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Forensic: investigation and irregularities, witness reports

Fraud and corruption pose a growing challenge worldwide.

The commercial landscape is changing fast. An ever more regulated environment means organisations must adopt stringent governance and compliance processes. As business has become global, there is a need to deal with multi-jurisdictional investigations, litigation, and dispute resolution, address the threat of cyber-attacks and at the same time protect the organisation’s value. The sheer volume of data and information generated by modern, digital businesses poses the challenge of quickly identifying the key facts in the context of reputation and regulatory enforcement issues.

Grant Thornton's Forensic team is specialised in investigating and validating criminal and irregular actions in the corporate world, preparing expert financial reports and subsequently validating their position as independent experts (legal proceedings or disputes, damages and losses) and designing and setting up crime prevention models in legal entities.


Fernando Lacasa

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Partner Director

Fernando Beltrán

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Our team consists of a multidisciplinary group of professionals that have gained extensive experience in undertaking economic/financial investigations, as well as calculating damages and losses as experts in their field.

 Our solutions

Investigating fraud and irregularities and validating actions
We have proven professional experience in performing numerous investigations into financial fraud and irregularities, contributing to negotiated resolutions to conflicts in various cases, while in others presenting objective and rigorous expert reports to the competent courts.

If you have any questions or would like to find out more about the investigating fraud and irregularities and validating actions service, contact Alfonso Bravo.

Expert witness reports in economic-financial issues
We can prepare clear and technically sound expert witness reports in order to:

  • Explain the logic behind certain complex financial-economic matters.
  • Quantify and evidence the amount requested for damages as part of a claim.
  • Present in court or arbitration proceedings complex financial-economic matters in a clear and compelling manner.
  • Identify key financial-economic and accounting issues in any dispute, analyse the documentation supplied by the parties within the framework of a dispute, and prepare internal reports for the negotiation stage prior to legal proceedings.
  • Prepare economic studies designed to quantify the socio-economic contribution of companies and public institutions to the economy and society, or to quantify the economic impact of a company or sector as a result of regulatory changes.

If you have any questions or would like to find out more about the expert witness reports in economic-financial issues service, contact Juan Francisco Nasser.

Corporate crime prevention
We can design Crime Prevention Models regarding criminal responsibilities of corporations, verifying implementation based on the Model requirements, and helping a company's governance bodies in their decision making processes. We also advise companies on how to manage internal investigations which may arise as part of the crime detection procedures implemented in your organisation.

We review and assess specific anti-bribery and anti-corruption compliance programmes relating to foreign regulations, such as FCPA, UK Bribery Act, etc., which aim to prevent corruption, bribery and the committing of crimes in general.

In certain corporate transactions or hiring processes, or when there are certain suspicions, organisations need to understand the links that specific individuals or companies have with third parties and whether these individuals or companies are involved in news stories, legal proceedings or events that could create reputational risk. We prepare reports that analyse reputations and links and which can help organisations in these matters.

If you have any questions or would like to find out more about the corporate crime prevention service, contact Fernando Lacasa.

Digital evidence & e-discovery
We have the experience and technology to tackle projects that may require carrying out forensic procedures to collect digital evidence as well as its analysis. The chain of custody is guaranteed at any time so that the evidence collected can be used in court or arbitration proceedings. We therefore have a team of engineers that are trained, knowledgeable and experienced in the different fields of information technology.

We help organisations and/or law firms to access specific digital information from anywhere around the world. Today, numerous civil cases involve some type of electronic discovery (e-discovery) to ascertain the truth in legal proceedings. In many cases, electronic detection and making this process available to the parties involved can reduce the time and costs associated with having to travel to another place and remain there while this information is analysed. Information may come from various sources such as emails, computers, smart phones, PDAs or any other type of electronic device.

If you have any questions or would like to find out more about the digital evidence & e-discovery service, contact Cristina Muñoz-Aycuens.

Cyber security: response to IT security breaches
We help companies understand their level of exposure in terms of cyber security by analysing breaches which have resulted in damages (i.e. phishing) and which require an investigation or forensic analysis to identify who caused it, to restore the damage caused and to prevent future breaches which may endanger the company's operations.

We are very experienced in presenting and ratifying expert witness reports in court in this field.

If you have any questions or would like to find out more about the cyber security service, contact Cristina Muñoz-Aycuens.

Advisory services in money laundering prevention and detection
Our team has extensive experience delivering advisory services for money laundering prevention and detection purposes, as well as preparing independent expert witness reports for highly-reputed companies. We also provide due diligence execution services based on the prevailing legislation.

If you have any questions or would like to find out more about the advisory services in money laundering prevention and detection, contact


Talk to us

If you have any questions or would like to find out more about this service, contact Fernando Lacasa or Ramón Galcerán.