随着科学技术的飞速发展,犯罪分子的作案手段日趋智能化、现代化,反侦查的形式愈来愈多,犯罪现场遗留的手印、足迹、工具痕迹等明显的痕迹物证越来越少。本文就陇南公安机关在办案实践中,微量物证的发现、提取和包装等方面存在着的问题及其解决,阐述了在刑事侦查中,侦查人员必须正确认识微量物证的形成规律,并掌握微量物证发现、提取和包装的正确方法。 With the rapid development of science and technology, criminals have become increasingly intelligent in modus operandi. There are more and more forms of modernization and anti-investigation. There are fewer and fewer evidences of traces such as handprints, footprints and tools left behind at crime scenes. In this paper, Longnan public security organs in the handling of cases, the discovery of trace evidence, extraction and packaging problems and their solutions, elaborated in the criminal investigation, investigators must correctly understand the formation of trace evidence, and grasp the trace evidence The right way to find, extract and package.