[Molecular genetics and determination of time since death - short communication]

Area of Science:

• Forensic Science
• Molecular Biology
• Biochemistry

Background:

• Accurate post-mortem interval (PMI) estimation is crucial in forensic investigations but remains a significant challenge.
• Traditional methods relying on physical changes (e.g., rigor mortis, livor mortis) are often inaccurate due to environmental and individual factors.
• There is a need for reliable PMI estimation methods that are independent of ambient conditions.

Purpose of the Study:

• To explore the potential of molecular markers for accurate post-mortem interval estimation.
• To identify reliable indicators for determining time since death in forensic practice.

Main Methods:

• Review of current research in molecular biology concerning post-mortem degradation.
• Analysis of nucleic acid (DNA and RNA) degradation patterns as potential indicators of PMI.
• Comparison of molecular methods with traditional physical indicators for PMI determination.

Main Results:

• Post-mortem degradation of nucleic acids (DNA and RNA) shows potential as a reliable indicator of PMI.
• Nucleic acid degradation is less influenced by external factors like temperature and body condition compared to physical changes.
• Molecular markers offer a promising avenue for more precise PMI estimations.

Conclusions:

• The degradation of DNA and RNA presents a viable and potentially more accurate method for estimating the post-mortem interval.
• Molecular biology approaches offer a significant advancement in overcoming the limitations of traditional PMI estimation techniques.
• Further research into nucleic acid degradation kinetics can refine forensic science practices for time since death determination.