Trevor Wiles is a Partner in FRA’s London Office in the Forensic Accounting team. He has more than 30 years’ experience in forensic services focusing on helping clients and their legal advisors to navigate complex and multi-jurisdictional contentious matters resulting from whistle blower and or regulator actions.

Trevor specializes in helping clients respond to serious misconduct allegations including bribery and corruption, accounting misstatement, money laundering, embezzlement, procurement fraud, sanction breaches, channel stuffing, and asset misappropriation. He has supported clients with disgorgement and fine calculation analysis with regard to settlements with prosecuting authorities. Most recently, he supported Entain plc in relation to a HM Revenue & Customs investigation, resulting in the first ever DPA with the UK Crown Prosecution Service and a £585 million settlement (Dec 2023).

Trevor has worked for organizations across a variety of industry sectors, with significant experience in energy and natural resources, financial services, telecoms, pharmaceuticals, and manufacturing. His geographical experience extends throughout Europe, Middle East, Africa and Asia. Since the pandemic Trevor has successfully completed multi-jurisdictional matters entirely remotely, including the collection of relevant data and undertaking of interviews.

Working in close collaboration with clients and their legal advisors, Trevor brings a multi-disciplinary approach to complex contentious matters, for example involving forensic technology, data analytics and other specialists to help identify crucial evidence faster and more effectively.

Trevor also applies his investigations expertise to advising clients on the implementation of robust compliance programs, including ABC and anti-fraud programs. This assures clients of a thorough and focused approach when undertaking fraud and compliance risk assessments, identifying the root causes of compliance failures, introducing proportionate controls to mitigate identified risks, and testing the effectiveness of their existing compliance programs.

Prior to joining FRA, Trevor spent 20 years in the London Forensic team at KPMG. Trevor is a Fellow of the Institute of Chartered Accountants in England and Wales.

Authority experience

The Financial Conduct Authority (FCA)
Serious Fraud Office (SFO)

Awards & Recognition

2023 Global Leader - Consulting Experts - Forensic Accountants, Who's Who Legal

2022 Thought Leaders - GIR - Investigations Digital Forensic Experts, Who's Who Legal

2022 and 2023 Global Leader - Investigations Digital Forensic Experts, Who's Who Legal


Fellow Member of Association of Chartered Certified Accountants (ACCA)



News and insights


FRA Experts Recognized in Who’s Who Legal Investigations - Forensic Accountants


FRA's 25 Year Celebration in London


Disclosure: Lessons From the UK Post Office Horizon Inquiry