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Jessica Simor QC

Work 020 7404 3447
Matrix Chambers (Matrix Chambers)


Specialises in public law, EU and human rights. Recent cases: R (on application of Ingenious Media Holdings PLC and another) v Revenue and Customs Commissioners [2015] EWCA Civ 173; R (on the application of WHISTL UK LTD (formerly TNT Post UK LTD)) (Claimant) v Revenue & Customs Commissioners (Defendant) & Royal Mail Group Ltd (Interested Party) [2014] EWHC 3480 (Admin); BPP University College of Professional Studies Ltd and others v Revenue and Customs Commissioners [2014] UKUT 496 (TCC); Secretary of State for Business, Innovation and Skills v PLT Anti-Marketing Ltd [2015] EWCA Civ 76; R (on the application of Letts) v Lord Chancellor; [2015] EWHC 402 (Admin), Delfi v Estonia App. No. 64569/09 (pending); Smith and another v Ministry of Defence (JUSTICE and another intervening).


Called 1992; Middle Temple; former member of A-G- A Panel; lawyer in European Commission of Human Rights (Strasbourg) 1995; legal adviser to the Human Rights Ombudsman Bosnia and Herzgovina (Sarajevo) 1996; former member Monckton Chambers; founder member Matrix Chambers 2000; editor/author ‘Human Rights Practice’ (Sweet & Maxwell); ‘Undertakings: Halsbury’s Laws of the European Communities’ ed Vaughan; ‘Human Rights in Bosna Herzegovina [1997] 6EHRLR 644.




Executive committee, Justice; Bar European Group; former chair of British Institute of Human Rights.


St Paul’s Girls School; St Catherine’s College, Oxford (MA); City University (Dip Law); Kings College, London (postgraduate Dip EC Law); Harmsworth scholar and Inns of Court scholar (Middle Temple).

London Bar

Administrative and public law (including local government)

Within: Administrative and public law (including local government) – Leading silks

Jessica Simor QC - Matrix ChambersShe has the ability to analyse complex issues of fact and law.

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EU law

Within: EU law – Leading silks

Jessica Simor QC - Matrix ChambersA real master of her craft. Extremely hardworking, diligent and passionate about her cases.

Within: EU law

Excellent setMatrix Chambers has ‘a wide range of outstanding barristers’ with ‘considerable experience and expertise in EU law’. Members of chambers appeared in the headline-grabbing Brexit litigation, R (Miller). Some more recent highlights of note include Rhodri Thompson QC acting on a challenge to the office of road and rail concerning charges for access to the Heathrow Spur; Jessica Simor QC acting in R (McKeown, Duggan & others) v HMRC, which concerned excise smuggling; and the Court of Appeal case of Guebeladze v Secretary of State for Work & Pensions, where Helen Mountfield QC successfully resisted an appeal against a finding that an extension of the UK’s ‘worker registration scheme’ for the nationals of Accession State countries constituted a disproportionate infringement of EU law.

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