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Glaister Equation:
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The Glaister equation is a formula used in forensic medicine to estimate the time since death based on the internal body temperature. It provides an approximate calculation of the post-mortem interval.
The calculator uses the Glaister equation:
Where:
Explanation: The equation calculates the estimated time since death based on the difference between normal body temperature and current internal temperature, divided by the average cooling rate.
Details: Accurate estimation of time since death is crucial for forensic investigations, helping establish timelines and providing valuable evidence in criminal cases and death investigations.
Tips: Enter the internal body temperature in °F. The value must be valid (temperature > 0 and less than 98.4°F for meaningful results).
Q1: How accurate is the Glaister equation?
A: The Glaister equation provides a rough estimate and should be used as a guideline rather than an exact measurement, as many factors can affect body cooling rates.
Q2: What factors can affect the accuracy of this calculation?
A: Environmental temperature, body weight, clothing, air movement, and body position can all influence the cooling rate and affect the accuracy of the estimate.
Q3: When is this equation most reliable?
A: The equation is most reliable during the first 24 hours after death and in relatively stable environmental conditions.
Q4: Are there limitations to this equation?
A: Yes, the equation assumes a constant cooling rate of 1.5°F per hour, which may not hold true in all circumstances, especially in extreme environmental conditions.
Q5: Should this be used as the sole method for determining time of death?
A: No, this should be used in conjunction with other forensic methods and observations for a more comprehensive time of death estimation.