脱落细胞DNA检测在肇事车辆认定中应用一例

The DNA Detection Technology of Epithelial Cells Used in Traffic Accident Cases Identification

微量生物检材是目前检案中经常遇到的疑难生物物证,也是目前法医遗传领域的研究热点和难点之一。在交通事故中,此类微量生物检材由于体积小、微量、不易被识别等特点,往往被当事人忽略。本案例通过事故现场提取的微量检材的脱落细胞DNA检测,成功获得STR分型图谱,从而确定了肇事车辆,并还原了交通事故案件真相。

Nowadays to examine biological trace samples is not only one of the most complicated problems in the forensic cases, but also one of research hotspots and difficulties in forensic genetics currently. Due to its characteristics, such as small size, trace and difficulty of identifying, it is often overlooked by person handling the traffic accident case. In combination with the related case, we analyzed and studied how to identify the vehicle and recreate the truth of the case by examination of the STR typing of biological trace sample left at accident scene. And in this case, epithelial cell samples were examined by the DNA detection technology.