IntroductionForensic entomology is the study of how insects and the dead are related to each other. The history of forensic entomology dates back to the 13th century in China. Through extensive research, trial and error, future examiners and entomologists were able to learn about the postmortem interval and also the general cycle of insects in a body at any given time in the interval. Since then, entomology has evolved into a reliable method of forensic evaluation. The technology has improved over the years and has opened the door to more in-depth analysis and evaluation of insects that are the product of dead and decaying corpses. As a result of these improvements, insects can offer a lot of information about the corpse, such as whether it was sick or even the cause of death. HistoryIn the 13th century, the Chinese lawyer Sung Tzu, provided a case in his book “Hsi yuan chi lu” a stabbing near a rice field and the next day there were blowflies around the body. Several centuries later, in 1976, the concept of blowflies' attraction to blood was confirmed by Leclercq and Lambert when they found blowflies laying eggs in the blood of a corpse just six hours after death (Hart, 2010). witnessed and noticed since the Middle Ages. The study of worms during this period, and even in the present, offers information on what the worm does to the body at different time intervals, and also on the life cycle of a worm. Many have described that the worms eat away internally, which leads to reduction in weight and size, but often leaves the skin itself intact and preserved. During the 18th and 19th centuries, exhumations (digging up buried bodies) were becoming popular...... center of paper ......in the field of criminal justice, it is about calculating the post-mortem interval of a corpse or a neglected individual (Hart, 2010). Conclusion With a long history, dating back to the 13th century, forensic entomology has become an important factor in helping to understand the postmortem interval of a deceased or neglected individual. It is important to understand the context and cycles of various insects to accurately measure this post-mortem interval. Research is constantly carried out to ensure that the science of forensic entomology remains up to date. Since the 13th century, the discipline has crossed many bridges and turned into a useful aid in the field of criminal justice. Although it only became popular in the United States in the mid-1970s, it has proven useful in the field of criminal justice.References