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[Research Progress on Estimation of Postmortem Submersion Interval].

H Y Yuan1, R Zhao1, L N Gao1

  • 1School of Forensic Medicine, China Medical University, Shenyang 110122, China.

Fa Yi Xue Za Zhi
|February 7, 2021
PubMed
Summary
This summary is machine-generated.

Estimating postmortem submersion interval (PMSI) for drowned corpses is challenging. This review synthesizes current literature on various methods, including biological and physical indicators, to aid forensic investigations.

Keywords:
forensic pathology; cadaver; drowning; postmortem submersion interval; review

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Area of Science:

  • Forensic Science
  • Environmental Forensics
  • Thanatology

Background:

  • Accurate postmortem interval (PMI) estimation is critical in forensic science.
  • Estimating PMI for submerged corpses (postmortem submersion interval, PMSI) presents unique challenges due to environmental factors and decomposition processes.
  • Existing land-based PMI methods require adaptation for aquatic environments.

Purpose of the Study:

  • To comprehensively review and summarize recent literature on postmortem submersion interval (PMSI) estimation.
  • To introduce and discuss various methods for inferring PMSI in aquatic environments.
  • To provide a reference for forensic practitioners studying submerged corpses.

Main Methods:

  • Literature review of recent studies on PMSI estimation.
  • Analysis of methods based on corpse decomposition phenomena in water.
  • Examination of insect development and aquatic organism succession patterns.
  • Evaluation of changes in physical and chemical indicators of submerged corpses.

Main Results:

  • Corpse decomposition in water follows distinct patterns influenced by aquatic conditions.
  • Insect colonization and aquatic organism succession offer valuable clues for PMSI estimation.
  • Physical and chemical changes in submerged bodies provide additional data points.
  • Multiple indicators can be integrated for more robust PMSI determination.

Conclusions:

  • Estimating PMSI requires considering unique aquatic decomposition factors.
  • A multi-faceted approach integrating biological and physical evidence is recommended for accurate PMSI determination.
  • Further research into aquatic decomposition and indicator reliability is warranted.