Kapoor Neeti, Badiye Ashish
Department of Forensic Science, Govt. Institute of Forensic Science, Nagpur, Maharashtra, India.
J Forensic Leg Med. 2015 May;32:42-6. doi: 10.1016/j.jflm.2015.02.015. Epub 2015 Feb 26.
On crime scenes, whole set of the ten digit fingerprints are rarely found and usually chance prints in the form of single digit fingerprint are encountered. Determination of hand (Right or left) can be of vital importance to reduce the burden on the investigator and may thereby aid in fixation of absolute identity of the donor. In the present investigation, 500 randomly selected and bilateral rolled fingerprints of 250 healthy, consenting adult subjects of a central Indian (Marathi) population with whorl patterns were examined to determine the hand. It was found that by studying various parameters like; slope of apex ridges (towards right, left or absent), rotation of innermost ridges (either clockwise, anti-clockwise or absent), angle formed at both sides of core, position of the perpendicular bisector on the delta line (with respect to core), ridge tracing (outer, inner or meeting), higher ridge count, angle between deltas and core (at deltas), direction of the pattern (tilting/inclination) and distance between the deltas & the core; it is possible to successfully determine the hand of the print. Applying chi-square test, the results were found to be statistically significant at p < 0.01 levels.
在犯罪现场，很少能找到完整的十指指纹，通常遇到的是单指指纹形式的偶然指纹。确定手（右手或左手）对于减轻调查人员的负担至关重要，从而可能有助于确定捐赠者的绝对身份。在本研究中，对印度中部（马拉地族）250名有涡纹图案的健康、自愿的成年受试者的500份随机选取的双侧滚动指纹进行了检查以确定手别。研究发现，通过研究各种参数，如顶脊的倾斜方向（向右、向左或无倾斜）、最内侧脊的旋转方向（顺时针、逆时针或无旋转）、核心两侧形成的角度、垂直平分线在三角线（相对于核心）上的位置、纹线追踪（外侧、内侧或相交）、较高的纹线计数、三角与核心之间的角度（在三角处）、图案方向（倾斜/倾角）以及三角与核心之间的距离；可以成功确定指纹的手别。应用卡方检验，结果在p < 0.01水平上具有统计学意义。
