Fahrni Stella, Delémont Olivier, Grabherr Silke
School of Criminal Justice, University of Lausanne, 1015, Lausanne-Dorigny, Switzerland.
University Centre for Legal Medicine Lausanne-Geneva, Chemin de la Vulliette 4, 1000 Lausanne 25, Switzerland.
Forensic Sci Int Synerg. 2024 Apr 23;8:100469. doi: 10.1016/j.fsisyn.2024.100469. eCollection 2024.
Practice at our Center shows that approach using 3D surface imaging for morphometric comparison of patterned injuries does not always lead to accurate conclusions. We decided to evaluate whether a selection protocol focused on analysis phase could enable us to form an early assessment of the outcome of a comparison process, and then to select lesions likely to lead to a probative conclusion. 23 blunt objects were used to create 65 patterned injuries on an experimental model simulating human skin. A blinded analysis and a comparison were conducted on photographs and 3D models of the lesions. Statement of analysis phase was consistent with comparison results in most cases, enabling correct identification of the responsible object or at least keeping it as possibly responsible among 2 to 3 objects. Our protocol has been demonstrated to improve ability to exploit patterned injuries from surface imaging, despite certain limiting factors.
我们中心的实践表明，使用3D表面成像对有图案损伤进行形态计量比较的方法并不总是能得出准确的结论。我们决定评估一种侧重于分析阶段的选择方案是否能使我们对比较过程的结果形成早期评估，进而选择可能得出有证明力结论的损伤。我们使用23个钝器在模拟人体皮肤的实验模型上制造了65处有图案损伤。对损伤的照片和3D模型进行了盲法分析和比较。在大多数情况下，分析阶段的结果与比较结果一致，能够正确识别责任物体，或者至少将其保留在2至3个可能负有责任的物体之中。尽管存在某些限制因素，但我们的方案已被证明能提高利用表面成像分析有图案损伤的能力。
