I made a copy at the police station

Chapter 110 New Copy: The Corpse’s Endorsement (Please subscribe, please vote!)
Li Xiang put on a white coat, carried the toolbox at the door of the office, and followed the man out of the office.

I followed him all the way to the parking lot and got into the police car.

"Master is on a business trip, I have to rely on you this time!"

In the car, the man looked at Li Xiang for help.

"Don't, don't rely on me, I can't do it."

"If you don't rely on me, who can you rely on? I'm even less reliable. I'm a forensic assistant. I can lift the body, but my hands are shaking when I hold the scalpel."

"My hands are shaking because my hands are shaking. It's not surgery, so you're still worried about being complained!"

"..."

The two were chatting in the car, and Li Xiang also knew something about the person in front of him.

His name is Zhang Yongliang, and he is an assistant in the forensic department. He is not a formal forensic doctor, but he is also working hard in this area.

When Li Xiang heard this, it was over.

In the last dungeon, a master gave guidance on marksmanship, but now it was better. Both of them had only half a bucket of water. No, there was no water in their own buckets at all.

But Zhang Yongliang felt that the water in his bucket was very full!
The police car soon reached National Highway 339, and after driving for a while, Li Xiang saw a small forest. Next to the forest, several police cars were parked, and some police officers used cordons to circle the small forest.

"Comrades from the forensic department are here."

"Come in quickly!"

After Li Xiang got out of the car, he walked into the cordon with his tool box.

"Hello, I am Wang Tianjun, the captain of the criminal police. Mr. Qin is not here this time, so I will have to work harder for you."

"It's okay, it should be!"

Li Xiang looked very calm on the surface, but in fact he was very panicked inside.

If you ask him to fight and catch thieves, it is his duty to do so.

But when you asked him to dissect a corpse, he became a little flustered.

The weather in June was a bit hot, and Li Xiangye sweated slightly on his nervous forehead. He cheered himself up secretly, and then followed Zhang Yongliang into the dense forest.

As the distance got closer, Li Xiang could already smell a very foul rotten smell. In hot weather, such a smell was simply suffocating. Even though he was wearing a mask, he wanted to take a breath of oxygen to calm down.

But the actual conditions did not allow it, so he had no choice but to hold his breath. When he couldn't hold it in anymore, he quietly breathed in a little, as if he was taking a breath of oxygen before the stench could react.

There were a lot of red-headed flies flying everywhere in the dense forest. There were several policemen squatting on the ground in front of them, carefully surveying the crime scene.

In modern criminal investigation, the division of labor has become very detailed, and solving cases no longer relies on the reasoning of a single detective. Instead, various police departments work together to summarize all clues to solve the case.

Li Xiang put his index finger wearing a white glove against the tip of his nose outside the mask. The smell here was even more smoky. He admired these policemen who were squatting on the ground and working. How did they overcome this smell?
Although he had participated in several cases, they were either just dead or already in the shape of bones. This was the first time he encountered such a highly decomposed corpse. Unexpectedly, he would have to dissect her the first time he encountered it. .

Isn't this embarrassing for honest people~
With anxiety, Li Xiang finally saw the goal of this trip.

This is a highly decomposed corpse, the deceased is either male or female.

Identified by the hair, the deceased was probably a woman, lying prone on the ground. The entire body was basically naked, with only one pair of socks on her feet.

Her body was covered with maggots, and there were various ulcers on her skin. The maggots were burrowing in and out of her skin. Li Xiang, who did not have trypophobia, also felt that her scalp was numb, her stomach was churning, and she wanted to vomit something. But he resisted the urge to vomit and swallowed it hard. The feeling was unbearable.

"Well, this corpse has been here for a while. The maggots have grown so big."

The maggots on the corpse were not the white maggots you usually see, but were a little black, which was even more disgusting. Compared to the black maggots, Li Xiang thought the white maggots were quite cute.

In addition to maggots, there are many other insects, which is like a feast of insects.

"You can take the body away. We have pretty much inspected the scene."

The technology and on-site investigation work were almost the same, and the body could be taken back, so Zhang Yongliang took the body bag and prepared to pack the body and take it back to the forensic autopsy room.

"Li Xiang, help me."

Li Xiang looked at his snow-white gloves. He really didn't want to use them, but looking at Zhang Yongliang's expectant eyes, he gritted his teeth: Anyway, he would have to dissect later, so what's the point of moving it now?
Thinking of this, he suppressed his inner discomfort and moved the body into a body bag with Zhang Yongliang.

