Photo of Gavin Costelloe

Gavin Costelloe is a senior associate in 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 12 July 2022, the UK’s Office of Financial Sanctions Implementation (OFSI) and various other UK government agencies issued a red alert, in conjunction
Continue Reading UK Law Enforcement Identify Common Sanctions Evasion Tactics and Use of UK-Based ‘Enablers’

On 15 June 2022, the UK Office of Financial Sanctions Implementation (OFSI) implemented important changes to its enforcement powers and updated its “Monetary Penalty” guidance.
Continue Reading New Era in UK Sanctions Enforcement: Introduction of Strict Liability Standard and OFSI Guidance Update