摘要
本文旨在探索人类十指指纹纹型手性对称的规律,为现场指印的分析提供依据,同时也可为指纹遗传的研究提供基础的统计数据。本文收集整理了500名男性十指指纹卡,按照六步分类法将指纹纹型分为十种类型,统计分析左右手同名手指上纹型对称的概率,并利用SPSS软件对纹型出现数与对称数进行相关性分析。结果表明,各纹型在十指指纹上的对称率均较高,其中弓形纹在拇指中更易对称,箕形纹和斗形纹则在小指中更易对称。此外通过相关性分析可得:食指、小指和中指的相关性最强,环指的相关性相对较弱,但就系数而言仍然较高。左右手同名手指的纹型对称性良好,归纳总结出的指纹对称性规律体系可以为实际公安工作提供参考。
Fingerprint,among the so-called "king of evidence",always plays its crucial role in solving relevant cases.Therefore,fingerprint patterns are paid of incessant attentions from dactylgraphers.Here,the regularity of chiral symmetry of human ten-digit fingerprints was to explore with purpose to provide more reference information for fingerprint analysis and supply basic statistical data for investigation of fingerprint heredity.With collection of the fingerprint cards of 500 males’ all ten fingers,5000 fingerprints were consequently divided into 10 types of patterns according to six-step taxonomy.The symmetry of each fingerprint pattern was recorded about the name-same fingers from every ten-digit fingerprint card,together with the counts taken of the symmetrical samples,the isoform asymmetric ones and those simultaneously appearing on the name-same fingers of each pattern.SPSS software was chosen to analyze the correlation between pattern occurrence and the number of those showing symmetry.All the patterns were shown of higher symmetry rate with the ten-digit fingerprints,having particularly the arch pattern indicated of proneness to symmetry with thumb while the loop and/or whorl patterns more symmetrical with the little finger.Correlation analysis showed that the strongest correlativity linked to the index,little and/or middle finger while a relatively weak correlativity to the ring finger that was still demonstrated of high in terms of coefficient.In conclusion,good fingerprint-pattern symmetry emerges with the name-same fingers of left and right hand.The regularity of fingerprint-pattern symmetry revealed here should be able to provide more information in the case of fingerprints difficult to identify.Additionally,the chiral symmetry of fingerprint pattern may have its value in genetics and racial ascendancy.
作者
张嘉宇
唐玮
姜雨彤
张丽梅
张忠良
孙灏琳
ZHANG Jiayu;TANG Wei;JIANG Yutong;ZHANG Limei;ZHANG Zhongliang;SUN Haolin(College of Forensic Sciences,Criminal Investigation Police University of China,Shenyang 110035,China;Criminal Police Brigade of Shenhe Sub-bureau of Shenyang Public Security Bureau,Shenyang 110801,China)
出处
《刑事技术》
2023年第1期10-15,共6页
Forensic Science and Technology
基金
公安部重点研究计划(2011ZDYJXJXY001)。
关键词
指纹
纹型
对称性
ngerprint
fingerprint pattern
symmetry
