burnt out car

iStock

Forensics: Bringing Burnt Bones Back to Life Using 3D Technology

Forensic scientists have discovered a new way of presenting fragile evidence, by reconstructing a 'jigsaw' of human bone fragments using 3D printing

Written byUniversity of Portsmouth
| 2 min read
Register for free to listen to this article
Listen with Speechify
0:00
2:00

Forensic scientists at the University of Portsmouth have discovered a new way of presenting fragile evidence, by reconstructing a 'jigsaw' of human bone fragments using 3D printing.

In the first known study of its kind, researchers took fragmented burnt human bones and tested the ability to make 3D models suitable to be shown to a jury in court.

Lab manager academy logo

Get training in Biosafety and Biosecurity and earn CEUs.

One of over 25 IACET-accredited courses in the Academy.

Certification logo

Biosafety and Biosecurity course

Forensic investigation of crime scenes and other incidents requires the analysis of many different items as evidence, including human remains, some of which may be damaged or fragmented. To determine whether these pieces of evidence were originally one whole, they have to undergo a process called 'physical fit analysis.'

"A positive physical fit indicates that two or more fragments having originated from the same object," says one of the scientists involved in the research, Dr. Katherine Brown, senior lecturer, Institute of Criminal Justice Studies, University of Portsmouth. "Confirming physical fit at a crime scene is essential to draw links between locations, place suspects at the scene, and allow for object reconstruction."

However, physical fit analysis relies on the manual handling and then placing back together of the human remains and is often challenging to conduct with bone fragments particularly when fragile, sharp, or embedded in other materials.


Related Webinar: Beyond CSI: Tools for Forensics & Toxicology


"We wanted to find a way to circumvent the need to manually handle the delicate bones, so we looked to 3D technology," Brown says. "Whilst the use of 3D technology has become increasingly widespread within the field of forensics to our knowledge, this approach has not yet been applied explicitly to physical fit analysis."

The scientists compared two different 3D imaging techniques, micro computed tomography and structured light scanning. By generating virtual 3D models and prints of burned human bone fragments, they tested the suitability of these imaging techniques and subsequent 3D printing for physical fit analysis. The researchers ultimately found that 3D imaging and printing allowed for effective physical fit analysis without excessively handling the original fragments.

Interested in chemistry and materials science?

Subscribe to our free Chemistry & Materials Science Newsletter.

Is the form not loading? If you use an ad blocker or browser privacy features, try turning them off and refresh the page.

Limiting the handling of fragile forensic evidence minimizes damage and contamination. Additionally, the use of 3D prints opens up the possibility for physical fit demonstration, and the opportunity for a jury to explore the evidence replicas. Interaction with 3D virtual models and animations also provides 360 degree visualization in an engaging, understandable, and potentially impactful way, improving a jury's understanding.

"The application of 3D imaging and printing for physical fit analysis has many advantages compared with traditional methods," Brown says. "Overall, the techniques demonstrated by the study add value in forensic investigation and evidence presentation within the courtroom."

Loading Next Article...
Loading Next Article...

CURRENT ISSUE - April 2025

Sustainable Laboratory Practices

Certifications and strategies for going green

Lab Manager April 2025 Cover Image