"Let's go back to work."

Li Xiang really wants to quit the game. Forensic medicine is really not a human job. Even if he deals with corpses every day, this putrid smell is really unbearable!
After moving the corpse, Li wanted to take off his gloves, but felt that there was a corpse smell on his hands. This smell is really not easy to get rid of.

In order not to get stuck in the dungeon, this dungeon still needs to be cleared. Li Xiang can only console himself that he has many skills and is not overwhelmed. After completing this dungeon, he can learn another professional skill.

In the anatomy room,

With the help of Zhang Yongliang, the body was moved to the autopsy table.

"Li Xiang, let's start!"

"start?"

Looking at the corpse in front of him, Li Xiang didn't know what to do as the first step. How could he start?
"Yes, start."

"I won't!"

"Stop making trouble, you are a serious forensic doctor. If you can't do it, how can I do it?"

"You don't know it at all?"

"Well, I know a little bit."

"Then you start."

Regarding forensics, Li Xiang really didn't know anything about it. Anyway, in the dungeon, he didn't feel embarrassed. Among the two people present, Zhang Yongliang was obviously better than him, but not by much.

"." Zhang Yongliang felt that he was under a lot of pressure. People who knew how to do it had to pretend to be novices. He didn't know what to do at this time.

"Don't make trouble. If we screw up this case, master will come back and tear us apart."

"So you have to work harder."

Li Xiangcai is not afraid of the master he has never met before. At worst, he will just pat his ass and leave. "Well, let's confirm the time of death of the deceased first!"

"How to confirm?"

"After death for more than 3 days, it is difficult to deduce the accurate time of death using ordinary pathology."

"What should I do?"

"I heard from my master that there is a branch of forensic entomology in forensic medicine, which determines the time of death based on the growth and development stages of the insects on the corpse. The time of death estimated by using maggots can be up to ten days and a half, or even as long as several months. Can we judge the time of death of the body based on the maggots growing on the body?" Although Zhang Yongliang is a forensic assistant, he still understands some forensic knowledge under the influence of the forensic department.

"Then let's start."

"You really don't know?" Zhang Yongliang looked at Li Xiang suspiciously.

"Let's start. When the master comes back, you won't have a chance to show it off."

Li Xiang gave this spirited young man a boost of encouragement, making him even more convinced that Li Xiang was giving him a chance to show off. He suddenly became excited and incoherent: "Okay, I'll get the book right now."

He had only heard about forensic entomology. He once saw this book when he was clearing the bookshelf for his master. Now that he thought of this, he was immediately ready to get the book and combine theory with practice. This way he can learn more effectively. quick.

After a while, Zhang Yongliang came over with the professional book.

"I found out that the development of flies goes through four stages. At normal temperature, the development time of the egg stage generally lasts for 1-2 days. The larvae of flies, commonly known as fly maggots, can be subdivided into three instars, lasting a total of About 6-10 days. The pupal stage usually lasts from one week to more than ten days. Finally, the pupa emerges into an adult."

"Different types of flies have different development speeds. In addition, factors that affect the types and development speed of fly maggots on corpses include temperature, humidity, light, corpse condition, etc."

Zhang Yongliang turned the book to the common ones called Calliphoridae, which are commonly used species to estimate the time of death.

The maggots on this corpse were of this species.

Li thought that according to the instructions in the book, they collected insects from the corpses, killed some of them with boiling water, and then preserved them in ethanol for future analysis. Others were sent to the culture room by him to simulate the temperature of the crime scene. Culture was carried out to further confirm its developmental stage.

The carcasses in the early and middle stages are mainly flies, and Coleoptera mostly occur in the middle and late stages.If empty pupal shells of flies or coleopteran insects such as the family Corycopodidae and Dermestidae are found on the corpse, it means that the corpse has been around for a long time.

Fortunately, their corpses belonged to early and middle stages of red-headed flies.

There are several stages of corpse decomposition:

Fresh period: generally lasts for 1-3 days and extends as the temperature decreases. There is no obvious change in appearance. Flies appear and lay eggs during this period. In summer, adult flies will lay eggs on corpses outdoors within a few hours.

Swelling period: ranging from several days to dozens of days, the corpse is swollen, the smell of decay is strong, and fly eggs hatch out larvae. At this time, a large number of adult flies, ants and beetles will still be attracted to the corpse.

