Mr Mark Sutton QC > Chambers of Oliver Segal QC > London, England > Lawyer Profile

Chambers of Oliver Segal QC
Old Square Chambers
Mark Sutton photo


Mark Sutton QC’s practice spans employment disputes, professional regulatory cases and hearings before disciplinary panels. He routinely appears before civil courts, employment tribunals, professional disciplinary panels and internal inquiries. He is regarded as the Bar’s foremost expert on disciplinary procedures in the healthcare sector, providing advice and representation to practitioners, NHS Trusts and government agencies. He represents practitioners in substantial fitness to practise hearings before the MPTS and other regulatory bodies. He routinely undertakes judicial reviews and statutory appeals. Mark has acted as leading counsel in two successful Supreme Court appeals determining the scope of pre-emptive and financial remedies in disciplinary proceedings, and has appeared in most of the recent cases before the High Court and appellate courts which have developed the law in this area. Mark has extensive experience of all aspects of employment law. He advises clients, both corporate and individual, in disputes involving healthcare, education, financial services, local authorities and the police. Mark has appeared before the higher appellate courts in several landmark employment cases. He is described as ‘one of the few excellent lawyers to have equal footing in employment law and regulatory law. He is profoundly knowledgeable and the sort of person who would inspire confidence in any judge.” Mark is Head of Chambers at Old Square Chambers and a Bencher of the Middle Temple.


Industrial Law Society; ELBA; ELA.


BA Hons Dip Law.

Lawyer Rankings

London Bar > Professional disciplinary and regulatory law

(Leading Silks) Ranked: Tier 2

Mark Sutton QCOld Square ChambersAn extremely impressive advocate with a calm and measured style. Brings his knowledge of employment law to bear on professional disciplinary matters.

‘A first choice set for tricky disciplinary cases with a range of counsel of varying call’, Old Square Chambers is active in a number of cases, including defending doctors, and is adept at handling cases crossing over with employment law. In Dr. Jain v University Hospitals South Manchester NHS Foundation Trust, Mark Sutton QC appeared in the High Court addressing an issue of whether a trust is required to investigate behaviour leading to a fundamental breakdown in working relationships within a hospital department via its established conduct or capability procedures. Mary O’Rourke QC represents former Team Sky doctor Richard Freeman, who is is accused by the GMC of having ordered banned steroids to be delivered to the Manchester Velodrome for their administration to elite cyclists; leading Nicola Newbegin, O’Rourke QC also represented the appellant in GMC v Sastry, a High Court case (with permission to appeal granted) concerning if an Indian doctor treating local patients there was subject to the GMC’s aegis owing to his dual registration in the UK. Unled, Eleena Misra represented a medical professional in a case concerning if facts which led to a criminal trial being terminated as an abuse of process could be the basis of regulatory proceedings.

London Bar > Employment

(Leading Silks) Ranked: Tier 2

Mark Sutton QCOld Square ChambersAn erudite and clear advocate, who is a go-to counsel for complex matters.

Old Square Chambers is ‘a high-quality set‘ that acts in a large range of cases (including before the Appellate courts), which cover worker status, human rights, contract claims, discrimination, industrial action, holiday pay, injunctions and equal pay, among others. In an important test case, Lord Hendy QC led Katharine Newton QC in representing the Independent Workers of Great Britain, in seeking worker status and union recognition on behalf of thousands of Deliveroo riders. Mark Sutton QC is a leading silk for employment disputes involving doctors and other healthcare sector staff. Strengthening the set at the senior end, Ijeoma Omambala QC, Deshpal Panesar QC, Rebecca Tuck QC and Katharine Newton QC all took silk in 2020. At the junior end, Tom Kirk has arrived from the now-dissolved Ely Place Chambers and the ‘persuasive advocateMadeline Stanley and the ‘intelligent, calm, and unruffledBenjamin Jones are rising stars in chambers.