浅谈“502”熏显汗潜微弱手印紫外拍摄法  

A Brief Talk on Ultraviolet Photography for Superglue Fuming Latent Feeble Fingerprints

作　　者：杨海东[1] 

机构地区：[1]广西北海市公安局海城分局刑事科学技术室,广西北海536000

出　　处：《广西警官高等专科学校学报》2012年第6期32-33,共2页Journal of Guangxi Police College

摘　　要：汗潜微弱手印因其纹线白色聚合物微少、漫反射光线也很少,用普通方法拍摄效果不佳。在实践中,采用"502"胶熏显出来的汗潜微弱手印,通过紫外观察照相系统的短波紫外光激发,其纹线可见度显著增强。利用紫外观察照相系统即时配光显现,使用数码相机拍摄"502"熏显汗潜微弱手印,能够增强反差、消除背景图案干扰,效果良好。A general approach is used to film the latent fingerprints,which turns out to be ineffective due to the small number of white fingerprint polymers and diffused lights.Superglue fuming is used to develop latent feeble fingerprints.Stimulated by short wave UV-light fromultraviolet observation-based photographic system,the visibility of the fingerprints is significantly enhanced.Superglue fuming latent feeble fingerprints is filmed with digital camera,enhancing the contrast,eliminating the disturbance by the textured backgrounds and achieving sound effects.

关 键 词：紫外观察照相系统 “502”熏显 微弱手印 

分 类 号：D918.91[政治法律—法学]