Crowther Matthew, Reidy Selina, Walker Jeremy, Islam Meez, Thompson Tim
School of Health and Life Sciences, Teesside University, Middlesbrough TS1 3BA, UK.
Forensic Podiatry Unit, Podiatry Services, Primary and Community Services, Sheffield Teaching Hospitals NHS FT, Jordanthorpe Health Centre, 1 Dyche Close, Sheffield S8 8DJ, UK.
Sci Justice. 2021 Jan;61(1):79-88. doi: 10.1016/j.scijus.2020.08.005. Epub 2020 Sep 9.
Foot impression evidence recovered from crime scenes can be available in the form of barefoot prints, sock-clad footprints, or as impressions within footwear. In some cases, suspects leave their footwear at the scene of the crime, and the insoles from the footwear can be important in linking a person to the footwear. The application of 3D data-collecting technology is becoming more and more popular within forensic science and has been used to recover footwear impression evidence. The present study is a feasibility study to discover if 3D data capturing devices can be applied to insoles; to capture the footprint impression for measurement using the Gunn method (a method used in forensic podiatry casework). Three different methods of data capture were conducted; Adobe Photoshop, MeshLab, and calipers used directly on the insole. Paired t-tests and Intraclass Correlation Coefficient (ICC) were conducted for all three data capture methods. Seven measurements used in this study were significantly different across all three methods. ICC scores were moderate to excellent for the Photoshop method, poor to good for the 3D method, and moderate to excellent for the Direct method.
从犯罪现场提取的足部痕迹证据可以是赤脚脚印、穿着袜子的脚印，或者是鞋内的印记。在某些情况下，嫌疑人会将鞋子留在犯罪现场，而鞋内底对于将人与鞋子联系起来可能很重要。三维数据采集技术在法医学中的应用越来越普遍，已被用于提取鞋印证据。本研究是一项可行性研究，旨在探究三维数据采集设备能否应用于鞋内底；使用冈恩方法（法医足病学案件工作中使用的一种方法）采集足迹印记进行测量。进行了三种不同的数据采集方法；直接在鞋内底上使用Adobe Photoshop、MeshLab和卡尺。对所有三种数据采集方法进行了配对t检验和组内相关系数（ICC）分析。本研究中使用的七项测量在所有三种方法之间均存在显著差异。Photoshop方法的ICC分数为中等至优秀，三维方法为差至良好，直接方法为中等至优秀。
