Journal
JOURNAL OF FORENSIC SCIENCES
Volume 62, Issue 5, Pages 1145-1150Publisher
WILEY
DOI: 10.1111/1556-4029.13398
Keywords
forensic science; forensic anthropology; forensic taphonomy; human decomposition; body mass; postmortem interval estimation
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Forensic taphonomy explores factors impacting human decomposition. This study investigated the effect of body mass on the rate and pattern of adult human decomposition. Nine males and three females aged 49-95years ranging in mass from 73 to 159kg who were donated to the Complex for Forensic Anthropology Research between December 2012 and September 2015 were included in this study. Kelvin accumulated degree days (KADD) were used to assess the thermal energy required for subjects to reach several total body score (TBS) thresholds: early decomposition (TBS 6.0), TBS 12.5, advanced decomposition (TBS 19.0), TBS 23.0, and skeletonization (TBS 27.0). Results indicate no significant correlation between body mass and KADD at any TBS threshold. Body mass accounted for up to 24.0% of variation in decomposition rate depending on stage, and minor differences in decomposition pattern were observed. Body mass likely has a minimal impact on postmortem interval estimation.
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