犯罪现场勘验中微量物证发现和提取.doc

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四川警察学院
政法干警招录培养体制改革试点班
毕业论文
犯罪现场勘验中微量物证的发现和提取
2012年 5 月 1 日
摘要
近年来，带有智能型犯罪的刑事案件明显增多，犯罪现场没有提取到有价值的指 纹、足迹等痕迹物证时，使得微量物证的提取对案件侦破的作用愈来愈大，现场勘查工 作应加强微量物证意识。鉴于此，本文系统的阐述了刑事案件中微量物证的对微量物证 的定义，存在的理论依据和特点如体积小、质量轻、不易察觉、易污染，分布复杂等； 并对微量物证存在与分布的重点部位、不同案件中勘查的重点场所，以及微量物证发现 的常用方法进行介绍；并介绍微量物证的提取、包装原则，提取和包装方法，以及重点 介绍对爆炸残留物、射击残留物、微量法医物证、纤维、油漆、塑料、橡胶、油斑、玻 璃、金属、纸张和粘合剂等常见微量物证的提取、保存和注意事项。为在现场勘验中发 现和提前更多、更有价值的微量物证。
关键词：微量物证犯罪现场勘查重点部位 发现 提取
Crime scene investigation evidence in detection and
extraction
Abstract : In rece nt years, with the in tellige nt type of crim inal cases in creased significantly, the scene of a crime not to extract valuable fingerprints, footprints of trace evide nee, the trace material evide nee extracti on on case detecti on effect is bigger and bigger, the scene surveying work should strengthen the evidence consciousness. In view of this, this paper describes the system of micro-material evide nce in crim inal cases to the trace evide nce of the definition, the theoretical basis for the existence and characteristics such as small volume, light weight, is not easy to detect, easy pollution, complex distribution 。 and the trace evidence of existence and distribution of the key parts in different cases, exploration of key sites, as well as trace evide nce found in the com mon ly used methods are in troduced。 and the in troduct ion of trace material evide nce extracti on, packag ing prin ciple, extract ion and pack ing method, and in troduces the explosive residue, gun shot residue, trace foren sic evide nce, fiber, paint, plastic, rubber, glass, metal, paper, oil sta in and adhesives and other com mon trace material evide nce extracti on, preservatio n and matters n eedi ng atte nti on. As in reconn aissa nce found in adva nce, and more valuable trace evide nce
Keywords：Trace evide nceCrime sce ne inv estigati on Key parts
DiscoveryExtractio n
目录
引言 (6)
1、 对微量物证的认识 (6)
、微量物证的