John is managing partner and advocate in Carey Olsen's 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.  

John was a 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. He is a founder (and only Guernsey) member of Fraudnet. He is also a member of the Association of Contentious Trust and Probate Specialists and is a Notary Public. John was the first elected Head of the Guernsey Bar in November 2008 and was re-elected to the role in 2010. In 2014 John was awarded ACTAPS Offshore Contentious Lawyer of the Year Award. In 2015 he was awarded the "most highly regarded" classification for Asset Recovery by Who's Who Legal – one of only five offshore lawyers in the world to be awarded such accreditation. Carey Olsen has been awarded Asset Recovery Law Firm of the Year in Guernsey for the past 2 years by Who's Who Legal.