
11KBW
England
Barristers

Patrick Halliday
- Phone020 7632 8500
- Email[email protected]
Position
Barrister at 11KBW.
Career
Called 2005, Gray's Inn. Specialist in procurement, employment, pensions and public law. Member of the Attorney General's 'A' Panel of Counsel (since 2021, having previously sat on the 'B' and 'C' panels). Named 'Barrister of the Week' in The Lawyer magazine, June 2021. Between 2008 and 2011, junior counsel to the Baha Mousa Public Inquiry. Joint editor of 11KBW's Procurement & State Aid Briefing.
Recent cases include: Cyberfort Ltd v Lord Chancellor [2026] EWHC 1760 (TCC) (procurement, cyber security); Cubic Transportation Systems Ltd v Transport for London (procurement, Oyster fare system); Rubery v Ministry of Defence [2026] EWCA Civ 8 (employment, human rights); R (British Gas and others) v SoS for Energy Security and Net Zero [2025] EWCA Civ 209 ('Bulb') (subsidy control); Triton Investment Advisors LLP & others v Lapinski [2025] EAT 77 (employment tribunals' international jurisdiction over overseas respondents); Leeks v Royal Marsden NHS Foundation Trust [2024] EAT 178 (limitation rules under NHS whistleblower regulations); Aon UK Ltd and others v Howden Group Holdings Ltd and others (2024-2026) (team move litigation); Manning v Walker Crips [2023] IRLR 729 (EAT) (employment status of stockbroker); R (Efthimiou) v City of London [2022] EWHC 1588 (Admin) (public/discrimination, charges at Hampstead Ponds); R (Gardner) v SoS for Health and Social Care [2022] PTSR 1338 (public, care home deaths during the pandemic); R (Good Law Project) v Minister for the Cabinet Office [2022] PTSR 933 (procurement, bias and emergency awards); R (Good Law Project) v SoS for Health [2022] PTSR 644 (procurement, unlawful 'VIP lane'); R (Enterprise Managed Service Ltd) v SoS for Housing, Communities and Local Government [2021] Pens LR 15 (pensions, LGPS exit credits); Lloyds Banking Group Pensions Trustees Ltd v Lloyds Bank Plc [2021] Pens LR 10 (pensions, equalisation of GMPs, transfers out); R (BT plc) v HM Treasury [2020] EWCA Civ 1 (pensions, indexation); and Curless v Shell International Ltd [2020] ICR 431 (employment, legal advice privilege).
Memberships
ELBA, ALBA, ELA, PLA and COMBAR.
Education
Pembroke College, Cambridge (BA Hons, Social and Political Sciences, 1st); City University (Diploma in Law, Distinction).