Chapter 593： Causes of waxing

"It should be, but it's not complete. It's just that some parts have waxed." Chen Yan frowned. After solving so many cases, Chen Yan has seen many types of corpses, but waxing this kind of corpse, Chen Yan Have never encountered. Taking a few steps forward, Chen Yan lifted the white cloth covering the corpse. It really was waxing! This kind of corpse change, Chen Yan had learned about it when he was in college, but he only took it with his pen and did not go into too much detail. introduce. But Chen Yan had obtained the autopsy skill special rewarded by the system, so now he is very familiar with the waxing of corpses. Waxing is a manifestation of late changes in a corpse. After death, the corpse will change rapidly. From death to within 24 hours after death, it is generally considered to be the early change of the corpse, and then it is the beginning of the late change of the corpse. There are many ways to classify the late changes of corpses, but they can be roughly divided into two categories, one is damaged corpses, and the other is preserved corpses. There are two types of changes in damaged corpses: one is that the deceased was injured before death and the other is that the deceased is damaged after death. Preservative corpse changes refer to the natural changes in the corpse due to the influence of environmental factors after death. It takes one to one and a half years for the corpse to show full waxing. There are a lot of homicides in the whole country every year, but there is one case of corpses becoming waxy every few years. Since there are no clues at the scene, we can only find clues from under the corpse. It has nothing to do with the thickness of the deceased's fat, because the wax itself is a substance that seeps out from the body surface before the fat melts. There must be too much fat, and it is naturally possible to form wax. However, without an environment with a high oxygen concentration, the spoilage reaction cannot continue, because the spoilage reaction of very few fungi is an oxygen-free reaction, and once oxygen is missing, that kind of reaction is difficult to regress. In particular, the temperature, the oxygen content of the surrounding environment, and the degree of ventilation will have a decisive effect on the later changes of the corpse. Chen Yan nodded, and removed the whole white cloth covering the corpse. There is also a kind of ossification. Before the flesh, skin, etc. of the corpse are completely decomposed, only the bones are left. Because of the hypoxic state in the water, the appearance maintained a one-fourth similarity to that after birth, but the corpse wax on the neck looked greasy and not disgusting. Eventually waxing is formed. But it must be exposed indoors, especially when it is exposed to direct sunlight and the surrounding temperature and humidity are suitable, the speed of ossification will be very slow, and ossification will occur in the shortest month. In the corpse discovered that time, only the chest and abdomen showed waxing phenomenon, the head was not partially waxed, but it was complete, the calf had no partial phenomenon, and all seven limbs were not. As for the corpses at the scene, because they were in a closed water storage tank, exposed to oxygen, the space was sealed, and the time was sufficient, the current phenomenon of waxing of corpses was formed. In some relatively closed environments, the corruption reaction stops, but the fat on the skin of the corpse can deoxidize and condense, and then it will quickly seep out from the pores of the skin, forming a substance similar to oily wax on the surface of the corpse. The so-called waxed corpse does not mean that part or all of the corpse is covered with a layer of wax-like substance, and the whole corpse is as if sealed with wax. Definitely rank the level of nausea and horror of the phenomenon of late corpses, and Chen Yan believes that waxing of corpses is definitely ranked behind the concept of giants. The fat in the abdomen and chest of the corpse was the least, and the waxing of the corpse was also the slightest. The entire chest and abdomen seemed to be wrapped in oil wax, which was crystal clear. Several detectives around just glanced at it and squatted nearby to vomit. . Taking off his gloves, Chen Yan heavily lifted the corpse's arm. After observing for a moment, Chen Yan discovered some clues. Before the human body dies, the temperature inside must be suitable, and the decay reaction will immediately occur inside the corpse. It is impossible to complete the slow ossification of the corpse within a month. "How is the surrounding investigation?" Of course, that is just the average time. The environmental factors of the corpse must be suitable, and the waxing of the corpse is not possible in a shorter period of time. If it is suitable, the waxing of the corpse will take longer. Also no. The specific cause of waxing has not been scientifically stated until now. What we know is that it is impossible for corpses to form waxing in an oxygen-deficient and closed environment, especially in confined water. less likely. Wu Zhiguo shook his head: "It's an open-air terrace outside. Based on the current state of the corpse, the preliminary estimate of the time of death is at most less than eight months. For such a long time, the wind and rain have left all traces." The surrounding environment must be so humid, and the temperature is very low. If the body evaporates water quickly after decay, it will form a mummified corpse, which is even more difficult to see in desert areas. That kind of corpse state is very common, because the reasons for its formation are relatively harsh. However, all corpses submerged in water can be waxed, and the most important point is that the space is relatively airtight. Coupled with the gnawing of fish in the water, the corpse will eventually be decomposed. For example, the giant view that Chen Yan has seen before is that after the corpse is highly decomposed, the interior is filled with gas, causing the corpse to swell, the eyes are bulging, the skin on the inside of the lips is bulging, and so on. There is not a relatively common type of frozen corpse. UU Reading In extremely cold regions, the corpse is completely frozen before death, and there will be no changes, even the skin color of the dead corpse will not change significantly , is basically consistent with the appearance after birth, and as long as there is no thawing, this situation will continue. The speed of ossification of a corpse mainly depends on the environment in which the corpse is located. The time period for ossification of corpses buried on the ground is generally too long, and it is even impossible for some unknown reasons to produce final ossification. Except for the extremely common tanning corpse, the horror of waxing corpses should be the seventh place. Except for those slightly more common late-stage final states of corpses, there is no such thing as the partially waxed corpse behind the unspoken statement. According to the statistics and analysis of the waxed bodies found over the years, the shortest time for the body to form waxed body is eight months, and the phenomenon of waxed body will appear in some parts of the corpse after eight months. As Wu Zhiguo said, there is no particular rule in the formation time of waxed corpses, but that rule is a qualitative rule rather than a statistical one. Few people have misunderstood the ossification of corpses. They think that the skeletalization of corpses will take a long time, but in fact it is certain. The most common ones are actually not ossified corpses. Before the decomposition of the corpse is complete, no organic matter is decomposed, and only bones remain. That's not why the corpses outside the river will be waxy, because the flowing river water still has no oxygen, and the microorganisms in the water will also act on the corpses. But for corpses that must be in mud or swamps, the probability of waxing is relatively small. The age of the deceased is preliminarily judged to be around 30 years old, male, and in terms of body shape, he is a relatively plump type. Even Chen Yan frowned, but that kind of corpse smelled like a corpse, and his nose was at least a little broken. "The only clue is that the lock has not been broken, but there are no fingerprints underneath."