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Jessica Simor QC
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Jessica Simor QC

"...extremely knowledgeable...a skillful advocate with enviable clarity and focus... a passionate and committed advocate."

Chambers & Partners 2017
Called: 1992 | Silk: 2013

Jessica is recognised as one of the country’s leading specialists in public/regulatoryEU and human rights law, acting for a wide range of clients, ranging from large companies, regulators, Government departments, NGOs, and for private individuals. She has particular experience in data protection privacy/data protection, tax, regulatory/competition law across different industries and in civil liberties work.

Jessica represented the second Claimant, Dos Santos, in R (Miller & Anor) v Secretary of State for Exiting the European Union & Ors [2017] UKSC 5, the challenge to the Prime Minister’s decision to use the Royal Prerogative to notify the EU of the UK’s intended withdrawal under Article 50 of the Treaty on European Union. Jessica also recently acted for Privacy International and Open Rights Group in its intervention in a challenge to the emergency legislation adopted to require telecom companies to retain data showing the identity, time, location and duration of electronic communications in R (Watson and Davis) and the Open Rights Group and Privacy International v S/S Home Department [2015] EWCA Civ 1185; [2015] EWHC 2092.

Prior to taking Silk in 2013 she was a member of the Attorney General’s A Panel of Counsel. She is editor of ‘Human Rights Practice’, a qualified mediator, was in 2016 UK nominee for Judge at the European Court of Human Rights, is a member of BEG and vice chair of the Bar Council EU Law Committee. Jessica was listed in The Lawyer Hot 100 2014.

Bencher and member of Finance Committee, Middle Temple

Vice-chair EU Committee of the Bar Council of England and Wales

Member of Executive committee of Bar European Group

Member of the Steering Group of UK Legal Future (set up to assist MPs understand legal issues surrounding Brexit)

Fellow of the Bingham Centre for the Rule of Law

Accredited Mediator

Member of Steering Committee of international climate change litigation project, first meeting held November 2008 at Michigan Law School

Signatory of Oslo Principles on Climate Change

Member of the UNHCR panel of specialised counsel

Trustee of St. John’s Smith Square

Former executive member of Justice and the British Institute of Human Rights, of which she was also Chair.

MA (Oxon)

CPE (City University)

Dip EU Law (King’s College London)

Harmsworth Law Scholar, Inns of Court Scholar

Bencher of Middle Temple (Inns of Court)

Fluent French.

Jessica is fluent in French.

Jessica is committed to protecting and respecting your privacy. In order to provide legal services to her clients, including advice and representation services, Jessica needs to collect and hold personal data. This includes her client’s personal data and the personal data of others who feature in the matter upon which she is instructed. To read Jessica’ privacy notice in full, please see here.

Jessica is regulated by the Bar Standards Board and accepts instructions under Standard Contractual Terms. To find out more information on this and the way we work at Matrix, including our fee transparency statement, please see our see our service standards

DIRECTORY RECOMMENDATIONS

"An excellent lawyer who is very passionate about her work."

Chambers & Partners 2021, Administrative and Public Law

"She is as good as ever: precise and practical."

Legal 500 2021, European Law

"She develops new approaches, and is good at finding ways of advancing the field."

Legal 500 2021, Civil Liberties and Human Rights

"An excellent lawyer who is very passionate about her work."

Legal 500 2021, Administrative and Public Law

"She is clearly passionate about what she does, is a straight-talker and really understands which points will resonate with the court."

Chambers & Partners 2020, European Law

"A very polished and knowledgeable advocate.” “She is an established new law expert who is calm and persuasive.” “She’s very approachable, user-friendly and good on judicial review."

Chambers & Partners 2020, Administrative and Public Law

"Jessica Simor is very good and thorough."

Chambers & Partners 2020, Civil Liberties & Human Rights

"Simor is brilliant on EU law and gets results for her clients."

Chambers & Partners 2019, European Law

"Instructed in Brexit-related Luxembourg cases."

Legal 500 2019, European Law

"She has a deep and impressive knowledge base."

