Andrew Warnock

Call: 1993, QC: 2012
Queen’s Counsel (QC)

"Probably #1 in terms of developing the law in duty of care."
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Andrew specialises in public authority claims with particular expertise in social services, education, child abuse, highways, human rights and the police. He advises private and public bodies on duty of care, vicarious liability and limitation issues. He also undertakes professional indemnity work.

Andrew was made a Bencher of the Inner Temple in 2017 and a  Recorder in 2019.


Recent cases

  • Stoffel v Grondona [2019] : Represented the Respondent client in this solicitor’s negligence claim concerning the applicability of the illegality defence in conveyancing transactions. Judgment awaited.

  • Wells v Devani [2019] UKSC 4: Successfully represented the Appellant in the SupremeCourt in this case concerning contractual certainty, interpretation of contracts and implied terms.

  • James-Bowen v Commissioner of Police of the Metropolis [2018] UKSC 40: Successfully represented the Commissioner in the Supreme Court in this case concerning whether employers owe a duty of care to their employees in the way in which they conduct litigation.

  • Sumner v Colborne [2018] EWCA Civ 1006: Successfully represented the highway authority in this case which considered whether owners of property abutting the highway owe a duty of care to road users to maintain vegetation so as to preserve highway sight lines.

  • Piepenbrock v London School of Economics [2018] EWHC 2572: Successfully defended the LSE in a £multi-million claim for occupational stress and harassment brought by a former lecturer.

  • Aston Hall litigation: Acted for the Secretary of State for Health in devising a settlement scheme in respect of multiple claims brought by former patients of a paediatric psychiatric unit.

  • Manchester Arena Inquiry Currently acting for the Greater Manchester Combined Authority (which runs the Greater Manchester Fire and Rescue Service) in the public inquiry arising out of the terrorist attack in May 2017

Chambers & Partners and Legal 500 Rankings
Legal 500 2021

Personal Injury - Leading Silks - Tier 3 - ‘A silk of choice for local authority and abuse-type claims.’

Professional Negligence - Leading Silks - Tier 3 - ‘He delivers clear and practical advice.’

Police law - Leading Silks - Tier 3 - A determined yet calm silk.’

Chambers & Partners 2020

Personal Injury (Silks) – Band 2
Prominent defence counsel for serious historic sexual abuse cases, often involving multiple claimants and famous defendants. He is also a regular feature in the most complex and precedent-setting public liability cases. His broad personal injury expertise also encompasses psychiatric, brain and spinal injury claims. A go-to choice for many major insurers and clients from the public sector. "He's very good – a very straightforward and clear thinker."
Recent work: Successfully defended the London School of Economics in Piepenbrock v LSE, a £4 million occupational stress claim brought by a former academic. The claimant alleged that his teaching assistant had harassed him and that the LSE had mishandled an investigation into the matter.

Police Law (Silks) – Band 3
Has represented the police in their most serious legal challenges, including those before the Supreme Court. He has acted in relation to claims brought by officers as well as the general public, typically involving fatality and other grave matters. "Has extraordinary attention to detail and makes predictions with extraordinary regularity, particularly with how precise he is in the outcome. He is in complete command of every single page." "He knows his stuff and is a persuasive advocate but a reasonable man as well."
Recent work: Represented the Metropolitan Police in an appeal to the Supreme Court, where the court determined whether the force had a duty of care to protect the reputation and other interests of officers implicated in unlawful conduct, where the force had admitted liability.

Local Government (Silks) – Band 4
A highly respected personal injury specialist who regularly handles complex local authority matters. He has deep knowledge of duty of care cases and is routinely instructed in high-value claims concerning social care and education by a wide range of local authority and public bodies. He is particularly well known for his advisory work concerning compensation claims. "He's very quick to respond and forensic in his analysis."
Recent work: Instructed in Sumner v Colborne, a Court of Appeal case concerning whether highway authorities and landowners owe a duty of care to maintain vegetation on their land so as to prevent it interfering with sightlines on the highway.

  • London Common Law and Commercial Bar Association

  • Personal Injuries Bar Association

  • Professional Negligence Bar Association

  • Administrative Law Bar Association


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