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Website Jon Barclay (1)

Jon is highly rated for his presence in court. He advises institutions, law firms and in-house teams worldwide across the range of international financial services litigation. He has a close interest in cross-border enforcement and asset recovery and has received particular recognition for his work in the fraud arena, with freezing injunctions and related orders.

Jon began his legal career in 1999 as a barrister in the chancery and commercial group at leading UK set No. 5 Chambers. He returned to his home island of Guernsey six years later and was admitted as an Advocate of the Royal Court in 2006.

Jon is also a Notary Public for the Bailiwick of Guernsey.


  • Advocate - Guernsey
  • Notary Public - Guernsey
  • Barrister - England & Wales
  • ACAMS - CAMS (certified anti-money laundering specialist)
  • Chancery Bar Association 
  • Institute of Directors
  • INSOL International, Insolvency Lawyers Association

Industry Focus

  • Jon is a director of the Institute of Law, Guernsey.
  • He is a contributor to the Jersey and Guernsey Law Review.


  • 'Leading Lawyers' category - 2018, 2017 Citywealth Leaders List
  • Band 3 'Leader in their field' - Chambers UK, Europe and Global 2023, 2022, 2021, 2020, 2019, 2018 and 2017
  • 'Honours List' in the 'Leading Lawyers Contentious Trusts' category - 2016, 2015 and 2013 Citywealth Leaders List
  • 'Prominent Figure' in the 'Leading Lawyers Contentious Trusts' category - 2015 and 2013 Citywealth Leaders List
  • Listed as an 'Asset Recovery Expert' and an 'Investigations Expert' - Who's Who Legal
  • Jon is very good at dealing with clients and he knows his way around the island's law. He's very impressive.

    Chambers & Partners

  • Jon Barclay – excellent judgment, knowledge and experience. The best on the Island.

    Legal 500

  • Main work recently has been with with Jon Barclay and Rebecca Hale who are always a pleasure to work with on any matter. Both approachable, knowledgeable and provide clear, logical advice based on the situation at hand.

    Legal 500

  • Jon Barclay is a brilliant advocate and innovative in his approach to tricky situations. He knows the Guernsey bench really well which is invaluable when seeking urgent relief.

    Legal 500

  • He is very intelligent, extremely thorough and an excellent advocate.

    Chambers & Partners