Department profile
23ES (23 Essex Street Chambers)

Professional Discipline

UK Bar Guide 2026 : London (Bar)

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23ES (23 Essex Street Chambers)

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About

Provided by 23ES (23 Essex Street Chambers)

23ES Chambers has a well recognized reputation and established team for providing excellent services across multiple practice areas in the Regulatory and Professional Disciplinary sector.

The team is led by Paul Ozin KC who is well known and respected by his peers and regulator/solicitor clients alike, recently winning Professional Disciplinary Silk of the year 2025 at the Legal 500 awards. The team boast a heavy presence in the market for senior junior counsel also, with several members ranked throughout the legal directories and consistently nominated for awards. 

 

Clients range from regulators in healthcare such as the GMC/GDC, financial services with ACCA and ICAEW and professional services work from the SRA and multiple police forces. 23ES has secured a far stronger presence within the defence market in recent years and has seen a considerable increase in the number of instructions received. This has been achieved by the implementation of a strategic growth plan which has focussed on targeting clearly defined individuals and firms within the relevant sector. New relationships have been fostered and existing ones strengthened. Members of the team are instructed at all levels because of their depth of knowledge and skill in an extremely broad range of disciplines, including criminal law.

Members of the team regularly appear in appellate cases in the first-tier and upper tribunals as well as the High Court (Admin) and the Court of Appeal. 

Clients (26)

  • Kingsley Napley
  • JMW
  • Richard Nelson LLP
  • DAC Beachcroft
  • Hempsons
  • Weightmans
  • Clyde & Co
  • Regulatory Defence
  • GDC
  • GMC
  • RCN
  • GPhC
  • ACCA
  • ICAEW
  • SRA
  • IOPC
  • MPTS
  • Blackfords
  • Thompsons
  • Capsticks
  • Medical Defence Shield
  • Blake Morgan
  • Association of Optometrists
  • Police Federation of England and Wales
  • Environment Agency (EA)
  • Environment Agency (EA)

Chambers Review

Provided by Chambers

Professional Discipline - London (Bar)

Band 3

What the Team is Known For

23ES is a well-established regulatory chambers offering strong expertise in medical, legal and financial services misconduct work. The barristers are able to deftly handle the criminal interface arising in such cases, and members are often instructed in cases that set legal precedent. Recent highlights include defending doctors at GMC hearings against allegations including exam cheating and sexual harassment. An interviewee highlights that the set "offers very professional but user-friendly barristers and clerks".

Daniel Randall is senior regulatory and professional disciplinary clerk.

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Strengths

Provided by Chambers

  • 23ES's clerks are very good. They're very experienced and effective, with impressive sector knowledge.

    Professional Discipline respondentUK Bar

  • The clerks have always been really helpful.

    Professional Discipline respondentUK Bar

  • The clerks are very responsive and helpful.

    Professional Discipline respondentUK Bar

Notable Practitioners

Provided by Chambers

  • Paul Ozin
    Paul Ozin

    Paul Ozin

    Paul Ozin KC enjoys a formidable reputation for his work on behalf of doctors, dentists and police officers. He is also instructed by regulators, including the GMC, GDC, SRA and Association of Chartered Certified Accountants. He regularly handles statutory appeals as well as disciplinary hearings.

    • Paul is a genuine professional discipline expert.

      Professional Discipline respondentUK Bar

    • Paul Ozin KC is a phenomenal advocate with a truly astonishing intellect. He has superb judgement and is tactically and strategically astute.

      Professional Discipline respondentUK Bar
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  • Chris Hamlet
    Chris Hamlet

    Chris Hamlet

    Chris Hamlet is a knowledgeable barrister who manages an expansive regulatory practice which includes a heavy focus on professional discipline cases. In addition to prosecuting for regulators such as the GDC, GMC and General Chiropractic Council, he defends other professionals including solicitors. He also sits as a legal assessor for the Royal Institute of Chartered Surveyors and the Intellectual Property Regulation Board, and is a Chair of the Disciplinary Commission of the Football Association.

    • Chris is a safe pair of hands who provides a very consistently good level of service to clients.

      Professional Discipline respondentUK Bar

    • Chris Hamlet is absolutely excellent. His legal arguments are really well set out and he really endears himself to the panel.

      Professional Discipline respondentUK Bar

    • Chris Hamlet is effortlessly user-friendly: he is engaging, responsive, and quick but comprehensive. A sensible, pragmatic and charming barrister, Chris is always switched on tactically.

      Professional Discipline respondentUK Bar
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  • Rebecca Vanstone
    Rebecca Vanstone

    Rebecca Vanstone

    Rebecca Vanstone frequently acts for healthcare regulators, in particular the GMC and GDC. She has strong experience in cases relating to misconduct and clinical deficiency.

    • Rebecca is a pragmatic and solution-focused advocate.

      Professional Discipline respondentUK Bar

    • Rebecca is superb counsel to work with. She is tactical, forward-thinking and very well versed in the area of professional regulation.

      Professional Discipline respondentUK Bar

    • Rebecca Vanstone is an excellent advocate and she prepares cases to a meticulously high standard.

      Professional Discipline respondentUK Bar
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Ranked Barristers at 23ES (23 Essex Street Chambers) (3)

London (Bar)

Members

Provided by 23ES (23 Essex Street Chambers)

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