随着科学技术的发展，犯罪分子的作案手段也日趋智能化、科技化。犯罪分子作案后为了逃脱罪责，采取各种手段破坏现场痕迹，使传统的手印、足迹、工具痕迹等明显的痕迹物证越来越少。而现场微量物证的发现、采取和检验在侦破案件中的作用就越来越明显。 微量物证是指罪犯在实施 With the development of science and technology, criminals have become increasingly intelligent and scientifically criminalized. In order to escape the guilt of criminals after committing the crime, criminals have taken various measures to destroy the on-site marks and made less and less visible evidence of traces of traditional handprints, footprints and tools. The discovery of spot evidence of evidence, the detection and testing in the detection of the case’s role is more and more obvious. Trace evidence refers to the criminals in the implementation