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Shannon Thomas is a solicitor specialising in white-collar crime and investigations. He advises and represents individuals and corporates throughout the course of criminal and regulatory investigations and proceedings, from the earliest stages of an investigation through to its conclusion.

Shannon has experience advising on matters including fraud, bribery and corruption, financial crime, sanctions and other serious and general crime, as well as regulatory and enforcement matters. He has acted in matters involving the Financial Conduct Authority, Serious Fraud Office, National Crime Agency, HM Revenue & Customs, the Crown Prosecution Service and the Insolvency Service. He also advises corporates on compliance with relevant anti-bribery and corruption legislation, financial crime and regulatory compliance, and internal investigations.

Prior to joining Gherson, Shannon was an Associate at a specialist white-collar crime firm in London. He trained and qualified at the Crown Prosecution Service, gaining experience in serious and general crime and serious economic and organised crime, including through a secondment to the Financial Conduct Authority’s Enforcement and Market Oversight division, where he gained experience in regulatory enforcement matters.

Languages spoken: English
Notable Experience (prior to joining Gherson)
• Part of the legal team that represented the founder and Chief Executive Officer of a multi-billion-pound international finance company in directors’ disqualification proceedings arising from its collapse, and recognised as one of The Lawyer’s Top 20 Cases for 2026;
• Advising senior executives and corporates in relation to investigations by the Serious Fraud Office and other enforcement and regulatory authorities, including statutory information requests, evidential issues, disclosure and legal professional privilege;
• Advising high net-worth individuals under criminal investigation, including in preparation for police interviews, engagement with law enforcement authorities and overseeing matters that led to No Further Action outcomes;
• Advising corporates on anti-bribery and corruption matters, including the assessment of bribery risks, politically exposed persons, due diligence and compliance frameworks;
• Advising individuals and corporates in relation to complex fraud and financial crime matters, including allegations of fraud, embezzlement, insider trading and blackmail and the associated criminal, regulatory and civil consequences; and
• Advising on complex disclosure matters involving large volumes of material, including issues of legal professional privilege and the application of the Criminal and Civil procedure rules.
Admissions & Memberships

• Admitted as a solicitor in England and Wales: 2023

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