Investigations | Fieldfisher
Skip to main content


Our internationally-recognised specialists advise and represent some of the world's best-known companies and their leaders in domestic and cross-border, internal, and regulator-facing investigations.

We have acted in some of the most high-profile investigations over the past 15 years.

We work calmly, intelligently and swiftly to minimise the risk, reputational harm and disruption of issues with potential civil, regulatory or criminal repercussions.

Work and expertise

We act for clients across multiple sectors including energy and extractives, financial services, technology, life sciences, fast-moving consumer goods, engineering and transport, logistics, telecoms, healthcare and sport.

Our work covers allegations and concerns relating to: antitrust, bribery & corruption, money laundering, tax evasion, fraud, theft, sanctions, discrimination & harassment, and data breaches.

  • Acting for Alstom in the largest contested corporate corruption case in UK history
  • Acting for senior individuals as part of the Rolls-Royce bribery investigation 
  • Acting for a senior individual as part of the Rio Tinto corruption investigation
  • Acting for Wirecard AG as part of the well-publicised cross-border investigation across nine jurisdictions in relation to allegations of fraud and money laundering.
  • Conducting an independent investigation on behalf of a large international intergovernmental organisation on alleged systemic malpractice in handling harassment complaints
  • Conducting an independent investigation on behalf of an English university into whistleblowing allegations relating to cyber security
  • Acting for an international financial institution in connection with the internal cross-border investigation of sexual harassment allegations against a senior employee.
  • Acting for two leading global investment banks on the credit default swaps, foreign exchange rates manipulation and loan syndication antitrust investigations in the EU, US and Asia
  • Acting for a major Asian airline in the air cargo cartel antitrust investigation and an auto-part manufacturer on the auto-parts antitrust investigation in the EU and US.

Public law

  • Acting as solicitors to public inquiries including the Independent Inquiry into Child Sexual Abuse; the Manchester Arena Inquiry; the Dawn Sturgess (Salisbury Novichok poisoning) Inquiry; the UK Covid-19 Inquiry; the Inquiry into the death of Alexander Litvinenko
  • Advising core participants and others involved in public inquiries including the Grenfell Tower Inquiry and the Infected Blood Inquiry
  • Acting as Solicitors to the inquests into the deaths of Diana, Princess of Wales and Dodi Fayed; the 7/7 London Bombings; the Hillsborough Inquests and the deaths of the four men murdered by Stephen Port
  • Assisting Lord Dyson in connection with his investigation into the circumstances around the Panorama interview with Diana, Princess of Wales.

Related experience and expertise

Risk advisory & compliance: Our unique experience in high-profile regulatory enforcement actions and sensitive cross-border internal investigations has allowed us to provide extraordinary perspective for our clients in relation to risk advisory, corporate compliance and ESG including through the implementation and evolution of corporate compliance programmes.

We have assisted a number of companies to successfully navigate and satisfy the terms of settlement agreements entered into with regulators including the US Department of Justice.

Training: We have provided training and advice to clients in relation to dawn raids, conducting interviews, creating investigation plans, whistleblowing, making use of technology in remote investigations, managing data in cross-border investigations, and due diligence.