Warwick Manufacturing Group (WMG), University of Warwick, Coventry, UK.
Department of Anatomy, Masaryk University, Brno, Czech Republic.
J Forensic Sci. 2023 Jul;68(4):1178-1189. doi: 10.1111/1556-4029.15260. Epub 2023 Apr 27.
While fingerprints are a highly used means of identification, not every fingerprint left behind on a potential crime scene can be used for identification purposes. In some cases, the fingerprint may be smudged, partially preserved or overlapping with other prints hence distorting the ridge pattern and may therefore be not appropriate for identification. Further, fingermark residue yields a very low abundance of genetic material for DNA analysis. In such cases, the fingermark may be used to retrieve basic donor information such as sex. The focus of this paper was to assess the possibility of differentiating between the sexes of the donor of latent fingermarks. Analytical method was GC-MS analysis of the chemical compounds of latent fingermarks using 22 male and 22 female donors. Results showed 44 identified compounds. Two alcohols, octadecanol C and eicosanol C , were found to show a difference that was statistically significant between male and female donors. There is also some evidence for the possibility of distinguishing sex of the fingermark donor based on the distribution of branched chain fatty acids, as free compounds or esterified in wax esters.
虽然指纹是一种高度使用的身份识别手段，但并非在每个潜在犯罪现场留下的指纹都可用于识别目的。在某些情况下，指纹可能会被弄脏、部分保存或与其他指纹重叠，从而扭曲脊纹模式，因此不适合识别。此外，指纹残留物可用于 DNA 分析的遗传物质含量非常低。在这种情况下，指纹可用于检索基本的供体信息，例如性别。本文的重点是评估区分潜在指纹供体性别的可能性。分析方法是使用 22 名男性和 22 名女性供体对潜伏指纹的化学化合物进行 GC-MS 分析。结果显示有 44 种已识别的化合物。两种醇，十八烷醇 C 和二十烷醇 C ，在男性和女性供体之间存在统计学上显著差异。基于分支链脂肪酸的分布，作为游离化合物或酯化在蜡酯中，也有一些证据表明有可能根据指纹供体的性别来区分。