Decay period: ranging from several days to dozens of days, with high degree of decay, tissue liquefaction, strong smell, large number of maggots feeding, causing many holes and exposed bones.Maggots pile up and tumble, occupying most of the body. The number of adult flies that come to lay eggs decreases, and pupae and pupal shells may appear after emergence.

The current state of this female corpse is already in a state of decay.

Finally, there is the drying stage: only hair and bones remain, most of the insects have left, and only some ants and beetles remain.

Li Xiang and Zhang Yongliang were comparing books while working on the corpse. For a moment, they actually entered a learning atmosphere and unconsciously ignored the unpleasant smell of the corpse. The picture was a bit beautiful for a while.

It's unbearable to look at.

"If it is known that it takes 20 days for red-headed blowfly larvae to develop into the adult stage under on-site conditions, and the collected fly maggots emerge into adults after 10 days, then we will know that the age of the fly maggots found at that time is 10 days, and then combined with eggs Using the period length data, we can infer when the adults lay eggs, which is when death is likely to occur."

The two people compared the books and operated very rigorously and meticulously step by step.

"Yes, if it is winter, it is not enough to just infer the time when flies lay eggs. You also need to know the time from death to when flies find the body. But outdoors in summer, flies can generally smell out the dead eggs very quickly. The smell, to reach the body, the process takes less than an hour and can be ignored.”

The two people who worked hard could not tell at all that one of them was a forensic assistant who knew nothing, and the other was an intern forensic doctor who knew all nine things.

People who don't know, really think that the two of them are forensic doctors.

After completing the sampling of all insect species, Li Xiang and the others began to clean the insects from the corpse. They also began to examine the body's height, age and cause of death.

Height is easy to tell, just a simple measurement is enough.

Although the age check is complicated, there are still many ways to detect it. This is not difficult for two academic masters who work hard in the anatomy room.

At this time, they were going to use the pubic symphysis to determine the age of the deceased.

First, remove a piece of the pubic bone from the deceased.

They need to accurately identify the morphological features on it, and then calculate the age of the deceased based on the corresponding formula. The results deduced by this method are very accurate, with an error of only two years.

Of course, even with this method, they found the identification method in the book and made a detailed comparison based on the pictures in the book.

There are 9 reference points for the morphological characteristics of the pubic symphysis surface, which are the symphyseal sulcus, ossified tubercle, lower end of the symphyseal surface, ventral oblique surface, dorsal edge, ventral edge, origin of the oblique surface, symphyseal surface shape and symphyseal surface Bone quality.

The characteristics presented by these reference points are closely related to changes in people's age.

Li Xiang and Zhang Yongliang rated the morphological characteristics of the pubic symphysis surface using the scoring table in the book, and introduced the corresponding grade points into the formula for calculation: Y=M+X1+X2+X9.

Y=inferred age, M: constant (M=16.45 for men, M=15.32 for women), X: grade points for each reference point.

Finally, after much deliberation, we got Y=32.6.

Finally, it was the turn to determine the cause of death and the judgment was completely blind.

Li Xiang and the others looked at the skin that was riddled with holes and the corpse that was almost a puddle of rotten flesh. With their poor knowledge reserves, they were unable to investigate the cause of her death.

Two weeks later, Li Xiang and Zhang Yongliang handed over an autopsy report that they believed to be their best effort.

The deceased was a female, 160cm tall, about 32 years old, and died 14 days ago.Cause of death: Unknown, only an IUD was found inside the body.

Afterwards, Li Xiang submitted the main task in the system.

[Ding, the completion of the main mission is 75%, the reward skill for completing the mission for the first time: Forensic Science, the mission rating: C level, the reward skill experience +1000]

Suddenly, Li Xiang's brain was flooded with a huge amount of information, including basic medicine, clinical medicine, related criminal science technology, and forensic identification technology. The breadth of knowledge far exceeded the previous copies.

Although it is only a basic level of knowledge, if Li Xiang were to learn it by himself, he would not be able to finish it in three to five years.

It took Li Xiang a long time to digest it before he could ease the aftereffects of this enlightenment. At this time, he closed his eyes and slowly sorted out the knowledge that appeared in his mind, verifying it with the sentence in the copy.

If he did it again, he would definitely do better this time.

　Thanks to the student 'Youqin Siwang' for the 100 starting coins!
　　
　
(End of this chapter)