简易抽真空502胶手印显现装置的设计和应用  

Design and Application of a Simple Vacuum Pumping Device Using Superglue for Fingerprint Development

作　　者：孙凯[1,2] 曲富平 SUN Kai;QU Fuping(Forensic Science Department of Zhejiang Police College,Hangzhou 310053,China;People s Public Security University of China,Beijing 100038,China;Binhai Branch of Weifang Public Security Bureau,Weifang 261108,China)

机构地区：[1]浙江警察学院刑事科学技术系,浙江杭州310053 [2]中国人民公安大学研究生院,北京100038 [3]潍坊市公安局滨海经济开发区分局,山东潍坊261108

出　　处：《中国人民公安大学学报（自然科学版）》2020年第2期5-9,共5页Journal of People’s Public Security University of China(Science and Technology)

基　　金：浙江警察学院校级项目(2018ZXY020)。

摘　　要：目的利用抽真空容器,设计一种简易便携的502胶显现装置,用于低压状态下快速显现汗潜手印。方法使用该装置显现硬塑料片、黑色塑料袋以及皮革表面的新鲜汗潜手印,观察不同显现时间下的显现效果,并与滤纸贴附法以及502胶显现柜显现两种方式进行比较。结果该装置能够在较短时间内显现出新鲜汗潜手印,且纹线清晰,比较滤纸贴附法以及显现柜显现的方法得到的纹线更加均匀。结论简易抽真空502胶手印显现装置可用于多种非渗透客体表面的汗潜手印显现,具有便携、成本低、效率高以及显现均匀不过度的优势,可在现场中使用。Objective:A simple and portable device using superglue for the development of fingerprint is designed by using a vacuum vessel,which can quickly develop latent sweat fingerprints under low air pressure.Method:The device is used to develop latent sweat fingerprint on the surface of hard plastic sheet,black plastic bag and leather.The effect of the device for fingerprint development is observed under different developing time,and is compared with the effect of superglue filter paper sticking method and effect of superglue fuming cabinet.Results:The device can develop latent fingerprints in a short time,which can visualize the friction ridge clearly.Compared with the methods of filter paper sticking and superglue fuming cabinet,this device can develop fingerprints more evenly.Conclusion:The simple vacuum pumping device using superglue for fingerprint development can be used for the development of latent sweat fingerprints on the surfaces of various non permeable objects.It has the advantages of portability,low cost and high efficiency,which can develop latent fingerprints evenly.This simple device can be used in the crime scene investigation.

关 键 词：手印显现 502胶 真空502胶显现 

分 类 号：D918.91[政治法律—法学]