Reconstructing firearm incidents relies on rigorous wound analysis. A 3D forensic pipeline makes it possible to digitize the morphology of the damage, calculate trajectories, and test hypotheses. This workflow integrates scanning, modeling, and simulation to provide objective data to experts and courts, avoiding reliance solely on classic visual inspection.
From scanning to ballistic simulation: a technical workflow 🔬
The process begins with a structured light scanner or high-resolution photogrammetry to capture the affected area. Then, modeling software generates a clean mesh of the tissue and, if available, of the recovered projectile. The central phase employs ballistic simulation engines that calculate the entry angle, transferred energy, and bone fracture patterns. Finally, the result is overlaid with the patient's anatomy through spatial registration, allowing the shooting distance and shooter position to be validated with a bounded margin of error.
When the software thinks the body is a video game 🎮
The fun begins when the algorithm decides the clavicle is an elastic obstacle and the simulation fires a projectile that bounces like a rubber ball. After adjusting density and stiffness parameters, the expert discovers the error was in a forgotten checkbox. But beware: if the final report comes out with a 47-degree angle instead of 48, opposing counsel will use it to cast reasonable doubt. In the end, the 3D forensic pipeline not only analyzes wounds, it also generates procedural headaches.