However, the other party's car still had no intention of stopping, and still rushed over slowly.

So, the man had no choice but to drag his girlfriend and run out of the car. The two of them had just run out not far when they saw two cars crashing together, and the car behind them stopped. Seeing his beloved car, inexplicably hit and deformed, the man was particularly annoyed, he took out a board from the trunk, and rushed to the car, ready to quarrel with the other party.

But at this time, the couple suddenly discovered that there was no driver in the car that was slowly driving over, and it was completely an empty car driven by itself. When the woman saw this scene, she was instantly frightened and screamed, while the man was quite calm and hurriedly checked the surroundings of the car. Sure enough, he found that the car without a driver, the trunk had been warped, showing a kind of weirdness.

Usually, this kind of scene is not good in the movie, so the couple opened the trunk with extra care. A red and white snakeskin pocket appeared in the trunk, and with trembling hands, they unzipped the pocket, only to see a charcoal-like huddled human figure, appearing in front of them.

Then, the frightened little couple immediately called the police. Then, the police brought the snakeskin bag back to the police station and began to analyze it in depth in the autopsy room. Therefore, the object An Zhi and Ning Yi saw was a pitch-black and curled up human form.

At present, the police can deduce that this person, she is Vina, based on the license plate of the car in which the accident occurred, the documents in the car and the mobile phone left in the snakeskin pocket. Because with the naked eye alone, no one can tell that this is a person, or even a woman. The exterior of the corpse had been charred, and the color was extremely deep charcoal black, and the face and limbs were severely burned, and bones were exposed in many places.

Pointing to the huddled corpse, Dr. Zhang said: "This corpse is in the shape of a typical fist, which is a typical sign of a corpse at a fire scene." ”

An Zhi repeated in a low voice: "Fist fighting? ”

The medical examiner's assistant quietly explained: "The fist fighting is a posture that the appearance of a corpse presents when a person is burned or burned. If you think that the human body contains a lot of water and blood, when the hot flame acts on the human body, it will cause the water in the body tissues to be lost, and then the skin, subcutaneous and muscle tissues will harden, and coagulative necrosis will occur. Further, the human body will have the phenomenon of blackening and charring of the epidermis. ”

An Zhi whispered, "As black as the surface of this corpse?" ”

The assistant nodded and said, "Yes, then the human muscle tissue, its strength will shrink." Because the flexor muscles of the limbs are more developed than the extensor muscles, the force of carbonization contraction is relatively greater. Finally, the joints will be flexed, and the legs, elbows, and wrists will curl up together, which looks like a boxing posture, so it is called a fist fight. ”

An Zhi then asked: "Based on the fist-fighting shape of the corpse, can your forensic doctor determine whether she was burned to death before her death or after her death?" ”

At this time, she listened to Ning Yide beside her, and said coldly: "The reason why the corpse appears like a fist is that the muscles of the human body experience contractures after encountering high temperatures. Even if a person dies, the muscles of the corpse will also encounter high temperatures, so this phenomenon cannot be relied on to determine whether she was burned before her death or after death. ”

The assistant also added: "Professor Ning is right, to judge the situation An Zhi said, but also according to the respiratory condition of the deceased, you must rely on forensic autopsy. ”

Forensic doctor Zhang said: "Determine whether before or after death, and the carboxyl hemochromatic content in the blood. In addition to common phenomena such as eyelash signs, goose claw signs, and heat-activated respiratory syndrome, sometimes the body burned to death before death will also see mushroom-like foam, internal bleeding of neck muscles, and glove-like peeling of the skin of the hands and feet. ”

When the little assistant heard this, he immediately became excited, and he said to An Zhi: "There are a lot of professional terms here, you don't understand it, I'll explain it to you." ”

An Zhi was a little confused and said, "Okay, thank you." I only remember seeing that a symptom refers to the characteristics of the thing itself, that is, a certain information that this characteristic can convey, which is generally inferred from the material properties of the thing itself. As for a few other professional terms, I really don't understand! ”

The assistant was very happy with her answer, and he immediately gushed out: "The eyelash sign refers to the fact that the victim tends to reflexively close his eyes due to smoke stimulation in the fire scene. However, when the eyelashes are scorched only at the tips due to the closed eyes, this phenomenon is called eyelash syndrome, and it is also a sign that you have been burned to death before death."

Yasuyuki continued to ask: "What about the goose claw sign?" ”

Without waiting for the little assistant to speak, Ning Yi had to say: "It's a goose claw-shaped change, you think about it." ”

The picture sense of this sentence is too strong, An Zhi's stomach is full of nausea, and Forensic Doctor Zhang said with a smile: "Professor Ning is really concise and to the point, they all say that interlacing is like separating mountains, and when I come to you, I really understand it, and it is not easy for this child to follow you!" ”

When the others heard this, they all laughed, which made An Zhi a little embarrassed, so he could only continue to ask: "Then what is the heat effect respiratory syndrome?" ”

"It is also a special noun, which refers to a series of pathological changes after the flames, scorching air, steam, smoke or other harmful gases in the high-temperature environment of the fire scene enter the respiratory tract and lungs during inhalation, causing damage to the respiratory tract and lungs, including: soot and charcoal deposits can be seen on the surface of the respiratory mucosa, which are mixed with mucus to form black line-like mucus; The mucous membranes such as epiglottis, larynx, trachea, bronchi, etc., are congested and edema, hemorrhage, necrosis, and sometimes blisters can be formed, and in severe cases, diphtheria-like pseudomembranes composed of fibrin, necrotic mucosa, mucus and inflammatory cells dominated by neutrophils can be formed, which is easy to peel off. ”

The little assistant, who had never had a chance to speak this time, hurriedly said: "There is also that mushroom-like foam, which refers to the white foam that overflows around the mouth and nose of the corpse, and the mushroom is a fungus, and this foam is named because it looks like this fungus." The formation mechanism of mushroom foam is the stirring of air and mucus in the trachea, and a large amount of foam will overflow the mouth and nose, and even if it is wiped off, it will form again after a while. Mushroom foam is usually found in cases of drowning, but it can also occur in mechanical asphyxiation and electrocution. ”

Once the investigation of the source of the fire is narrowed down to a small area, investigators can look for various debris left behind as evidence. The charred material on the surface needs to be cleaned up to find natural evidence of the underlying layers. This includes certain catalyst accumulations or cigarette butts that contributed to the spread of the fire.