Which data source contributes the time aspect of postmortem interval?

• A. Entomology-derived PMI estimates
• B. Anthropological bone morphology
• C. Odontological dental measurements
• D. Genetic sequencing results

Answer: (A)

In PMI estimation, insect development provides the time clock because colonizing insects progress through predictable life stages after death, and the duration of those stages is driven by environmental temperature. By identifying the species present, the most mature life stage observed, and applying temperature-based growth models, forensic entomologists can estimate how long the body has been decomposing. This makes entomology the data source that directly contributes the time aspect of the postmortem interval. Other data sources describe the deceased’s biological profile or identity—bone morphology helps estimate age, sex, or stature; dental measurements aid in age and identification; genetic sequencing is used for identity and kinship—rather than providing a direct timing measure for PMI.