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

Chambers of Oliver Segal KC
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 KCOld Square Chambers

Regarded for its ‘expertise in assisting healthcare professionals‘, the barristers at Old Square Chambers often ‘provide an excellent service‘. In GMC v Richard Freeman, Mary O’Rourke KC acted for the former British Cycling and Team Sky team doctor in a tribunal case looking to strike them off for allegedly administering a prohibited substance to British Cycling’s elite competitors, alongside additional allegations with respect to prescription-only medicines. In addition, Mark Sutton KC addressed allegations of misconduct brought against the Medical Director of the Trust employing a breast surgeon previously found guilty of performing damaging surgery to patients. Betsan Criddle KC – taking silk in 2022 – acted on Burn v Alder Hey Children’s NHS Foundation Trust, proceedings covering the scope of a doctor’s right to disclose documents in an NHS disciplinary investigation.

London Bar > Employment

(Leading Silks)Ranked: Tier 2

Mark Sutton KC – Old Square Chambers ‘Mark demonstrates incisive and analytical advocacy skills; and he shows breadth of knowledge of complicated issues, especially in respect of the NHS.