[Forensic Analysis of 20 Dead Cases Related to Heroin Abuse]

To perform retrospective analysis on 20 dead cases related to heroin abuse, and to provide references for the forensic assessment of correlative cases.Among 20 dead cases related to heroin abuse, general situation, using method of drug, cause of death and result of forensic examination were analyzed by statistical analysis for summarizing the cause of death and pathologic changes.The dead were mostly young adults, with more male than female. The results of histopathological examinations showed non-specific pathological changes. There were four leading causes of death, including acute poisoning of heroin abuse or leakage （13 cases, 65%）, concurrent diseases caused by heroin abuse （3 cases, 15%）, inspiratory asphyxia caused by taking heroin （2 cases, 10%）, and heroin withdrawal syndrome （2 cases, 10%）.The forensic identification on dead related to heroin abuse must base on the comprehensive autopsy, and combine with the qualitative and quantitative analysis of heroin and its metabolites in death and the case information, as well as the scene investigation.