When that is the case, many entomologists are called upon the court room to be an expert witness. (CHRON) The environmental conditions of the property in question are paramount to the entrance and location of the bugs in question in order to extract insect evidence. Some of these conditions include the weather in and around the building, the direction the sun is facing/where shade is produced, and the rough temperatures of the ground, air, and between the body (in cases involving death) and the ground. It is very detrimental to the crime scene that beetles and flies are first to be collected, as the very instant they are involved with 3rd party contact, they scatter at blazing speeds. In order to collect a majority of the flies, entomologists often douse them in alcohol, impairing their movement and making them easier to gather. Beetles, being larger in size, are more times than not just directly placed in vials for further research. Larvae, however, must be studied in the body-state they are in at the scene of the crime and must be investigated immediately in order to get direct evidence (foresniccentral). In order for any insects to live the transit between the crime scene and the place of research, they are fed a small amount of beef or similar meats to keep them stimulated. All different species are usually separated into their own containers because many bugs are well known to be cannibals and in order to have more bugs for research, they cannot be eating each other. These methods of insect collection, although primarily used for forensic urban entomology, also have their keen importance in cases of medico-criminal and stored-product forensic entomology as well.
The least developed form of forensic entomology, stored product forensic entomology, primarily focuses on the role the insects extracted have in manufactured products such as food products reported to be infested with insects.
