The technician picked up the camera, pointed it at the corpse and the scene around the scene, and killed the film with one move, shuttering wildly.
Miao Ruixiang, who came from Ningtai County with his family, was humming while wearing a three-piece suit.
He is Jiang Yuan's junior brother and a close disciple of Wu Jun. During his stay in Ningtai, he also followed Wu Jun to see many corpses of abnormal deaths, but he was not qualified or had the opportunity to independently dissect corpses that were truly murder cases.
Only by following Jiang Yuan can you have the opportunity to learn.
Miao Ruixiang made a few gestures, put on his equipment, and then stepped forward to serve Jiang Yuandao in the same way he served his master Wu Jun: "Brother, what should I do now?"
"Prepare the bottle first. What is used here?" Jiang Yuan was talking about the poison bottle used in forensic entomology.
"Ethanol." Miao Ruixiang began to dig out equipment.
These maggots on the corpse, including their eggs and adults, etc., must be caught and killed. This is because there is no point in keeping them alive, and because the maggots continue to grow, it is easy to interfere with the judgment of the time of death.
Therefore, quickly killing insects is the first step in forensic entomology. The poison bottles in textbooks are often a two-level structure with upper and lower layers, just like a duplex gas chamber for insects, with fumigants in the lower layer and plugs in the upper layer.
Insects can be caught and killed at the same time. The stability is relatively high and the effect is good. However, it is a bit troublesome and the cost is slightly higher.
Ethanol is a relatively simple solution. Although it is a little wetter than poisonous gas, the alcohol evaporates quickly and generally does not affect the operation.
Of course, many districts and counties will also use cheaper solutions, such as boiling water.
The little maggots themselves are extraordinarily white and tender. They are usually only a few days old and are smaller than any other veal. Therefore, it is very convenient to blanch them in boiling water and the appearance is relatively intact.
Miao Ruixiang picked up large maggots and threw them into an ethanol bottle.
Catching maggots is mainly to confirm the time of death of the body. Common flies will rush to lay eggs within an hour of the death of the human body. The egg period is usually one to two days, and the maggots hatch out. Maggots usually have three instars.
Each instar looks different. It finally turns into a pupa and then emerges into an adult.
If there are still nutrients on the corpse at this time, this step can be repeated.
To put it in a way that is easier to remember, flies in the egg stage are like the Qi-refining stage. As long as they are scattered in places with resources, they can quickly break through and become maggots in the foundation-building stage. The maggots already have a certain ability to move.
Drilling and drilling on the corpse will go through three important changes, just like building the foundation to the golden elixir, and the golden elixir to the Yuanying.
Maggots in the Nascent Soul stage metamorphose again, which is the pupa stage. The pupa stage will last for a long time, often more than a week.
However, once the pupa stage is broken through, it will be the time of emergence. Just like transforming into a god, there will be no obstacles in the world and you can enter the fairyland.
The god-like adult insects are naturally difficult to catch. The pupa and egg stages are there, so there is no need to catch them.
Only the third-instar maggots of the Foundation Establishment, Golden Elixir and Nascent Soul are difficult to distinguish at first glance. If you take a closer look, they are still burrowing around like pupae and pupae. They cannot escape, but it affects the observation very much.
I had to pick up the big ones and execute a batch of them, then take a closer look.
The main thing is to find their big brother.
It doesn’t matter when the subsequent maggots were born. To confirm the time of death, the most important thing is to determine when the first batch of eggs were sown. Furthermore, where were the first maggots born?
One.
A relatively simple method is to compare sizes.
Among the maggots of the same batch, the one with the strongest power... no, the largest one can be considered as the earliest maggot to be born, and then by working backwards the time of laying eggs, the time of death can be determined.
These are the basic knowledge of forensic science. To master them, you need about LV0.1 level of forensic entomology, and Miao Ruixiang can do it easily.
I saw him picking up the big ones from the clusters of maggots, throwing some into the bottle, and then started to go to the lower third of the body.
This is not to say that he was influenced by Liu Wenkai, but because when flies lay their eggs, they like to lay their eggs in warm, moist and cracked places.
