[On using the corpses of large mammals as model objects for studying the postmortem period]

Area of Science:

• Forensic Science
• Thanatology
• Comparative Pathology

Context:

• Postmortem interval determination is crucial in forensic investigations.
• Accurate human corpse models are essential for research and training.
• Ethical and practical limitations exist in using human cadavers for extensive study.

Purpose:

• To validate the use of large mammal (swine) corpses as reliable models for human postmortem studies.
• To identify similarities in decomposition processes and microbial communities between swine and human corpses.
• To assess the utility of swine models in forensic science for determining the time since death.

Summary:

• Postmortem changes, including decomposition stages and necrophilic organism communities, show significant parallels between swine and human corpses.
• Relative impedance parameters in cartilaginous and musculoskeletal tissues exhibit similar postmortem alterations in both species.
• These findings support the recommendation of swine corpses as adequate models for human postmortem research and forensic applications.

Impact:

• Enhances the reliability and ethical feasibility of postmortem interval research.
• Provides a validated animal model for training forensic examiners.
• Improves the accuracy of death investigation and legal proceedings.