Virtual Reconstruction as Scientific Evidence in Criminal Proceedings

Background: Recent technological advances, such as 3D laser scanning, digital photogrammetry and virtual autopsy, have significantly reshaped the acquisition and interpretation of scientific evidence in criminal proceedings. These tools enable highly detailed visualizations that can enhance factual understanding while also introducing potential cognitive biases for judges. This study aims to assess the legal, epistemological and forensic implications of 3D virtual reconstruction as evidence, examining its admissibility, scientific robustness, and associated risks within contemporary criminal trials. Methods: An interdisciplinary methodology was applied, integrating criminal procedural law, forensic medicine, digital forensics and legal epistemology. The study includes doctrinal analysis, a review of the literature from the last decade, Italian and comparative case law, and evaluation of European forensic guidelines (particularly ENFSI). Direct observation of laboratory practices and technical assessment of reconstruction tools were conducted to evaluate scientific validity, repeatability, traceability and transparency. Results: The findings reveal that 3D reconstruction provides high metric accuracy, durable digital preservation of the crime scene and improved communication of complex dynamics to the court. It allows experts to test alternative hypotheses, reducing ambiguity in technical explanations. Nevertheless, several critical issues emerged: the persuasive power of highly realistic imagery, dependence on non-transparent software processes, potential vulnerabilities in the chain of custody for digital data, and the absence of a unified Italian regulatory framework governing digital scientific evidence. Conclusions: 3D virtual reconstruction constitutes a powerful but epistemologically complex form of scientific evidence. Its probative value depends on transparent methodology, verifiability and strict compliance with adversarial safeguards. The study underscores the need for national technical standards, clear admissibility criteria and specialized training for legal professionals. A coherent regulatory framework is essential to ensure that digital technologies enhance, rather than distort, the pursuit of truth in criminal justice.