases very well.” - Chambers and Partners
“Catherine is a top barrister in immigration law especially when it applies to victims of trafficking.” - Legal 500 2021
Catherine is ranked as a leading junior in immigration.
Catherine has 15 year’s experience in human rights and civil liberties.
She worked with the AIRE Centre, the Parliamentary Assembly of the Council of Europe (Committee on Refugees Migration and Population), the UN Refugee Agency (UNHCR) and the Commonwealth Secretariat. She has utilised judicial, non-judicial, Parliamentary and media strategies to secure access to justice for clients and bring about changes to law and policy. She continues to bring this creative and innovative approach to her work.
Catherine has trained and lectured domestically and internationally, has tutored on undergraduate and Masters public law and human rights programmes, and has written and published extensively including standard-setting and best-practice guides, e.g. the European Union Agency for Fundamental Rights and the European Court of Human Rights Handbook on European law relating to asylum, borders and immigration; and EHRC Access to healthcare: a guide for organisations working with people seeking asylum (2019).
Catherine is a public law expert. She has a broad practice acting for individuals, groups of individuals/public interest groups, charities and companies. She has breadth and depth of expertise across a wide range of issues, including asylum and immigration, anti-trafficking, support and accommodation issues, equality and discrimination, access to justice and legal aid, extraterritorial human rights obligations/military abroad. She is known for her work representing vulnerable groups, specializing in women and children’s rights and LGBT+; and acts for survivors of torture, sexual and gender based violence and trafficking and often for protected parties lacking litigation capacity. Catherine often handles difficult procedural matters as well as anonymity and reporting restrictions.
Catherine is recognised as a leading anti-trafficking expert. She handles complex, multi-agency cases, often intersecting civil, criminal, domestic and international law. She acts in a broad range of trafficking challenges, including inter alia NRM failures, failures to identify, failure to investigate, non-prosecution, support failures, as well as asylum and immigration matters including unlawful detention, access to legal aid, access to justice, and effective remedies. She acts in public law and private law claims, including for compensation under the Human Rights Act and in tort.
Catherine acts as an expert adviser and Consultant on domestic, regional and international anti-trafficking and human rights law and policy, developing best practice and user-friendly practitioner guides, capacity building and training. She has advised the Council of Europe, including the Group of Experts on Trafficking in Human Beings (GRETA), the Parliamentary Assembly of the Council of Europe (PACE), the Committee of Ministers; the EU Fundamental Rights Agency; UN agencies, including the UN Special Rapporteur on Trafficking (and UN Special Procedures); UN Office on Drugs and Crime (UNODC), UN Refugee Agency (UNHCR), UNICEF and the Committee on the Elimination of Discrimination (CEDAW).
She has advised on legislative and policy issues, PMQs, public consultations, reports, briefings, campaigns, including authoring/ co-authoring/ collaborating with other practitioners or well-known NGOs in the field of anti-trafficking. She has advised on trafficking and gender based violence issues in relation to the Modern Slavery Bill, the Serious Crime Bill (FGM), the Legal Aid Sentencing and Punishment of Offenders Act (LASPO) and several legislative instruments concerning immigration.
Catherine also advises on business and human rights , corporate responsibility and on trafficking and modern slavery in supply chains.
Catherine has 15 year’s experience in human rights and civil liberties. She worked with the AIRE Centre, the Parliamentary Assembly of the Council of Europe (Committee on Refugees Migration and Population), the UN Refugee Agency (UNHCR) and the Commonwealth Secretariat. She has utilised judicial, non-judicial, Parliamentary and media strategies to secure access to justice for clients and bring about changes to law and policy. She continues to bring this creative and innovative approach to her work.
Catherine regularly represents claimants in judicial reviews and civil claims under the Equality Act 2010 and Human Rights Act 1998 raising equalities and human rights issues. Her cases have involved discrimination in various forms, equality impact assessments, and the public sector equality duty. Catherine has developed public interest challenges raising novel equalities arguments including in claims concerning LGBTI+ claims, disability, race, religion, gender. She is particularly interested in intersectional discrimination.
She is a member of the Equality and Human Rights Commission panel of specialist Counsel and worked on an extensive project concerning the right to health, leading to the publication of Access to healthcare: a guide for organisations working with people seeking asylum (2019). She has advised the Committee on the Elimination of Discrimination (CEDAW) and other bodies on gender transformative approaches and equality of women and girls who are victims of trafficking.
Catherine is an experienced immigration asylum and refugee law practitioner acting at all levels, in judicial reviews, statutory appeals, and civil claims, across a wide-range of matters. She has a particular specialism in complex cases involving human rights; and representing particularly vulnerable groups, including children, women, victims of trafficking, victims of torture and sexual and gender based violence, LGBTQI+ and persons with disabilities including incapacitous clients.
Her cases have involved the application and interrelationship of EU, ECHR, international and domestic law. She has been involved in ground-breaking litigation involving victims of trafficking and unaccompanied and separated children in cases which have changed and developed law and policy.
Catherine also advises private individuals and organisations on all aspects of business and commercial immigration. She is also experienced in handling high value high net cases for individuals and businesses; including difficult business immigration issues and whistleblowing.
Further cases are noted above under ‘Administrative and Public Law’ ‘Civil Liberties and Human Rights’ and ‘Trafficking and Modern Slavery’.
Catherine has been involved in landmark strategic litigation, acting on behalf of individuals, groups, and NGOs in the domestic courts up to the Supreme Court, the European Court of Human Rights, and the Court of Justice of the EU.
Catherine has provided expert advice to individuals, groups, NGOs, and supranational institutions on State liability and accountability mechanisms in complex cases concerning the legality of acts and omissions by the UK and other State actors e.g., air strikes / no fly zones in Syria, Libyan detention camps, state-sponsored human rights abuses in Sudan, and human rights abuses particularly of children and minorities in Myanmar. She has represented individuals abroad on a range of issues including trafficking, family reunion, investigative duties for crimes committed abroad.
Catherine also advises on business and human rights, corporate responsibility and on trafficking and modern slavery in supply chains.
Notable cases can be found above under ‘Administrative and Public Law’ ‘Civil Liberties and Human Rights’ and ‘Trafficking and Modern Slavery’.
Catherine’s practice in media law and defamation has developed from broad experience advising journalists, human rights and political activists, campaigners, bloggers, politicians (and their families) in the domestic courts and supranational courts in human rights and protection claims. She is experienced in relation to reporting restrictions and anonymity applications, particularly for vulnerable individuals and high profile political refugees and dissidents from repressive regimes.
Catherine also acts as a duty lawyer on the Guardian (media) libel and legal rota.
She frequently works with journalists, civil society on investigations and parallel litigation and press/ campaigning/ Parliamentary strategies including on high profile cases or cases seeking a change to law and policy.
Beyond the end of the line: home secretary can and will support victims of trafficking post-exit from the NRM, Legal Action Group, February 2018, Fiona Couzens and Catherine Meredith.
