Ailsa Williamson > Chambers of James Lewis KC & Hugo Keith KC > London, England > Barrister Profile

Chambers of James Lewis KC & Hugo Keith KC
Three Raymond Buildings


A specialist in professional discipline cases, inquests, criminal work, and regulatory law.

Ailsa represents police officers at gross misconduct hearings throughout the country and has a detailed knowledge of Officer Safety Training, Pursuit Policies, RIPA and PACE. She has recently represented officers facing allegations in relation to contact with moped riders, supervision in custody suites, force used during arrests (including tasers) and inappropriate relationships. She regularly appears at Police Appeals Tribunals and in judicial reviews arising from misconduct proceedings.

Ailsa is a specialist in inquests into deaths in police custody or following police pursuits having been involved in a number of high-profile inquests. Her extensive experience means she is well placed to advise clients throughout the entire inquest process from identifying relevant evidence, issues that may arise when witnesses give evidence, potential conclusions at the inquest and considerations for Preventing Future Deaths Reports.

Her criminal practice encompasses serious violent or sexual offences, organized crime and fraud. She predominantly defends and is very experienced in questioning vulnerable witnesses. This year she has represented a police officer charged with membership of a proscribed right-wing organisation, a police officer charged with perverting the course of justice and the first police officer to be charged with murder whilst on duty.

Ailsa prosecutes for the Fire Authority, undertakes health and safety cases and is experienced in taxi / PHV licensing cases.


Called to the Bar 1997


Criminal Bar Association; Association of Regulatory & Disciplinary Lawyers; CBA Working Party on the draft Corruption Bill (2003).



MA (Cantab) History; Dip Law (City)

Lawyer Rankings

London Bar > Police law (forces and constables)

(Leading Juniors)Ranked: Tier 2

Ailsa WilliamsonThree Raymond Buildings

London Bar > Crime

(Leading Juniors)Ranked: Tier 3

Ailsa Williamson – Three Raymond Buildings

London Bar > Inquests and inquiries

(Leading Juniors)Ranked: Tier 5

Ailsa WilliamsonThree Raymond Buildings

Three Raymond Buildings is ‘a great set with a number of hugely impressive KCs and juniors‘ with key strengths in coronial law, with many members of the set regularly appearing in cases for police forces and officers. Hugh Davies OBE KC draws on his expertise in police law to represent police authorities and officers in inquests; his recent caseload includes acting as lead counsel to West Yorkshire Police Inquest relating to the death of a suspected leader of an organized crime group who was found to have been lawfully killed by armed officers. In other major matters, Hugo Keith KC continues to act as lead counsel to the Covid-19 Public Inquiry. Within the junior pool, Kevin Baumber has an extensive practice in Article 2 inquests, and Ailsa Williamson is representing the officers who detained a man who died following cocaine use and police restraint in the inquest into his death.