Mathew Cook > Mourant > St Helier, Jersey > Lawyer Profile


Work Department



I’m a Partner of Mourant Ozannes (Jersey) LLP in our Jersey Litigation practice, and part of our specialist financial services and regulatory team as my primary focus is on regulatory work.


My work includes advising on compliance with the regulatory laws, anti-money laundering regime, sanctions, information requests and data protection. I am particularly experienced in advising on cases where potential breaches of requirements have been identified, and in advising on investigations, remediation and enforcement.

In addition, I also have experience advising financial institutions on a wide range of high-profile multi-jurisdictional banking, corporate, funds, trust and property disputes.

I’m also experienced in dealing with contentious employment matters and insolvency issues. In recent years, I’ve acted in a number of leading cases on challenges to TIEA notices and advised on mis-selling claims against banking institutions.
I am part of a team of specialists advising businesses on data protection matters including working with clients to ensure that their policies, procedures and third-party contracts can demonstrate compliance with data protection legislation, drafting information notices to meet the required standards of transparency and advising on the legality of international transfers of personal data.


  • Called to the Jersey Bar, July 2008
  • Legal Practice Course certificate from the College of Law



  • Degree in law and accounting from Kingston University

Lawyer Rankings

Jersey > Dispute resolution > Dispute resolution

(Next Generation Partners)

Mathew CookMourant

Jersey > Dispute resolution > Regulatory and white-collar crime

(Next Generation Partners)

Mathew CookMourant

Clients praise the team at Mourant for having ‘an incredible depth of knowledge, with individuals having obtained valuable experience in the public sector.‘ The group is drawn together from lawyers in the litigation, finance and corporate practices, handling a mixture of contentious and non-contentious regulatory issues, as well as white-collar criminal defence cases. Taking the lead on the non-contentious financial services side, Simon Gould and Sarah Huelin are experts in the establishment of regulated entities in Jersey. Mathew Cook  is the name to note for contentious work, and is often instructed in regulatory cases, as well as assisting clients in the white-collar criminal defence space.