Chapter 756: Twists and Turns (Part 2)

Medical Examiner's Office.

The fight between Chen Chuan and Jiang Hai was undoubtedly an untimely incident, but it was this interruption that gave Chen Shu a sudden inspiration.

He stood up and walked around the small room. When everyone saw this, they held their breath and did not dare to disturb him without authorization, for fear that their every move would interrupt his thinking.

Jiang Hai originally wanted to put forward some more ideas of his own, but when Chen Chuan glared at him with eyes that could kill someone, he immediately retracted his neck obediently and waited quietly.

After a while, Chen Shu stood still and first put forward a reasonable hypothesis: "If the deceased lost consciousness due to drunkenness before death, he could only let the murderer hang him on the rope. In this case, what would the deceased do? Was there no struggle during the hanging process? Are the traces on the neck clear?"

Ma Rongcheng was stunned for a moment, then nodded involuntarily: "That's okay."

"So the murderer deliberately got the deceased drunk and then hung him to death. In that case, we only need to find out who was drinking with the deceased last night!" Jiang Hai, who was in a dark mood, suddenly felt like Dali who had eaten spinach. Sailor, his whole body was suddenly full of strength again.

Chen Chuan, who had itchy hands, wanted to pour another bucket of cold water on Jiang Hai's enthusiasm. Before he raised his hand, Chen Shu glared at him, shrank back, and murmured: "We are all students in the same batch, hang on." fart"

Chen Shu turned to look at Jiang Hai and encouraged with a smile: "It's a good idea. Although as a rule we have to investigate the social activities of the deceased before his death, your idea is quite targeted and worth a try."

Several people started talking about details again.

Zhu Yiba, who was confused by what he heard, raised his elbow and touched Chen Chuan, who was sulking, and whispered: "What are they talking about? I can understand every word, how can I understand it when they are connected together?" Don’t understand.”

Chen Chuan had a straight face and hummed: "Ask me, who am I asking? We who do manual labor can just stand aside and be the decorations. Why do we think so much?"

"Tch, you are the decoration, your whole family is the decoration!"

"Hey, to be honest, no matter what I do, it must be a work of art!"

"."

As long as they didn't listen carefully to the content, it would appear to outsiders that the two men were arguing fiercely about the case.

"The hyoid bone is okay, but the grooves are not crossed. The bleeding corresponds to the position of the groove. Well, judging from the situation, it should have formed at one time. The nails are also quite clean." Old Tang was wearing a pair of big glasses and almost lying on the body. After looking over and over for a long time, under the expectation of everyone, he finally said maturely, "What Lao Ma said makes sense, but I think there is still room for discussion. If you want to get the exact answer, you have to do an autopsy."

Forensic doctor Tang's words attracted everyone's attention. He was still the same, insisting on doing anatomy.

"Wait a minute." As he said that, Old Tang used all his strength to turn the body over, and lay down to watch it for a long time. No one around him dared to disturb him.

In the dim autopsy room, the air conditioner was still humming. Even though the smell of disinfectant permeating the air was very pungent, no one dared to show the slightest hint of impatience.

As the master of the anatomy room, the forensic doctor was wearing a white coat and working with his head down attentively. Although his face looked slightly tired, his eyes under the big glasses shone with a bit of brilliance.

Time passed by, and under the expectation of everyone, Old Tang slowly stood up, scratched his scalp awkwardly, and said, "Sorry, I'll go read the book to confirm."

In full view of everyone, he quickly ran to the office next door. First there was the sound of rummaging through boxes and cabinets. After a moment of silence, there was the sound of "deng deng deng" when the computer was turned on. After a brief pause, the sound of typing on the keyboard followed. sounded.

After about a cigarette, Old Tang came back confidently holding a few newly printed A4 papers, and said plausibly: "The neck of the deceased did not appear purple or bruised, so the possibility of being strangled was not high. ”

Seeing everyone's confused expressions, Old Tang began to explain.

There are differences in the causes of death from strangulation and hanging. The former is mainly caused by suffocation caused by the trachea being blocked by a rope-like object, while the latter accounts for the majority of deaths caused by lack of oxygen in the brain caused by the blockage of blood flow to the brain.

There are two arteries that supply blood to the brain in humans: the carotid artery and the vertebral artery, which are protected by bones next to the spine.

If the neck is strangled, even if the carotid artery is blocked, the vertebral artery protected by the bone cannot be blocked, so blood can still be successfully transported to the brain. The cause of death is reflected in the lack of oxygen.

But hanging is different. First of all, the rope of hanging cannot close the trachea, so you can still breathe. However, the neck was suspended at a certain angle from above, so both the internal and external arteries were blocked at the same time, so the blood supply to the brain stopped instantly, and the cause of death was blood supply.

Therefore, although the blood supply from the vertebral arteries to the brain of a strangled corpse continues, on the contrary, the carotid arteries that carry blood from the brain are blocked, so purple and bruised blood will appear.

As for people who hang themselves due to lack of oxygen, there will be no purple or blood stasis because there is still an artery transfusing blood to the brain.

The studious Jiang Hai didn't shy away from it at all. He followed Old Tang's pattern and put his whole face to the neck of the corpse.

"No bruises, no purple color."

"He hanged himself"

"Suicide."

Jiang Hai sat down on the chair with dull eyes, leaned on the back of the chair, and let out a long sigh.

At this moment, Chen Chuan did not make the same mistake again. He quickly stepped forward and slapped Jiang Hai on the back of his head. He felt a little refreshed and enjoyed the pleasure of this kind of education. However, he said sternly and righteously: "What's your attitude?"

Jiang Hai, whose hope was shattered, retorted: "This is called a serious and rigorous work attitude that does not let a bad guy go!"

"Do you know that if you handle cases according to the murderer's idea, you will sooner or later make a lot of false and wrongful cases!"

"Hehe, the premise of false and wrongful cases is that you have handled cases before, right? Brother Chuan, have you handled cases before?"

"Yo yo, you are still a little kid in school, but you are good at talking back."

"Come on, you look like a senior brother."

Just when Zhu Yiba and Chen Chuan were arguing fiercely and Jiang Hai was sighing in loneliness, Chen Shu knocked the table heavily with his knuckles, as if he had discovered something extraordinary.

Everyone's attention returned to him.

"Expert Ma, I have an idea, I don't know if it's right." Chen Shu pondered for a moment, and said slowly, "If it was suicide by hanging, the mark of the neck touching the rope should have a process from deep to shallow. Think about it, the neck is hung on the rope, and the weight of the whole body is concentrated on the small area of ​​the chin that touches the rope, so the mark must be the deepest in the middle, and then gradually become lighter along both sides, and the length must not be long, about one-third of the circumference of the neck.

"But you see the strangulation marks on the neck of this corpse, which show most of the circle, and the length of the marks is far beyond the normal length of hanging, and the degree is almost the same, as if the whole neck was tightened with a rope. "

Speaking of the latter, Chen Shu spoke faster and faster, and more and more confidently. He gestured with his hands to strangle the neck, and finally quickly closed them like a guillotine, and said decisively: "This kind of mark of consistent depth is more like being strangled by human beings. "