暴雨后疑难检材DNA检验方法探讨

Discussion on DNA Test Method for Difficult Samples after Heavy Rain

侦查机关根据实际案情和现场分析,详细了解检材受影响的程度,分段擦拭命案中疑难检材重要部位,选择最佳提取、纯化及扩增策略,结合多张基因图谱,最终取得完整有效基因分型,“零口供”认定案件犯罪嫌疑人。

According to the actual cases and on-the-site analysis,the investigation agency should detailed understand the affected level of test materials,segment wipe the important parts of the difficult materials in the murder cases,and select the best strategy of extraction,purification and amplification,combined with multiple genetic maps,and finally obtain complete and effective genotyping,and identify the suspect with“zero confession”.