Betsan Criddle KC > Chambers of Oliver Segal KC > London, England > Lawyer Profile

Chambers of Oliver Segal KC
Old Square Chambers
Betsan Criddle KC photo

Work Department

Employment and discrimination law; personal injury.


All areas of employment and discrimination law and professional discipline, including High Court contractual and disciplinary disputes, industrial action injunctions and judicial review proceedings. Recent highlights include: R (FBU) v SYFRA [2018] EWHC 1229 (Admin) (successful judicial review of working pattern in breach of WTR 1998); Coletta v Bath Hill Court (Bournemouth) Property Management Ltd UKEAT/0200/17/RN (whether recoverability of deductions from wages is subject to the Limitation Act 1980 and a six year back stop); Galilee v Commissioner of Police of the Metropolis [2018] ICR 634 (no requirement to resolve if claim in time in deciding whether to grant permission to amend); Wandsworth LBC v Vining [2018] ICR 499 (exclusion of those in police service from trade union employment rights incompatible with Article 11 of the European Convention on Human Rights).


MA (Hons) Law, St John’s College, Cambridge. Called to the Bar 2002


Employment Precedents and Company Law Documents (Sweet & Maxwell); Employment Law Review (Institute of Employment Rights); Employment Tribunal Procedure (LAG).


Fluent Welsh speaker and able to conduct litigation through the medium of Welsh.




Ysgol Gyfun Gwynllyw, Pontypool; St John’s College, Cambridge (2000 MA Hons).

Lawyer Rankings

London Bar > Professional disciplinary and regulatory law

(2022 Silks)Ranked: Tier 1

Betsan Criddle KCOld Square ChambersBetsan has encyclopaedic knowledge of MHPS case law and has represented practitioners in a number of key cases. Excellent advocate, well prepared and persuasive.

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

(2022 Silks)Ranked: Tier 1

Betsan Criddle KC  – Old Square Chambers ‘Fantastic brain, great advocate, works really well with the client (solicitor and lay client), and particularly brilliant knowledge of case law for doctors’ disciplinary cases. Her ability to ensure that a complex case is well presented and set out for tribunals and panels is a particularly great asset.

Old Square Chambers‘ members regularly appear in the appellate courts, test cases, and factually and legally complex trials; and the set is increasingly acting for more than one party in challenging cases, while also experiencing larger volumes of sensitive investigations. In the Court of Appeal, four silks and two juniors from chambers appeared for various parties and intervenors in a test case on whether foster carers have worker status (NUPFC v Certification Officer and others), namely: Lord Hendy KC, Ben Collins KC, Ben Cooper KC and Katharine Newton KC, along with senior junior Robert Moretto and Madeline Stanley. Betsan Criddle KC took silk in March 2022. Cooper KC also successfully represented both the claimant in Forstater v CGD Europe & others, a high-profile case concerning protection against discrimination in employment for holding gender-critical beliefs; and barrister Allison Bailey in her claim against her chambers for discrimination on similar grounds; however in that case the claim against co-respondent Stonewall, represented by Ijeoma Omambala KC and Robin White, was unsuccessful.