Department of Forensic Science, Government Institute of Forensic Science, Nagpur, India.
Shri Vaishnav Institute of Forensic Science, Shri Vaishnav Vidyapeeth Vishwavidyalaya, Indore, India.
Med Sci Law. 2020 Jul;60(3):182-187. doi: 10.1177/0025802420910303. Epub 2020 Mar 24.
In fingerprint analysis, the determination of hand (right or left) is one of the keys to resolving questions regarding the identity of the donor of the print. It is rare to encounter a complete set of 10-digit fingerprints from the scene of a crime. Although vital and imperative, except for a few studies on whorl patterns, the use of single-digit prints and patterns to ascertain the hand of the donor is scarcely reported in the literature. This research describes a novel approach whereby an analysis of twinned loops was carried out to identify the various parameters that may be helpful in ascertaining the hand of the donor. Bilateral rolled fingerprints from 180 healthy consenting adults belonging to a heterogeneous population of central India were collected. Out of the total of 1800 prints taken, 100 twinned loops (50 on the right hand and 50 on the left hand) were analysed. The following six parameters were considered: the slope of the flow of the apex ridges, the distance between the left delta and the ascending core, the distance between the right delta and the ascending core, mid-core position, the position of the loop and ridge tracing. On applying the chi-square test, the results were found to be statistically significant. Therefore, these parameters were found suitable for the determination of the hand from a single twinned-loop print.
在指纹分析中，确定手（右手或左手）是解决指纹供体身份问题的关键之一。在犯罪现场很少能遇到完整的 10 个指纹。尽管除了涡纹模式的少数研究外，使用单个指纹和模式来确定供体的手在文献中几乎没有报道，但本文描述了一种新方法，通过对双箕斗纹进行分析，确定了可能有助于确定供体手的各种参数。本研究收集了来自印度中部一个异质人群的 180 名健康同意成年人的双侧滚动指纹。在总共采集的 1800 个指纹中，分析了 100 个双箕斗纹（右手 50 个，左手 50 个）。考虑了以下六个参数：顶点嵴流的斜率、左手三角和上升核心之间的距离、右手三角和上升核心之间的距离、中核位置、环和脊迹的位置。应用卡方检验后，结果具有统计学意义。因此，这些参数适合从单个双箕斗纹中确定手的位置。
