An introduction to postmortem interval estimation in medicolegal death investigations

Throughout the history of forensic medicine, the postmortem interval has been one of the most commonly and thoroughly investigated problems. The importance of an accurate PMI in the context of a medicolegal death investigation cannot be understated due to its utility and application toward investigative determinations including inclusion or exclusion of suspects, determination of time of assault versus time of death, and preliminary victim identification. However, despite its importance, the question of postmortem interval estimation is often answered with a low degree of accuracy as compared to the rates of certainty within other forensic disciplines. While there are various methods that may be utilized for answering the time of death question including both scientific and investigative techniques, the variables that affect the application of these methods to death investigations are abundant. As a result, there are numerous limitations associated with time of death determination in a medicolegal death investigation and the estimation of the postmortem interval must be done with caution and deference to the many variables that affect its accuracy. This article is categorized under: Forensic Anthropology > Time Since Death Estimation Forensic Medicine > Death Scene Investigation Crime Scene Investigation > Education and Formation Crime scene analysts collect entomological evidence during the processing of a death scene. It is important to also check the areas surrounding a body for insects that may have dispersed into the nearby areas.