随着社会经济发展、科学技术手段的发达,越来越多的刑事案件加入对混合物物证中DNA检验定检的使用。医务人员通过受害人身上可以混合物物证的提取,通过专业的技术手段进行深入,主要通过生物检材的提取、检验和分析三和步骤,取得物证的DNA分型,并最终确定犯罪嫌疑人。本文选取近年来发生的强奸案件,分别介绍生物物证DNA检验鉴定的案件中发挥的作用,和混合生物物证检材的处理以及应用过程中的相关注意事项,细述混合生物物证DNA检验鉴定在案件中的使用及最终结果,从技术的角度阐述其在此类案件中的重要性。 With the socio-economic development and the development of scientific and technological means, more and more criminal cases have been added to the use of DNA testing in mixture evidence. Through the extraction of the mixed evidence of the victims, the medical staff can deepen their expertise through professional technical means, and obtain the DNA classification of the physical evidence through the extraction, testing and analysis of the biological samples, and finally determine the suspects. This article selects rape cases occurred in recent years to introduce the role of biological evidence DNA testing and identification of cases, and mixed biological evidence processing and application of the relevant notes, detailed hybrid DNA evidence identification in the case In the use of the final results, from a technical point of view of its importance in such cases.