The post-mortem interval is the time that has elapsed since an individual's death. When the time of death is not known, the interval may be estimated, and so an estimated time of death established. There are standard medical and scientific techniques supporting such an estimation.

How is postmortem interval determined?

Estimation of the post mortem interval is defined as the length of time between death and corpse discovery. ... Forensic entomology is considered the most accurate method for estimating the elapsed time since death, particularly when more than 3 days have elapsed.

What is minimum postmortem interval?

Termed “minimum postmortem interval” (_minPMI), the entomological estimation of this time period is based on the assumption that insects, commonly found in association with decomposing remains, arrive at a carcass shortly after death.