汗潜指纹的变化规律及检验

The Variation and Examination of Sweat Latent Fingerprints

指纹是物证之首,但现场的指纹多是条件较差的模糊指纹,其中一种模糊指纹是多汗液形成的,这类指纹往往受承痕客体的润湿度,手的压力以及汗液多少的影响。研究的意义在于甄别案犯指纹,并为正确分析和鉴定指纹提供了有力的依据。

Fingerprints have become the very basis of evidence,but most of the fingerprints found in crime scene are blurry ones.One kind of the blurry fingerprints is formed in much sweat in the ridges that can be changed by the wetting of the objects＇ surface,the pressure and the amount of sweat of hands.Studying on blurry fingerprint can serve to provide accurate identification of criminals.