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Jessica is recognised as one of the country’s leading specialists in public/regulatory, EU 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.

Professional and Academic Qualifications

2016: Elected Bencher of Middle Temple (Inns of Court)
2015: Fellow, Bingham Centre for the Rule of Law, British Institute on International and Comparative Law.
2013: Appointed as Queen’s Counsel
2010: Appointed to Attorney General’s A Panel of Counsel
2003: Appointed to Attorney General’s B Panel of Counsel
1994-1995: Post-graduate diploma in EC Law, King’s College, London
1991-1992: Bar Finals (Harmsworth and Inns of Court Law scholar)
1990-1991: City University London CPE
1986-89: St. Catherine’s College, Oxford, MA Hons (Oxon)

Languages

Jessica is fluent in French.

Articles and Downloads

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.


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
WHAT THEY SAY:

“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