随着我国经济的日益发展，出现的道路交通事故日益增多，特别是肇事汽车在撞人（死、伤）后逃逸的案件时有发生。从可疑的肇事汽车上提取到的法医物证检材常是微量及被污染的、条件不佳的血迹或人体组织碎块。这些检材的阳性检出起到认证肇事汽车的重要作用。现把我们对此类物 With the continuous development of economy in our country, there have been more and more road traffic accidents, especially cases of vehicles that have escaped after they hit people (dead or wounded). Forensic evidence samples taken from suspect car accidents are often trace and contaminated, poorly conditioned blood or human tissue debris. The positive detection of these samples played an important role in the certification of the vehicle. Now we are such things