Chambers & Partners 2019, Civil Liberties and Human Rights

"Provides excellent technical and strategic advice at all times and does so in an approachable and down-to-earth manner. She is undoubtedly a subject expert in public and human rights law, and is unflappable on her feet in court.” “Very straightforward, she explains complicated things in a really simple way."

Chambers & Partners 2019, Administrative and Public Law

"Jessica is charming and very good at what she does."

Chambers & Partners 2018, Civil Liberties and Human Rights

"She excels at providing commercial and strategic advice.” “She has an incredible ability to make complex things simple and a really good sense of what points to make and advance.” “She distils complicated things into simple points very quickly, which is very helpful for clients."

Chambers & Partners 2018, Administrative and Public Law

"She has the ability to analyse complex issues of fact and law."

Legal 500 2018, Administrative and Public Law

"A real master of her craft. Extremely hardworking, diligent and passionate about her cases."

Legal 500 2018, European Law
Matrix Chambers
24 HOUR ASSISTANCE
+44 (0)20 7404 3447
Jessica Simor QC
Called: 1992 | Silk: 2013

"...extremely knowledgeable...a skillful advocate with enviable clarity and focus... a passionate and committed advocate."

Chambers & Partners 2017

MAIN AREAS OF PRACTICE

  • International arbitration
  • Commercial Law
  • Mediation
  • Competition
  • Crime
  • Discrimination and Equality
  • Environmental Law and Natural Resources
  • EU Law
  • Civil Liberties and Human Rights
  • Injunctions
  • Inquests and Inquiries
  • Investigations
  • Local Government Law
  • Media and Information Law
  • Data Protection
  • Public International Law
  • Public Law
  • Tax Law
  • Police, Inquests and Prison
  • Health and Social Care (including welfare benefits)
  • Commercial Public Law

Jessica Simor QC

Contact Jessica: jessicasimor@matrixlaw.co.uk | +44 (0)20 7404 3447

Contact Jessica's Practice Team (Team X): TeamX@matrixlaw.co.uk


Jessica is recognised as one of the country’s leading specialists in public/regulatoryEU and human rights law, acting for a wide range of clients, ranging from large companies, regulators, Government departments, NGOs, and for private individuals. She has particular experience in data protection privacy/data protection, tax, regulatory/competition law across different industries and in civil liberties work.

Jessica represented the second Claimant, Dos Santos, in R (Miller & Anor) v Secretary of State for Exiting the European Union & Ors [2017] UKSC 5, the challenge to the Prime Minister’s decision to use the Royal Prerogative to notify the EU of the UK’s intended withdrawal under Article 50 of the Treaty on European Union. Jessica also recently acted for Privacy International and Open Rights Group in its intervention in a challenge to the emergency legislation adopted to require telecom companies to retain data showing the identity, time, location and duration of electronic communications in R (Watson and Davis) and the Open Rights Group and Privacy International v S/S Home Department [2015] EWCA Civ 1185; [2015] EWHC 2092.

Prior to taking Silk in 2013 she was a member of the Attorney General’s A Panel of Counsel. She is editor of ‘Human Rights Practice’, a qualified mediator, was in 2016 UK nominee for Judge at the European Court of Human Rights, is a member of BEG and vice chair of the Bar Council EU Law Committee. Jessica was listed in The Lawyer Hot 100 2014.

Other Professional Experience

Bencher and member of Finance Committee, Middle Temple Vice-chair EU Committee of the Bar Council of England and Wales Member of Executive committee of Bar European Group Member of the Steering Group of UK Legal Future (set up to assist MPs understand legal issues surrounding Brexit) Fellow of the Bingham Centre for the Rule of Law Accredited Mediator Member of Steering Committee of international climate change litigation project, first meeting held November 2008 at Michigan Law School Signatory of Oslo Principles on Climate Change Member of the UNHCR panel of specialised counsel Trustee of St. John’s Smith Square Former executive member of Justice and the British Institute of Human Rights, of which she was also Chair.

Qualifications

MA (Oxon) CPE (City University) Dip EU Law (King’s College London) Harmsworth Law Scholar, Inns of Court Scholar Bencher of Middle Temple (Inns of Court) Fluent French.

