IPMICALC: an Integrated Post-mortem Interval Calculator

Area of Science:

• Forensic Science
• Biochemistry

Background:

• Accurate post-mortem interval (PMI) estimation is vital for forensic investigations.
• Vitreous humor analyte concentrations, particularly hypoxanthine and potassium, show correlation with PMI.
• Current PMI calculation methods can be complex and time-consuming.

Purpose of the Study:

• To introduce a user-friendly web resource for simplifying post-mortem interval estimation.
• To provide a rapid, easy, and reliable method for determining PMI using biochemical and physical data.

Main Methods:

• Development of a web application utilizing mathematical models.
• Integration of vitreous humor biochemistry (hypoxanthine, potassium) and physical variables (ambient temperature, rectal temperature, bodyweight).
• Calculation of PMI with 95% confidence intervals.

Main Results:

• The web resource successfully determines PMI based on the implemented models.
• The application offers a simplified and reliable approach compared to traditional complex calculations.
• The tool is freely accessible to users.

Conclusions:

• The developed web resource effectively simplifies and enhances the accuracy of post-mortem interval estimation.
• This tool offers a valuable and accessible solution for forensic practitioners.
• The integration of biochemical and physical data provides a robust method for PMI determination.