Application of Sarcosaprophagous Insects to Estimate the Postmortem Interval in 11 Cases.
10.12116/j.issn.1004-5619.2021.410201
- Author:
Yu WANG
1
;
Ming Qing LIAO
2
;
Ying Hui WANG
1
;
Qiang GONG
3
;
Wang XU
1
;
Man WANG
1
;
Ya Nan ZHANG
1
;
Jiang Feng WANG
1
Author Information
1. Department of Forensic Medicine, Soochow University, Suzhou 215000, Jiangsu Province, China.
2. Zhongshan Public Security Bureau, Zhongshan 510080, Guangdong Province, China.
3. Criminal Investigation Brigade of Chongqing Public Security Bureau, Chongqing 400070, China.
- Publication Type:Journal Article
- Keywords:
forensic entomology;
postmortem interval estimation;
sarcosaprophagous insects;
cases analysis
- MeSH:
Animals;
Autopsy;
Diptera;
Entomology;
Insecta;
Larva;
Postmortem Changes
- From:
Journal of Forensic Medicine
2021;37(3):332-337
- CountryChina
- Language:English
-
Abstract:
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 Chrysomya megacephala （Fabricius）, Chrysomya rufifacies （Macquart）, Chrysomya nigripes （Aubertin）, Lucilia sericata （Meigen）, Hydrotaea spinigera Stein, Muscina stabulans （Fallén）, Sarcophagid （species were not identified）, Megaselia scalaris （Loew）, Hermetia illucens （Linnaeus）, Saprinus splendens （Paykull）, Creophilus maxillosus （Linnaeus）, Dermestes maculatus （De Geer） and Necrobia ruficollis （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.
