Expert Witness Services

A controlled procedure that verifies the integrity and proper handling of evidence, from the moment it is located until it is assessed by the expert, thereby preventing alteration, substitution, contamination or destruction.

The chain of custody must ensure that the evidence presented to the court is the same as that collected at the scene.

The chain of custody involves: proper extraction of the evidence, preservation, individualization, appropriate transport and controlled handover.

Application of specialized scientific and analytical techniques to technological infrastructure to identify, preserve, analyze and present data that are valid in legal proceedings.

Applying these techniques requires specialization and advanced knowledge of computing and systems in order to detect what has happened on any electronic device, and ranges from knowledge of software to that of hardware, networks, security, hacking, cracking, information recovery…

Forensic analysis of computer systems makes it possible to reconstruct the computer object, examine residual data, authenticate data and explain the characteristics and techniques of use applied to the data and computer assets, detecting traces of cyberattacks, information theft, conversations or traces of emails, chats…

Application of scientific and analytical techniques to mobile devices such as mobile phones or smartphones. The personal and continuous use of mobile devices makes them common tools in any crime and a basic piece of evidence from the expert’s point of view.

Call history, text messages, emails, digital photographs, videos, calendar entries, passwords or even personal location over time are just some examples of what a computer forensics expert examines.

Computer fraud is inducing another person to do or refrain from doing something, so that the criminal obtains an improper benefit. Some forms of computer fraud:

• Illegally altering data input. This requires the criminal to have a high level of skill and is therefore common among employees of a company who know its information networks well and can access them to alter data, such as generating false information that benefits them, creating unauthorized instructions and processes, or damaging the systems.
• Altering, destroying, suppressing or stealing data, an event that can be difficult to detect.
• Altering or deleting files.
• Altering or misusing systems or software, altering or rewriting code for fraudulent purposes. These events require a high level of knowledge.

Other forms of computer fraud include using computer systems to rob banks, carry out extortion or steal classified information.

Unauthorized access to an email account or to computer systems, breaching the security of data or programs. The intrusion may be carried out in order to damage, deteriorate, alter or make inaccessible another person’s data or computer programs, or in order to discover and reveal secrets.

Impersonating another person in order to commit criminal acts or to harm third parties through defamation or insults. This type of crime is very common on social networks, where creating fake profiles to misappropriate personal data, as well as insults and defamation, are commonplace.

Uncontrolled release of information to unauthorized persons, whether intentional or not. In this way, confidential personal, legal or business information ends up in the hands of a third party.

Recovery of data and copying it to another device in cases of operating system failures, disk failures or deletion of the data —intentional or not—.

Through various mechanisms we can detect the IP address, the number that identifies a computer’s interface within the Internet network. IP address tracing is commonly used to detect scammers, criminals, hackers or simply to see who is behind threats or extortion.

By tracing the IP address, those responsible for emails or threats sent through computer systems are identified. Anonymous authors are generally linked to criminal matters, threats or child pornography, but they can also be carriers of viruses that damage an entire corporate structure.

Cyberbullying: harassment or bullying at school carried out through computer systems (mobile or desktop devices with Internet access). The speed at which it spreads and the staggering number of people who can access the abuse make it a despicable act. In most cases minors are both the perpetrators and the targets of this abuse.

Grooming: a set of deliberate actions by adults to cause emotional harm to children and thereby gain their trust, the ultimate aim being sexual abuse. Through deceit of various kinds they gain the children’s trust and later blackmail them to obtain sexual favors.