Mathew Cook

Partner

"An exceptional lawyer"

Legal 500 UK

Overview

Overview

I’m a Partner 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.

“Mathew is very, very cerebral and very, very practical, which is a rare combination.”

Chambers and Partners UK 2026

“A pragmatic litigator.”

Chambers and Partners UK 2026

“Regulatory experience and expertise adds real strength to the dispute resolution team.”

Chambers and Partners UK 2026

“A wealth of experience.”

Legal 500 UK 2026

“A remarkable ability to present complex legal issues in a simple and engaging manner.”

Legal 500 UK 2026

“An excellent advocate who charms the court with wit and clarity.”

Chambers and Partners UK 2025

“Technically excellent.”

Chambers and Partners UK 2025

“A measured and seductive style of approaching matters which is very helpful in persuading the court and indeed the other side to come round to his way of reasoning.”

Legal 500 UK 2025

“A bright and innovative lawyer in the regulatory and financial crime legal world of the Chanel Islands.”

Legal 500 UK 2025

“Mathew is excellent. He hits the mark and gets the results.”

Chambers and Partners UK 2024

“Mathew is an outcome-focused and thorough litigator.”

Chambers and Partners UK 2024

“Excellent, user-friendly practitioner.”

Legal 500 UK 2024

“An exceptional lawyer.”

Legal 500 UK 2023

“Demonstrates wide subject matter knowledge, is responsive, approachable and able to make complex subject matter understandable.”

Legal 500 UK 2023

“Mathew Cook leads the contentious regulatory side, and has become the go-to person in Jersey for businesses and individuals facing regulatory or financial crime issues. I have experience of him dealing with matters raised by the JFSC, the Attorney General or directly by clients. He provides reassuring and commercial advice to identify the multiple risk issues which may arise. He guides his clients through the best way to tackle each issue to achieve the best outcome.”

Legal 500 UK 2022

“Mathew Cook has good regulatory knowledge and gives detailed thoughtful advice. He is an excellent lawyer who provides a commercial insight that few others in the regulatory sphere can match.”

Legal 500 UK 2021

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