犯罪现场勘查是具有很强专业性的侦查活动,是案件侦查的起点和关键,是案件能否顺利侦查和起诉的关键,是案件侦破过程中的前期指挥部。而勘查人员在案件现场提取的痕迹物证又是侦查破案的重要线索和证据,而证据则关系着办案的质量。因此,本文认为在研究新形势犯罪手段的基础下,树立“证据第一”的理念,有效地提高对现场勘查中提取的痕迹物证的应用值得我们探索。 Crime scene investigation is a highly professional investigation activity, which is the starting point and key of the case investigation. It is the key to whether the case can be successfully investigated and prosecuted, and is the pre-command headquarters in the case detection. The evidence taken by the investigators at the scene of the case is also an important clue and evidence for investigating the case and the evidence is related to the quality of handling the case. Therefore, this paper believes that based on the study of crime means in the new situation, we should establish the concept of “evidence first” and effectively improve the application of the trace evidences extracted from the scene investigation.