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An experimental field protocol for investigating the postmortem interval using multidisciplinary indicators.

K Schoenly1, K Griest, S Rhine

  • 1Center for Medicolegal Research and Consultation, Albuquerque, NM.

Journal of Forensic Sciences
|September 1, 1991
PubMed
Summary
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This study introduces a new field protocol and apparatus for determining the postmortem interval. The method uses a multidisciplinary approach to analyze insect succession and decomposition patterns for forensic science.

Area of Science:

  • Forensic Science
  • Forensic Entomology
  • Forensic Anthropology
  • Forensic Pathology

Background:

  • Accurate determination of the postmortem interval (PMI) is crucial in forensic investigations.
  • Existing methods for PMI estimation can be limited by environmental factors and decompositional variability.
  • A multidisciplinary approach is essential for comprehensive PMI analysis.

Purpose of the Study:

  • To propose and describe an experimental field protocol for investigating the postmortem interval.
  • To detail the design and function of specialized apparatus for data collection.
  • To establish a standardized method for multidisciplinary teams in forensic investigations.

Main Methods:

  • Utilized specially designed apparatus and both human and pig cadavers in an experimental field setting.

Related Experiment Videos

  • Employed a dual-functioning insect trap to simultaneously capture arriving and emerging insect populations.
  • Collected data on insect succession, soft tissue decomposition, skeletal disarticulation, and environmental influences.

    • Main Results:

    • Presented results of trap performance tests conducted in an arid climate.
    • Included preliminary arthropod data obtained from field-exposed pig carcasses.
    • Demonstrated the protocol's capability to gather simultaneous data on multiple decompositional fronts.

    Conclusions:

    • The proposed protocol provides a robust framework for collecting critical baseline data for PMI determination.
    • This multidisciplinary approach, integrating entomological, pathological, and anthropological data, enhances PMI accuracy.
    • The developed apparatus and methods offer valuable tools for forensic investigators and law enforcement.