As the saying goes, flies don't bite seamless eggs. In forensic entomology, it means that flies only look for cracks to lay eggs.
As a result, the maggots in the lower third of the body are usually larger and stronger, just like the center of a continent, and maggots from other places are more likely to migrate from the center.
Miao Ruixiang nimbly took out handfuls of maggots from the lower third of the body and stuffed them into a large ethanol bottle.
As he moved and the filling of the maggots disappeared, some rotten meat also fell down.
The smell of corpses in the air began to become stronger.
Jiang Yuan put on a 3m gas mask.
The corpse in the maggot state is almost the smelliest state, second only to the dissection of the giant. In the latter case, even wearing a gas mask cannot stop the spread of the smell, especially when it is indoors, wearing it is worse than not wearing it at all.
It's just right now. We are in the wild and the corpse has not reached its worst time. However, Miao Ruixiang did not wear a gas mask because he wanted to catch maggots, and the resin mask of the gas mask somewhat affected the view of details, and the catching was slow.
, you have to squat next to the corpse for a longer time, and it is in a state of being close to the corpse, so it is better not to wear it.
"It's almost done." Miao Ruixiang stopped when the ethanol in the bottle he grabbed overflowed.
Jiang Yuan took a look, nodded, and said: "You pick out the big ones from the side and throw away the small ones."
"Oh." Miao Ruixiang obediently ran to a place a little further away, moved a survey box and leveled it, then poured the maggots in the poison bottle onto the box, then straightened them one by one with his hands, and then arranged them one by one.
.
Maybe it was because too many were caught and fell too fast. Some maggots were not completely dead and were still squirming on the survey box.
Maggots are different from snakes. Snakes move by their abdominal muscles and core muscles, while maggots rely on telescopicity.
In other words, when the maggot squirms, its length changes.
This completely affects the accuracy of the measurement.
Miao Ruixiang had no choice but to put the wriggling maggots back into the poison bottle and sort the other well-behaved ones first.
On the survey box, there were piles of maggots on the right, and maggots lined up individually on the left. There were more maggots in the queue, and Miao Ruixiang gradually made accurate points and began to eliminate the smaller ones in batches.
At the same time, Jiang Yuan put on three layers of gloves after completing the initial observation.
Of these three layers of gloves, the outer two layers are latex gloves, which are similar to the gloves worn by surgeons during operations. The innermost layer is a PVC glove used to isolate acid and alkali oils, similar to those used in many restaurants when eating crayfish or
Gloves for big bones are similar.
After putting on a full set of protective equipment and confirming that the photo was taken, Jiang Yuan slowly turned over the body while the camera was recording the entire process.
Jiang Yuan's first touch felt greasy. This was because the body fat had liquefied after the body had decomposed.
At this time, the corpse was slippery, and Jiang Yuan had to use his hands hard to grab the corpse. However, the already soft and rotten flesh was crushed again, and the rotten flesh and maggots fell off again.
Ga.
Several crows were hovering in mid-air with red eyes, wishing to kill everyone present.
"It should be a case." Jiang Yuan scratched several pieces of flesh from the corpse, then pointed to the place below where a large group of maggots gathered, and said: "Take a few photos here, take a clear picture, it should be a wound."
Flies not only like to lay eggs in the cracks of Xiasan Road, but also like to lay eggs in the wounds of corpses.
At this time, the specific shape of the wound could no longer be seen where Jiang Yuan was pointing, but after his reminder, a rough shape could still be seen.
Having this shape is enough to confirm the filing of the case.
The presence of a rotting corpse does not necessarily mean that it is a murder. It is also possible that someone died here accidentally. Of course, considering the location of the corpse, a knowledgeable criminal policeman would know that this possibility is extremely low after a quick look.
But anyway, it would be more comfortable to have forensic confirmation.
Jiang Yuan continued to look at the corpse. The milky white latex gloves soon turned into light yellow, and the surface began to become pitted. It was the putrefying liquid of the corpse that corroded the latex.
PVC gloves were not affected by this for the time being. When Jiang Yuan waited for the outermost glove to become uncomfortable, he stood up silently, took off the outermost glove, put on a new latex glove, and then continued to read.
