在DNA分析技术应用于法医物证检验之前,法医物证技术只能对血液、精液、血斑、精斑、毛发、唾液斑等人体组织做有限的几种红细胞血型、酶型、血清蛋白型的检验,对血型不同的嫌疑人做出排除的结论,而血型相同时却达不到确认作案人的要求。1985年英国Leister大学遗传学部的Jeffreys首先将DNA分析技术应用于法医物证检验,为法医物证检验提供了新的检验方 Before the application of DNA analysis technology to forensic evidence testing, forensic evidence technology can only do limited tests of blood type, enzyme type and serum protein type on human tissues such as blood, semen, blood spot, semen, hair and saliva spots , The suspects of different blood groups to make the conclusion of the exclusion, but the same blood type but can not meet the requirements of identifying perpetrators. Jeffreys, Department of Genetics, Leister University, UK, first applied the DNA analysis technology to forensic evidence test in 1985, which provided a new test for forensic evidence testing