For other non-professional people, the above explanation is not easy to understand, and there is still a trace of more or less doubt on everyone's face. Therefore, Forensic Doctor Zhang said in a more understandable way: "What Professor Ning said is right, heat respiratory syndrome is a unique symptom of a corpse burned before death. This feature is also the main basis for distinguishing whether the deceased was burned to death before death or after death. ”

Hearing this, everyone's expressions immediately showed a kind of enlightenment. An Zhi, who is a little white, continued to ask: "Forensic Doctor Zhang, what is mushroom-like foam?" ”

This time, the little assistant, who had never had a chance to speak, glanced at the master, and hurriedly said: "That mushroom-like foam refers to the white foam that overflows around the mouth and nose of the corpse." Originally, mushroom refers to a kind of fungus, and it is named because of the shape of this foam, which resembles this kind of fungus. Let me put it this way, mushroom-like foam is formed because the air and mucus in the trachea are stirred, and a large amount of foam overflows the mouth and nose. When this foam is formed, even if someone wipes it off from the mouth and nose, it will still form again after a while. ”

An Zhi really understands the meaning of this kind of term, but there are still people who have doubts about it. A police officer said, "Forensic Doctor Zhang, does this mushroom-like foam generally only appear in cases of drowning, mechanical asphyxiation, and electric shock?" ”

"What you said is just a superficial phenomenon, and to determine that it is a mushroom-like foam, we must understand its causes," said Dr. Zhang. That is, when judging, there are two things to keep in mind. ”

The officer asked, "Oh, what are the two points you are talking about, can you elaborate on them?" ”

After coughing lightly, Dr. Zhang continued: "Mushroom-like foam is also known as crab-like foam, and there are two main conditions for its formation, the first is pulmonary edema caused by various reasons, including diffuse, pressure, etc. The second condition is rapid or heavy breathing. Therefore, in order to judge whether the foam around the mouth and nose cavity is mushroom-like foam, it mainly depends on two points, that is, whether the corpse has pulmonary edema, and the other is whether it has caused aggravated breathing before death. ”

Hearing this, Ning Yide's cold voice sounded: "Forensic Doctor Zhang, do you mean that if the deceased meets these two conditions at the same time, the blender principle will be produced, and eventually the mushroom-like foam will be produced?" ”

Forensic Doctor Zhang nodded and said, "Yes, that's right. ”

An Zhi silently remembered what the forensic doctor had said, and stretched out her head a little unwillingly, and looked at the shocking corpse, she did not find the above symptoms. Therefore, An Zhi asked a little weakly: "Forensic Doctor Zhang, what can the symptoms on this corpse mean?" She looks like a piece of charcoal, you can see her limbs curled up into a ball, I can't see anything except the fist shape, it's so miserable! ”

She remembered that Vena used to be such a radiant beauty. Now it's lying here, and it's such an ugly piece of black coal. An Zhi sighed silently in his heart, people, what a very fragile creature. She really wanted to ask Vena, if she knew that one day, this kind of bad luck would await her, would she still be paranoid about falling in love with Shangguan Xue and wasting her good youth?

Just when An Zhi was thinking wildly, Forensic Doctor Zhang said very seriously: "The thermal effect of the corpse respiratory syndrome needs to be dissected in detail before we can tell what it explains." Come over here and help her! ”

As he spoke, Forensic Doctor Zhang called his little assistant to help, and two large men tried to make the body stretch out its limbs. However, it was evident that the skin and muscles on the surface of the burned corpse had developed severe contractures, and no two men had succeeded in trying all kinds of methods carefully.

In the end, the experienced forensic doctor Zhang showed his housekeeping skills.

He took out a sharp scalpel and separated the contracture muscles little by little along the skin and muscles of the corpse's joints, like the legendary Ku Ding Jieniu. After a while, under his delicate and unremitting efforts, the corpse was in a highly tense muscular state, and finally it was completely released.

Although, this is not the first time that An Zhi has witnessed the dissection of a corpse. However, the impact of the flesh-and-bone picture still caused her a lot of stimulation. She remembered her favorite supper, the sauce-flavored barbecue she often ate, and after those chicken gizzards, pig cartilage and meat tendons, her stomach was filled with irrepressible nausea.

An Zhi almost grabbed the door again, but at this time, a police officer spoke. The question he asked succeeded in diverting her attention, and the nausea was suppressed again.

The officer asked sharply: "Forensic Doctor Zhang, if you cut open the charred corpse with a knife, if the corpse itself is injured, will there be confusion between the two?" ”

Doctor Zhang pushed down his eyes with the back of his hand, his eyes with a mask, revealing a very confident gaze, and said, "Of course not, you can rest assured." The wounds on the corpse, whether inflicted before or after death, are not in the slightest confusion with the wounds I cut open. ”

"Can I ask you why?" The officer asked persistently, and it could be seen that he was also very young, and he should also be a newcomer who had just started and was not very experienced.

As soon as his words fell, before the other experienced veteran police officers could speak, Ning Yide, who knew everything, said: "I guess that the original injuries on the corpse, whether caused before or after death, will be stained with a lot of ashes at the wound because of the burning incident. In this case, the original wound and the new wound will have a different color at the wound site first. Secondly, the thermal effect in incineration will cause a significant change in the skin texture of the wound of the corpse. So, you're confident that they won't be confused, right? ”

Forensic Doctor Zhang nodded, glanced at Ning Yide with appreciation, and then turned his head to his little assistant and said, "Look at Professor Ning's knowledge, you are from a professional background, now let's add other points." I want to see if you really remember what you usually say, but don't let Professor Ning laugh at us for not being good at learning. ”

Ning Yide heard his words and smiled, but it was the little forensic doctor himself, and his expression was obviously nervous. He blinked unconsciously, lowered his head and pondered for a few seconds, then said a little nervously: "Master, I remember you said that if you cut off the muscles before death, the muscles will contract significantly, and the skin of the wound will roll inward. In addition, the skin and fat will be stained with blood, so the color of the wound will be purplish-red. ”

Forensic doctor Zhang said: "Well, that's right, what about the injuries after death? ”

After receiving the master's willingness to move, the little forensic doctor was much more confident, and he immediately replied fluently: "After death, the wound will not be too wide because the muscle contraction of the body is not obvious. In particular, the skin of the wound does not shrink after the formation of mortis. ”