Department of Forensic Medicine, Soochow University, Suzhou 215000, Jiangsu Province, China.
Zhongshan Public Security Bureau, Zhongshan 510080, Guangdong Province, China.
Fa Yi Xue Za Zhi. 2021 Jun;37(3):332-337. doi: 10.12116/j.issn.1004-5619.2021.410201.
Objective To test the feasibility and accuracy of with sarcosaprophagous insects postmortem interval （PMI） estimation with sarcosaprophagous insects and provide references for estimation practice. Methods Eleven cases confirmed by the detection results, with complete entomological evidence were selected. The insect species, estimation results and true results involved in the cases were statistically analyzed and compared. Results Thirteen species of insects were found at the criminal scene, including （Fabricius）, （Macquart）, （Aubertin）, （Meigen）, Stein, （Fallén）, Sarcophagid （species were not identified）, （Loew）, （Linnaeus）, （Paykull）, （Linnaeus）, （De Geer） and （Fabricius）. The PMI of all eleven cases was within the range of estimated PMI. The estimated results of 72.73% cases were on the same day of the true results. Conclusion Sarcosaprophagous insects can estimate the PMI simply and conveniently. In cases where the PMI is within the time range of one generation of flies or beetles, the estimation results are relatively accurate. However, the estimation is less accurate when the PMI is beyond the time range.
目的 探讨利用腐肉食性昆虫推断死后间隔时间（PMI）的可行性和准确性，为推断实践提供参考。方法 选取 11 例经检测结果证实、具有完整昆虫学证据的案例，对案例中涉及的昆虫种类、推断结果与真实结果进行统计分析和比较。结果 在犯罪现场共发现 13 种昆虫，包括（Fabricius）、（Macquart）、（Aubertin）、（Meigen）、Stein、（Fallén）、腐肉食性（种未鉴定）、（Loew）、（Linnaeus）、（Paykull）、（Linnaeus）、（De Geer）和（Fabricius）。11 例的 PMI 均在推断 PMI 的范围内，72.73%案例的推断结果与真实结果在同一天。结论 腐肉食性昆虫可以简单、便捷地推断 PMI。在 PMI 处于蝇或甲虫一代的时间范围内时，推断结果相对准确；但当 PMI 超出时间范围时，推断结果的准确性会降低。
