运用尸体腐败评分和累积日度法推断死亡时间  

Estimation of Postmortem Interval into Decomposed Corpses by Total Body Score and Accumulated-degree Days

作　　者：罗喜[1] LUO Xi(Jiaxing Public Security Bureau,Jiaxing 314000,Zhejiang,China)

机构地区：[1]嘉兴市公安局

出　　处：《刑事技术》2020年第1期97-101,共5页Forensic Science and Technology

摘　　要：目的验证用尸体腐败程度评分(TBS)和累积日度(ADD)方法在本地区推断腐败尸体死亡时间(PMI)的可行性。方法在四起实际案件中,通过观察尸体腐败征象,计算全身腐败程度的总赋值,运用累积日度的方法推断每具尸体的死亡时间,并与实际死亡时间相比较。结果四起案件中三起准确地推断了死亡日期;余下的一起相差7d,但在上限50%置信区间范围内。结论运用此方法在本地区推断人体死亡时间有适用潜力;同时仍需结合当地特殊的地理气候条件的影响修改细化腐败程度的量化标准,并在广泛样本的基础上建立温度等不同影响因素下的子集方程式,从而提高PM I推断方法的适用性和准确性。Objective To verify the feasibility of estimating postmortem interval(PMI) by total body score(TBS) and accumulated-degree days(ADD) into decomposed human bodies in a certain region. Methods With four actual cases, the TBS was calculated by the observed decomposition changes of human bodies, making its values and the related ADD be drawn into a previously formed equation to estimate PMI. Finally, the estimated PMI was compared with the confirmed actual PMI. Results Of the 4 cases, 3 ones were accurately estimated of the dates of death, with the left one showing difference of 7 days between the estimated and actual PMI, yet being still within the 50% upper limit. Conclusion It is potential and applicable to estimate PMI by TBS and ADD into decomposed human bodies in the explored region. However, the quantification/scoring standard on degree of decomposition still needs to be revised and refined under the consideration of certain local geographic and climatic conditions. Only when establishment of larger sampling data and suitable equations of different influential factors including temperature will the feasibility and the accuracy of the estimation be improved.

关 键 词：腐败尸体 死亡时间 全身腐败程度评分 累积日度 

分 类 号：DF795.1[医药卫生—法医学]