期刊
JOURNAL OF FORENSIC SCIENCES
卷 63, 期 6, 页码 1673-1683出版社
WILEY
DOI: 10.1111/1556-4029.13784
关键词
forensic science; forensic anthropology; taphonomy; postmortem interval; decomposition; animal models
资金
- National Institute of Justice, Office of Investigative and Forensic Sciences, United States Department of Justice [2013-DN-BX-K0]
While nonhuman animal remains are often utilized in forensic research to develop methods to estimate the postmortem interval, systematic studies that directly validate animals as proxies for human decomposition are lacking. The current project compared decomposition rates among pigs, rabbits, and humans at the University of Tennessee's Anthropology Research Facility across three seasonal trials that spanned nearly 2 years. The Total Body Score (TBS) method was applied to quantify decomposition changes and calculate the postmortem interval (PMI) in accumulated degree days (ADD). Decomposition trajectories were analyzed by comparing the estimated and actual ADD for each seasonal trial and by fuzzy cluster analysis. The cluster analysis demonstrated that the rabbits formed one group while pigs and humans, although more similar to each other than either to rabbits, still showed important differences in decomposition patterns. The decomposition trends show that neither nonhuman model captured the pattern, rate, and variability of human decomposition.
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