Forensic entomology is the study of insects and arthropods and their relation to a criminal investigation. Forensic entomology can determine the postmortem interval (PMI) or how long since the descendants’ death, whether the body has been moved since expiring, and what injuries may have been sustained (Ryan, 2011). When decomposition begins, insects establish a colony to lay eggs on the remains; these eggs will hatch into larvae that will eat the human organs and tissues. Forensic entomologists can determine the specific insects present in the body and estimate how long a body has been left exposed by examining the stage of development of the fly larvae; however, these findings are not always plausible. The fly larvae look and act different at each stage of development. The time required for stage development is not only affected by environmental influences such as geographical location, climate, and weather conditions, but also by type of insect. The forensic entomologist must consider these conditions when estimating the postmortem interval. Knowledge of insects, their life cycles, and their habits make entomological evidence a priceless tool for an investigation. Forensic entomology has proved its significance in a number of cases; though circumstances such as weather, temperature, and time of year clearly affect the development of insect infestation, and the expert must keep these in the forefront of his/her mind (Innes, 2000).
Forensic entomologists measure the PMI derived from the age of the insect present, which may or may not estimate the postmortem interval in full. A portion of the PMI can be corroborated by information provided by the forensic entomologist, while the actual postmortem interval est...
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...tation, the body was clearly lying exposed only since September 17 (Innes, 2000). The maggot evidence corroborated other evidence in the case, ensuring the conviction of Ruxton (Henley, 2010).
Forensic entomology is a priceless addition to the investigation of a suspicious death. It has assisted in the conviction of many criminals since its inception. Many things can be determined through the presence and absence of insects on human remains. Forensic entomologists can conclude the weather, time of year, and geographical location from examining the insects present on the body. Types of wounds, toxicology, and whether the corpse has been moved can also be figured out from the study of the insects and the colonization of the insects. A forensic entomologist must remember everything that can make a difference in the investigation before concluding on their findings.
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