About Caroline
Caroline is an investigations specialist. She advises organisations and individuals caught up in serious and complex criminal and regulatory investigations. She has extensive experience in this area and conducts internal investigations on behalf of her corporate clients when allegations of misconduct arise.
Caroline advises companies and individuals in connection with investigations by enforcement authorities including the SFO, FCA, HMRC CMA and various regulatory bodies. Much of Caroline’s work is sensitive, high profile and multi-jurisdictional.
Caroline advises clients in a wide range of cases in the white collar and business crime sphere, in cases involving allegations of serious fraud, money laundering, corruption, cartels, and environmental crime, alongside other alleged misconduct. Caroline has extensive experience conducting internal investigations and reviews on behalf of organisations, and her cases often span multiple jurisdictions.
In addition, Caroline represents individuals facing a broad range of criminal and regulatory investigations. She acts as an Independent Legal Advisor (ILA) representing clients in internal investigations and compulsory interviews with the authorities, and representing clients in interviews under caution.
Alongside her fraud and investigations practice, Caroline has public law experience; she represented a number of military witnesses before the Baha Mousa Public Inquiry, and advised in connection with the Independent Inquiry into Child Sexual Abuse, led by Professor Alexis Jay.
Caroline was named in Global Investigation Review’s Top 100 Women in Investigations survey 2018, a survey profiling one hundred investigations specialists from around the world. She co-author’s the chapter on witness interviews (UK perspective) for GIR’s The Practitioners Guide to Global Investigations, and is the Vice Chair of the Fraud Lawyers Association. She is also listed in the Lexology Index Investigations Report 2025 as Recommended. Caroline is also listed as a Leading Partner in Legal 500 and is ranked in Chambers UK.
Insights from Caroline
A new Annual Plan for the Competition and Markets Authority
Corporate Criminal Liability: The Law Commission’s ten options for reform
Company investigations: Common traps and how to avoid them
Competition enforcement – a sector approach
Breach of 2002 banking undertakings – the CMA writes to Danske Bank
Alun Milford, Caroline Day, Áine Kervick & Phil Salvesen contribute to the International Comparative Legal Guide: Corporate Crime 2021
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