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Carey Olsen

Work 01481 727272
Fax 01481 711052

John Greenfield

Work +44 (0)1481 732026
Carey Olsen

Work Department

Dispute Resolution and Litigation


John is a partner and advocate in the litigation and dispute resolution group in Guernsey.  John undertakes the complete range of major litigation and advocacy work including asset tracing, multi-jurisdictional disputes and commercial and trust litigation.  John has been counsel in many of the major litigation cases before the Royal Court of Guernsey and the Guernsey Court of Appeal and is one of the few Guernsey advocates to have appeared as counsel in the Privy Council.  He has been lead counsel in ground-breaking trust litigation cases in the past 12 months including the much awaited Tchenguiz family trust litigation in which the Privy Council judgment was published in April and a further important commercial dispute in which a judgment is currently awaited from the Court of Appeal.  John had previously obtained a unique Order of the Guernsey Court putting the Tchenguiz Trust assets into receivership.  John was founder member of the Guernsey Royal Court working party which completely reviewed the Island's civil procedure in 2008 and is a member of the UK Fraud Advisory Panel.


Solicitor and partner, England 1975; in-house counsel and trust manager for an international merchant bank in Guernsey 1980; qualified as advocate with the firm and became partner 1986.


English, written French.


UK Fraud Advisory Panel; founder member and only Guernsey member of Fraudnet (set up by the International Chamber of Commerce for its members) and currently a member of its Advisory Board; member Guernsey Royal Court working party.  Association of Contentious Trust and Probate Specialists; John was the first elected Head of the Guernsey Bar in November 2008 and was re-elected to the role in 2010.


University of Hull, Université de Caen Basse-Normandie (1992 Certificat d’Etudes Juridiques Francaise et Normandes); Notary Public 1986.


Dispute resolution

Within: Leading individuals

John Greenfield - Carey Olsen

Within: Dispute resolution

Carey Olsen fields a ‘consistently strong team’ which clients describe as ‘adaptable’, ‘results-driven’, ‘pre-eminent’ and ‘second to none’. Among the key names to note is the ‘conscientious, cooperative, approachable and sensibleKaren Le Cras, whose ‘wealth of experience and sound instincts’ make her a client favourite, alongside the ‘extremely bright and effectiveElaine Gray. On the trust front, John Greenfield and Gray continue to act for the joint liquidators in the landmark Tchenguiz case, and Le Cras represented the trustee of a retirement plan in a Hastings-Bass application by one of its beneficiaries. Tim Corfield is ‘the best litigator on the island’, according to one client, and recently obtained the court’s approval on behalf of NYX Gaming with regard to its acquisition by Scientific Games via a scheme of arrangement. The team also frequently defends insurers and medical professionals in mistreatment and negligence claims, handles commercial disputes arising out of insolvencies, and advises clients on issues including asset tracing, fraud claims and regulatory breaches. Counsel David Jones is also a key contact.

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Legal Developments in Guernsey

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to
  • In re B; B v T (Court of Appeal, 11 July 2012)

    A trustee's duty of confidentiality has recently been discussed and to some extent clarified in the recent Guernsey Court of Appeal decision of In re B; B v T (Court of Appeal, 11 July 2012). This summary has been prepared to provide you with a summary of the case as well as the general issues raised, but is not intended to cover all matters or to provide commentary.   This summary does not constitute legal advice.
  • The Company Administration Regime in Guernsey

  • Guernsey Image Rights Legislation

    The Image Rights (Bailiwick of Guernsey) Ordinance 2012 (the Ordinance) and The Image Rights (Bailiwick of Guernsey) Regulations, 2012
  • Guernsey Foundations

    The Foundations (Guernsey) Law, 2012 (Law) is awaiting Royal assent, expected to be given by the end of the year or early next year. Whilst Guernsey is not the first jurisdiction to provide for foundations, the Law does provide a number of unique options for individuals wishing to take advantage of the benefits provided by foundations. The purpose of this note is to provide both a general summary of the features of a Guernsey foundation, as well as a summary of these unique options that will be available under the Law.
  • Competitive Guernsey

    Guernsey has been considering the introduction of local competition law since at least 2005 and by bringing into effect The Competition (Guernsey) Ordinance, 2012 on 1 August 2012, has introduced an effective Competition Law regime, to regulate the same 3 core areas recognized in most competition regimes, namely the abuse of a dominant position, anti-competitive arrangements, and mergers and acquisitions.
  • Friendly Rivalry? The Competition Laws of the Channel Islands

    • New Competition Law for Guernsey in force on 1 August 2012 • Jersey and Guernsey now both regulate the abuse of a dominant position, anti-competitive arrangements, and mergers and acquisitions • Key differences between the islands' competition laws • Overall, a pan-Channel Island approach to regulation
  • Channel Islands Stock Exchange (CISX) Rule Change Update

    Ogier Corporate Finance Limited (OCFL) is the market leader in providing listing agent services for the listing of securities on the Channel Islands Stock Exchange (CISX or the Exchange) having sponsored over 445 listings.
  • Channel Island Stock Exchange, LBG - Listing of Securities of Investment Funds

    The Channel Islands Stock Exchange, LBG (the Exchange or CISX) commenced operations on 27 October 1998 and is intended to provide recognised facilities for the listing and trading of securities issued by companies and investment funds.
  • Investment funds in Guernsey

    The investment funds industry in Guernsey has achieved significant growth in recent years. Statistics show that as at 30 June 2011 there was £274.5 billion of assets under management in Guernsey.
  • Guernsey Companies Law - Office of the Registrar of Companies

    This memorandum has been prepared for the assistance of our clients in connection with the provisions relevant to the Office of the Registrar of Companies under the Companies (Guernsey) Law, 2008 (as amended) (the “Companies Law”).