Flies and maggots are the most annoying things. However, for criminal investigators, flies and maggots are rare assistants, and in many cases, flies and maggots often become clues to solve the case. These buzzing little black worms and disgusting little white worms can actually tell the criminal investigators the time and place of the crime, and sometimes even help the criminal investigators find out the cause of the crime
The Record of Clearing Grievances says flies
The story of flies solving crimes has been around since ancient times. The bloodthirsty nature of flies was noticed as early as the Southern Song Dynasty. During the Southern Song Dynasty, there was a criminal officer named Song Ci, who was in charge of criminal cases, and had a lot of experience in the detection of ** cases, and was known as "the first detective in the East." In his book "Records of Clearing Grievances," he recorded the process and methods of solving a large number of homicide cases.
In his book, Song Ci says that flies come quickly after death, and that the first flies to arrive are green flies, but the most common flies that appear on corpses are the fly flies. It can be seen that his observation is detailed.
The "Record of Clearing Grievances" records such a case: A corpse appeared on the side of a certain road, and was slashed with a sickle more than 10 places all over his body, and Song Ci initially thought that he had been killed by robbers, but found that the deceased had not lost any property, and further investigation revealed that the deceased had had had a verbal altercation with a debtor before his death. So, Song Ci ordered the residents near the borrower to hand over their sickles, and he laid seventy or eighty sickles on the ground and waited for the flies to fall. Sure enough, there was a sickle that attracted all the flies. The officer soon found out that the sickle had been used by the debtor. Song Ci rebuked the debtor with this point: "There are no flies in the sickles of the people, and the bloody spirit of murder is still there, and the flies are gathered." How can it be hidden?"At last the murderer was made to prostrate and confess. Of course, this statement is an exaggeration, but it also shows that flies still played a certain role in solving the case.
CangFlies testify
In modern forensic science, there is a special forensic enonology, which is specialized in the study of the role of insects in forensic investigations, and the role of insects in forensic science is the first to recommend flies. Not only can a fly find a fatal wound for the examiner, but sometimes its very presence can tell a lot of questions.
There was a homicide in Maryland, USA, where the deceased was a young woman whose body was highly decomposed when the police found her. At first, the police concluded that the deceased may have died unexpectedly due to a drug overdose, but when investigating the identity of the deceased, it was found that the deceased had no habit of taking drugs or drugs. Later, the on-site investigation found that the maggots on the corpse were very distinctive, concentrated on the chest and neck of the woman's corpse and the palms of the hands, rather than the usual body parts, such as the mouth, nose, eyes, ears, etc., the police determined that these places may be where the wounds were, but they were cleverly concealed, and through further examination, the conjecture was confirmed, confirming that the deceased was killed by external forces, and following this clue to catch **.
In France, there have also been stories of entomologists using flies to help solve crimes. Once, the police found the dead body of a young girl in the woods. Upon investigation, it was found that the deceased had been strangled to death, but there was no clue at the scene. An entomologist was invited to help. At the scene, the entomologist brought back some of the dirt and leaves around the corpse and found several white larvae of flies on the deceased's face. In the lab, entomologists carefully studied the soil and leaves they brought back, then calculated the time it took for the fly larvae to hatch to become adults, and asked about the time when local temperatures changed. Finally, the entomologist told the police that the woman's death had been between 12 and 13 o'clock the day before. According to the exact time provided by the entomologist, the police quickly solved the murder.
MaggotsBugs will solve crimes
What forensic experts most want to see at the scene of the crime are flies and their larvae and maggots. Because these evil flesh worms often "speak" in the place of the dead.
There was a case in Hawaii, USA: ** Occurred in a sugar cane forest outside Honolulu
A body that had been shot to death was revealed. The carcasses were corrupted by maggots from 3 species of flies, two of which came from the countryside and one from Honolulu. Due to the short life cycle of maggots in the city, it was determined by the state of the maggots on the corpses that the victims were killed in the city and then thrown into the sugar cane forest.
The magic of a fly solving a crime is not only that it is alive to provide clues, but also that it can provide clues even when it is dead. In the US state of Tennessee, police found a charred body in a burned car. It was initially determined that the driver was burned to death due to a car fire, but when the medical examiner performed an autopsy, he found dead maggots in the driver's skull. After analysis, the maggots died due to the high temperature generated by the combustion of the car. This suggests that maggots were on the deceased before the car was burned. Then, the medical examiner found a maggot that was still alive on the corpse. Combining these two points, the police believe that this is a ** case, ** moved the body here after the murder, and then set fire to the car in an attempt to destroy the incriminating evidence. The medical examiner, based on the determination of the maggot, concluded that the deceased had been killed 18 days earlier. Later, the case was solved, confirming the forensic conclusions.
Flies like to chase dead bodies, and scientists have pointed out that flies have a very sensitive sense of smell for the smell of dead bodies, even from two thousand meters away, they can smell the blood of dead bodies. While sucking the blood of carcasses and eating carrion, flies can also lay eggs and hatch maggots on carcass. The time of death can be deduced from the time when these eggs and maggots grow.
The characteristics of various flies are slightly different. For example, the big green-headed fly is interested in fresh corpses, as long as it can be found
When it arrives at the corpse, the big green-headed fly lays eggs on the corpse and uses the corpse as a breeding ground for the eggs to hatch. According to this characteristic of the green-headed fly, the time of death of the corpse can be estimated without an error of more than 2 days. This is the most advantageous case for the police to crack.