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Deloitte has one of the largest forensic practices in the world with over 1400 dedicated practitioners in over 30 countries. Our services are increasingly sought by companies and lawyers who require detailed investigations to be undertaken or disputes to be resolved. Our Forensic group includes forensic accountants, legal and law enforcement specialists, and business intelligence experts. Our teams use state-of-the-art forensic technology to ensure that data is handled with maximum efficiency.  

Service highlights

  • General Counsel – The Risk Revolution
    Deloitte Forensic published its latest General Counsel survey, The Risk Revolution, which was conducted in conjunction with Legal Week Intelligence. Last year’s survey considered who owns the risk and compliance agenda. This year we have looked at some of the key issues General Counsel are dealing with as well as some of the challenges being faced.
  • The Internal Audit Fraud Challenge - Prevention, protection, detection
    Deloitte’s Internal Audit Fraud Challenge: prevention, protection, detection report seeks to uncover how the continued economic uncertainty and changes to the regulatory environment have influenced organisations’ focus on fraud risk and understand what impact this is having on the role of internal audit.

Forensic Advisory and Investigation Services

We provide both proactive and reactive fraud and accounting investigation services. Proactive services include Fraud Risk Management, Anti-Money Laundering and Market Abuse. Recent major engagements have included Fraud and Accounting Investigations, Intellectual Property Investigations, Asset Tracing and Recovery, Anti-Corruption Investigations, Financial Sanctions Advisory and Regulatory Investigations.


A dispute can arise out of many different circumstances and across all types of industries. Typically, we assist clients with the following services: Expert Witness, Expert Determination, International Arbitration, Intellectual Property Disputes and Matrimonial Disputes.

Business Intelligence Services

We offer a range of services which help clients to better understand and address the risks when considering a transaction or business relationship in a new or higher risk geographical market. Our services include Integrity Due Diligence, Country Risk Assessment, Corruption-related Integrity Due Diligence and Enhanced Due Diligence. We can also assist during situations of Commercial Dispute.

Deloitte Discovery

An entire commercial dispute, commercial investigation or multimillion pound litigation may rely on when a single piece of data was communicated, generated, altered or deleted, by and to whom, and under what circumstances. The Deloitte Discovery team is a global network of over 200 specialists assisting clients in addressing the technological challenges of today’s complex investigation and litigation environments.

Regional and International Services

In addition to providing the above services in London, we also provide Forensic and Disputes services regionally across the UK, in the Channel Islands and in Switzerland.

Useful links

  • Meet the team
  • Research & publications
  • In the press
  • Careers


  • Deloitte ranked #1 by Kennedy in global forensics and dispute advisory services
  • Deloitte appoints new Head of Disputes and International Arbitration

Key contact

  • Mark Tantam
    Head of Deloitte Forensic
    +44 (0)20 7936 3000

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