Postmortem Changes in Animal Carcasses and Estimation of the Postmortem Interval.

Area of Science:

• Forensic Pathology
• Postmortem Changes
• Forensic Science

Background:

• Accurate interpretation of autopsy findings relies on understanding postmortem changes.
• Estimating the postmortem interval (PMI) is vital in forensic investigations for both humans and animals.

Purpose of the Study:

• To review methods for estimating the postmortem interval.
• To highlight the challenges and limitations in current PMI estimation techniques.

Main Methods:

• Review of various methods including gross and microscopic changes, temperature-based techniques, postmortem chemistry, molecular methods, microbial assays, ocular changes, radiography, and entomology.
• Discussion of factors influencing postmortem changes and PMI estimation accuracy.

Main Results:

• No single method reliably estimates the time of death.
• Accuracy of PMI estimation decreases as the postmortem interval increases.
• Extrapolation of human data to animal cases requires caution.

Conclusions:

• Accurate PMI estimation is complex, influenced by numerous factors.
• Future research is needed to develop more accurate techniques for PMI estimation.
• Improved PMI estimation methods will benefit both human and veterinary forensic investigations.