What role does a forensic entomologist fulfill in an investigation?

The role of a forensic entomologist in an investigation is to evaluate the life cycle of insects found at the scene. Forensic entomologists study the types of insects present, their developmental stages, and their life cycles, which can provide critical information about the post-mortem interval (PMI) – the time that has elapsed since a person has died. This assessment is vital in establishing timelines and complementing other forensic evidence to aid in solving crimes such as homicides.

Insects colonize decomposing remains in a predictable manner, and by analyzing the species of insects and their stages of development, the entomologist can offer insights into the circumstances of death. For example, if certain insects are found at a scene, a forensic entomologist might be able to ascertain whether the remains have been moved or how long they have been at that location. This specialized knowledge helps law enforcement and legal teams understand the timeline of the events surrounding a crime more accurately.