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What does digital modelling allow?

3D modelling allows for the generation of a faithful, millimetre-scale digital copy of a crime scene or accident scene, and the objects associated with it, thereby facilitating the analysis and preservation of evidence.

The combined use of laser scanning, infrared scanning and photogrammetry techniques makes it possible to generate an interactive «digital twin». This three-dimensional model allows magistrates and investigators to virtually navigate crime scenes, take precise real-time measurements, and examine exhibits (weapons, clothing, etc.) without direct manipulation, preserving the integrity of the physical evidence.

This hybrid approach ensures robust results, where the precision of mathematical calculation supports the clarity of visual demonstration: The laser data certifies measurements and calculations with absolute accuracy, whereas the virtual tour Makes the report understandable and accessible to all parties.

Beyond the digital capture of the existing, these tools also allow the Reconstruction of deleted or altered scenes Relying on fragmented data (photos and measurements from initial findings...), our experts can virtually reconstruct the prior state of a crime scene, thus offering magistrates and investigators a robust and retrospectively usable basis for forensic analysis.

By transforming raw data into a usable spatial environment, these technologies, implemented by BIOLEX experts, offer a rigorous investigation method that enhances understanding and the evidential weight of expert findings.

Methodology and contribution to investigations

Crime scene or accident scene digitisation

To fix and document the current state in order to avoid any loss of crucial information

Integration of expert knowledge

Integrate the results of related expert analyses (accidentology, ballistics, etc.) into 3D digitisation.

3D modelling of seals

To examine objects related to a crime scene (clothing, weapons, etc.) and put expert findings (bloodstain pattern analysis, DNA, etc.) into perspective in a 3D environment.

Virtual synthesis tour

Evaluate and present investigative hypotheses and expert findings in a 360° photographic environment

Technical support

Understanding expert conclusions through immersive 3-D environments

Missions and results

  • Projection onto crime scenes or accident sites
  • 3D modeling using laser scanners and NIR scanners
  • Integration of results from related expert assessments (accidentology, ballistics...)
  • Provision of virtual tours (crime scene, seals, etc.)
  • Expert testimony at trial

BIOLEX forensic laboratory

When requesting expertise from Laboratoire BIOLEX, the justice system ensures the collaboration of a partner recognised for:

Its specialised expertise

Over 15 years of experience
in BPA and forensic science

its state-of-the-art equipment

State-of-the-art crime scene detection, 3D modelling, and virtualisation materials and software

its validated methods

Analyses carried out in accordance with current international protocols