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Updated: Jan 30, 2026

How to Measure Cortical Folding from MR Images: a Step-by-Step Tutorial to Compute Local Gyrification Index
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Measuring Desiccation Using Qualitative Changes: A Step Toward Determining Regional Decomposition Sequences.

Melissa Connor1, Christiane Baigent1, Eriek S Hansen2

  • 1Department of Social and Behavioral Sciences, Forensic Investigation Research Station, Colorado Mesa University, 1100 North Avenue, Grand Junction, CO, 81501.

Journal of Forensic Sciences
|January 22, 2019
PubMed
Summary
This summary is machine-generated.

A new total body desiccation score (TBDS) improves postmortem interval (PMI) estimations in arid regions. This decomposition scoring system uses human remains and longitudinal data for accurate decomposition analysis.

Keywords:
arid environmentdesiccationforensic sciencetaphonomy

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Area of Science:

  • Forensic Anthropology
  • Taphonomy
  • Decomposition Science

Background:

  • Accurate postmortem interval (PMI) estimation is crucial in forensic investigations.
  • Existing decomposition models may not adequately address regional environmental variations, such as desiccation.
  • Development of region-specific decomposition scoring systems is needed.

Purpose of the Study:

  • To develop and validate an enhanced decomposition scoring system, the Total Body Desiccation Score (TBDS).
  • To assess the correlation between the TBDS and Accumulated Degree-Days (ADD) for PMI estimation.
  • To provide a model for creating regional decomposition scoring systems.

Main Methods:

  • Observation of 40 human remains to develop the TBDS, incorporating categorical and qualitative tissue changes.
  • Testing the TBDS using retrospective photographic data from eight donors over a 3-year period (112 data points).
  • Statistical analysis correlating TBDS and Total Body Score (TBS) with Accumulated Degree-Days (ADD).

Main Results:

  • The TBDS was developed as a categorical scoring model with qualitative descriptors of decomposition.
  • TBDS showed a stronger correlation with ADD compared to TBS for Total Body Scores above 20.
  • The developed system provides a reliable method for assessing decomposition in desiccating environments.

Conclusions:

  • The Total Body Desiccation Score (TBDS) is a viable tool for refining postmortem interval (PMI) models in regions prone to desiccation.
  • The methodology used for TBDS development can serve as a template for creating other regional decomposition scoring systems.
  • This research highlights the importance of human remains and longitudinal data in developing accurate forensic decomposition models.