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David Gray-Jones

Position: Partner
Offices: London City - Liverpool Street, , Canary Wharf
telephone: 020 7426 4904

David Gray-Jones


David qualified as a solicitor in 2000 and has specialised in employment law since then. Before joining ThomasMansfield, David worked for leading firms in London and the regions and has acted for both private and public sector employers as well as employees.


David carries out a wide range of contentious and non-contentious employment work including cases involving breach of contract, unlawful deductions from wages, unfair dismissal, restrictive covenants, TUPE, redundancy, disciplinary and capability issues, all types of unlawful discrimination and bullying and harassment. He has substantial experience of the healthcare and charitable sectors. He regularly acts for senior employees in the City.

David is a solicitor-advocate with rights of audience in all proceedings and regularly represents clients before Employment Tribunals and has received impressive recommendations:

"David Gray-Jones is an excellent advocate: calm, knowledgeable, confident and assured."  Daniel Barnett, employment barrister, Temple Garden Chambers

David has a particular interest in human rights law. He has appeared before the Supreme Court and Court of Appeal in a British overseas territory in a case involving the applicability of the Human Rights Act 1998 under local law relating to employment, He is also interested in the law relating to public interest disclosures ("whistleblowing"). He has appeared in the Court of Appeal in a leading case on the interpretation of the Working Time Regulations 1998.

Areas of expertise include:


  • Drafting and advising on the application of dismissal, disciplinary and grievance procedures
  • Advising on the legal aspects of conduct and performance dismissals
  • Transfer of undertakings and employment law aspects of business sales
  • Collective consultation and redundancy
  • Advising on all aspects of discrimination law
  • Disputes concerning worker and employment status 
  • Variation of contract


  • Advising on unfair dismissal claims
  • Whistleblowing
  • Pay and bonus disputes
  • Discrimination claims
  • Contractual disputes
  • Executive and director level terminations and negotiations
  • Settlement agreements
  • Advising on contracts and restrictive covenants

Notable transactions and cases 

  • Hughes v The Corps of Commissionaires Management Ltd EWCA Civ 1061, [2011] IRLR 915  - entitlement to rest breaks and compensatory rest under Regulations 12 and 24 of the Working Time Regulations 1998
  • Dabson v David Cover & Sons Ltd UKEAT/0374/10  - reasonableness of consultation and selection in redundancy dismissal.
  • Cavendish Munro Professional Risks Management Ltd v Geduld (2009) EAT - Definition of a protected disclosure.
  • Larry Francis v Attorney General 2009, St Helena Court of Appeal - application of the Employment Rights Act 1996 and Human Rights Act 1998 to British Overseas Territories.
  • Hunt v Storm Communications, Wild Card Public Relations and Brown Brothers Wine (Europe) Ltd (2007) ET - First case on transfer of a professional services employee when client account moves under Transfer of Undertakings (Protection of Employment) Regulations 2006.
  • Aspinall v MSI Mech Forge Ltd (2002) EAT - The correct test to be applied by an Employment Tribunal when deciding whether an employee has been dismissed or subjected to a detriment on the grounds that they made a protected disclosure.

Client Testimonials

"Excellent service!  David kept me fully informed and advised me of risks of various decisions.  It is his professional approach that helped me to secure the desired outcome.  He deserves a lot of credit."


  • The Law Society
  • Employment Lawyers Association
  • Solicitors Association of Higher Court Advocates