Insects and criminal science

Insects and criminal science 

when you hear about insects often comes to mind flies, ants or spiders... etc. .
But many opposite There are many benefits from insects for human use in criminal science, insects are often the first to reach the crime scene, spawning Anadromous fly (Lucilia sericata) up in minutes, and then reach other types of insects in the relay.

 
After arriving nurtured and then lay eggs that grow according to the phases of the time, and there are two ways to find out the time of the crime: -
The first way: when the death may have occurred since at least one month; while spawning hit a fly (L. sericata) and fly home immediately reach other insects in late during the decomposition process, and some up only feeds on insects that arrived before him.
The succession of the arrival of insects give entomologist criminal information on the time of death.

The second way: used when the death occurred within a few weeks, and here put fly spawning eggs a few days after their arrival (of death) and the next steps of growth determined by heat the surrounding medium, and on the basis of growth phases and temperature can entomologist Criminal know the time where death occurred.
In terms of the place of death is unable to determine whether the body had been moved from place of death original; If insects on the corpse curious about the region which I found the body the death may have occurred elsewhere, as well as the insects common in the region could indicate to the place of death.
Obstacles and problems: stand this kind of science is unable sometimes to some cases if the death occurred for example in the cold winter, where the insects are less active, or if buried corpse deep, or draw well, or has been frozen; however it often be Insects useful in solving the mystery of crime.
Therefore not all harmful insects, some are useful.