Additional Publications

A speedy referendum would be a far better alternative than a general election Why it’s not too late to step back from the Brexit brink, Guardian October 2017 Fashion Focus: The Fundamental Right to a Living Wage (The Circle, 2017 and 2019) Open Democracy: “What we can learn from the Supreme Court decision on Article 50”, January 2017 Is the proportionality test making judges too political? Contributor to UK Competition Law: The New Framework, R Kellaway, R Thompson and C Brown (eds) (OUP, 2015) Contributor to The Law of Criminal Cartels, Practice and Procedure, Michael O’Kane (OUP, 2006) A Bill of Rights or an excuse for nationalism Times Law conference 2010 Human Rights Practice, Sweet and Maxwell. Tackling Human Rights Abuses in Bosnia and Herzegovina

Languages

Jessica is fluent in French.

Articles and Downloads

Does the proportionality test make judges too political? Letter to the Prime Minister in regard to the revocation of Article 50 Legal opinion in regard to the revocation of Article 50 (written with two other QCs) Seminar Paper: Olswangs & Matrix Judicial Review Paper Seminar: Fundamental rights and access to justice under EU law – update on key issues Conference Paper: Judicial review and regulatory proceedings Conference Paper: JUSTICE Human Rights Conference – Strasbourg Developments Conference Paper: Hart Annual Conference – Environmental Judicial Review Update Lecture: A Bill of Rights or an excuse for nationalism? Seminar: Privacy, data retention and state surveillance Seminar: Recent Developments in Strasbourg Article: Tackling human rights abuses in Bosnia and Herzegovina Lecture: Sovereignty – The historical perspective; or ‘les absents ont toujours tort’ on eutopialaw.com.
Jessica's Privacy Notice

Jessica is committed to protecting and respecting your privacy. In order to provide legal services to her clients, including advice and representation services, Jessica needs to collect and hold personal data. This includes her client’s personal data and the personal data of others who feature in the matter upon which she is instructed. To read Jessica’ privacy notice in full, please see here.


DIRECTORY RECOMMENDATIONS

"An excellent lawyer who is very passionate about her work."

Chambers & Partners 2021, Administrative and Public Law

"She is as good as ever: precise and practical."

Legal 500 2021, European Law

"She develops new approaches, and is good at finding ways of advancing the field."

Legal 500 2021, Civil Liberties and Human Rights

"An excellent lawyer who is very passionate about her work."

Legal 500 2021, Administrative and Public Law

"She is clearly passionate about what she does, is a straight-talker and really understands which points will resonate with the court."

Chambers & Partners 2020, European Law

"A very polished and knowledgeable advocate.” “She is an established new law expert who is calm and persuasive.” “She’s very approachable, user-friendly and good on judicial review."

Chambers & Partners 2020, Administrative and Public Law

"Jessica Simor is very good and thorough."

Chambers & Partners 2020, Civil Liberties & Human Rights

"Simor is brilliant on EU law and gets results for her clients."

Chambers & Partners 2019, European Law

"Instructed in Brexit-related Luxembourg cases."

Legal 500 2019, European Law

"She has a deep and impressive knowledge base."

Chambers & Partners 2019, Civil Liberties and Human Rights

"Provides excellent technical and strategic advice at all times and does so in an approachable and down-to-earth manner. She is undoubtedly a subject expert in public and human rights law, and is unflappable on her feet in court.” “Very straightforward, she explains complicated things in a really simple way."

Chambers & Partners 2019, Administrative and Public Law

"Jessica is charming and very good at what she does."

Chambers & Partners 2018, Civil Liberties and Human Rights

"She excels at providing commercial and strategic advice.” “She has an incredible ability to make complex things simple and a really good sense of what points to make and advance.” “She distils complicated things into simple points very quickly, which is very helpful for clients."

Chambers & Partners 2018, Administrative and Public Law

"She has the ability to analyse complex issues of fact and law."

Legal 500 2018, Administrative and Public Law

"A real master of her craft. Extremely hardworking, diligent and passionate about her cases."

Legal 500 2018, European Law