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Gavin Costelloe is a member of Greenberg Traurig’s White Collar Defense & Special Investigations Practice in London. Gavin is a former lawyer and prosecutor for the UK’s Serious Fraud Office (SFO). Gavin advises companies and individuals on internal, government and regulatory investigations and compliance issues related to the UK Bribery Act, fraud, market manipulation, anti-money laundering, economic sanctions, and other serious and complex cross-jurisdictional matters. Gavin has considerable experience assisting with diligence for mergers, acquisitions, and other investments including in jurisdictions with high corruption risk.

Gavin’s practice is focused on business crime investigation, defence, compliance, and risk mitigation. This includes assisting companies with internal, government, and regulatory investigations (including those conducted by the SFO, Her Majesty’s Revenue & Customs (HMRC), the Crown Prosecution Service (CPS) and the Competition and Markets Authority (CMA)), individual defence for senior executives and compliance professionals, and devising and implementing internal training and compliance progammes.

On 31 August 2023 the UK’s Office of Financial Sanctions Implementation (OFSI) issued a “Disclosure” against Wise Payments Limited, a UK-registered company, regulated by the

Continue Reading No Breach Too Small: OFSI Reports First Breach of UK’s Russian Sanctions Regulations

On 11 August 2023, the UK Department for Business and Trade issued a General Licence authorising the provision of legal advice in relation to sanctions

Continue Reading UK Government General Licence Reduces Breadth of Recent Sanctions-Related Legal Advisory Services Ban

These sanctions have been revealed following an announcement by the leaders of the G7 at this week’s G7 summit where they pledged to take action against Russia and as far as possible restrict its revenue and ability to continue the war against Ukraine.
Continue Reading UK Imposes New Russia Sanctions on 86 People and Companies, Including Metal and Diamond Industries