تسجيل الدخول

تسجيل

THE POSTMORTEM INTERVAL

المؤلف:  Max M. Houck، Jay A. Siegel

المصدر:  Fundamentals of Forensic Science

الجزء والصفحة:  223

2026-07-25

65

THE POSTMORTEM INTERVAL

The forensic entomologist’s main contribution to death investigation is an estimate of the PMI. Being able to provide a time range for when the crime occurred is of great importance in limiting the number of suspects who may or may not have an alibi. If the victim is unidentified, the PMI may also assist in narrowing the number of potential missing persons. Calculating an estimated PMI sets a minimum and maximum time since death based on the insect evidence collected and developed. The maximum limit is set by the insects present on and around the body at the time of collection; this limit is moderated by the recent weather conditions that could help or hinder those species’ development. A minimal PMI is estimated by the age of developing immature insects and the time needed for them to grow to adulthood under the conditions surrounding the crime scene. A maximal PMI can be difficult to estimate because the uncertainty widens as time and decomposition continues. It is imperative that forensic entomologists con duct outdoor studies with local species in various seasonal conditions to establish a baseline reference. These data can provide invaluable information in estimating PMIs, especially in circumstances where the environmental indicators may be vague.