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Research Progress of Aquatic Corpse Decomposition and Postmortem Submersion Interval Estimation.

J J Guo1, X L Fu1, J F Cai1

  • 1Department of Forensic Medicine, School of Basic Medical Science, Central South University, Changsha 410013, China.

Fa Yi Xue Za Zhi
|September 19, 2019
PubMed
Summary

Estimating the time since death in water (postmortem submersion interval) is challenging due to numerous factors affecting aquatic decomposition. This review explores methods for improving postmortem submersion interval estimation in aquatic environments.

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Area of Science:

  • Forensic Science
  • Environmental Science
  • Thanatology

Background:

  • Decomposition of human corpses in aquatic environments differs significantly from terrestrial decomposition.
  • Numerous environmental factors complicate the estimation of the postmortem submersion interval (PMSI).
  • Research on aquatic decomposition is less extensive than terrestrial decomposition, presenting practical challenges.

Purpose of the Study:

  • To review the stages and influencing factors of aquatic corpse decomposition.
  • To summarize current research progress in estimating the postmortem submersion interval (PMSI).
  • To provide a reference for aquatic decomposition research and forensic practices.

Main Methods:

  • Literature review of existing studies on aquatic decomposition.
Keywords:
forensic pathology; cadaver; drowning; postmortem submersion interval; estimation of postmortem interval; review

Related Experiment Videos

  • Analysis of factors influencing decomposition rates in various aquatic settings.
  • Examination of methods for PMSI estimation.

    • Main Results:

    • Aquatic decomposition follows distinct stages influenced by environmental variables.
    • PMSI estimation is complex, with various methods showing potential.
    • Key estimation approaches include decomposition stages, postmortem phenomena, aquatic insects, biofilm, and physicochemical analyses.

    Conclusions:

    • Accurate PMSI estimation in aquatic environments requires considering multiple factors and employing diverse methodologies.
    • Further research is needed to refine and validate methods for aquatic postmortem interval determination.
    • This review highlights the need for standardized approaches in aquatic forensic investigations.