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Fengchen Puppet ¡¤ 3

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    "Xiaolong, take it." Brother Ming handed his palm to me, "You should be able to get some information about the victim from this." Brother Ming, who has always been rigorous, did not use the word "dead person."

    "If it's a case of dismemberment, there will probably be human tissue around here. I'll take Guoxian and Jiao Lei to search further down. Xiaolong and Ale, you two, go up first."

    The rocks on the hillside are very loose, and multiple people investigating will cause great damage to the scene, so I did not refuse, carefully put my palms into the evidence box, and then turned back to the road with A Le.

    After taking a breath, A Le seemed to be very interested in this palm:

    "Xiaolong, what do you think you can see with just one palm like this?"

    I lay down on the guardrail and took a look at Brother Ming and the others who had disappeared from my sight. I guessed that they would not come up for a while, so I leaned against the guardrail to rest and explained: "Male right hand, 55 years old  Left and right, he has been engaged in manual labor for a long time. If this is a corpse dismemberment case, the suspect vented his anger during the dismemberment process, but this has yet to be verified; from the side section of the metacarpal bone, the suspect used the dismemberment tool should be  It¡¯s an axe.¡±

    Ah Le remained silent after hearing this, which I expected.  If this situation had been Ye Qian, she would have followed me around and asked endless questions; but A Le is different, he always has a skeptical attitude towards everything, he will not be like  Ye Qian takes the initiative to ask you to explain, but if you don't give him an answer that convinces him, he will always have an attitude of "I don't believe it" towards you.

    In order to prove that the conclusion is not groundless, I continued to explain: "Men have large palms and thick and short finger bones, while women are just the opposite, so it is easy to judge the gender from the palms, and it is more intuitive for the left and right hands."

    Then I brought A Le's attention to the center of the palm: "Calloses, commonly known as 'calluses', are local flat keratin hyperplasia on the skin of the hands and feet caused by long-term pressure and friction on the skin.  There are a lot of calluses on the root area of ??the fingers, a characteristic that only occurs when people are engaged in manual labor for a long time.¡±

    "These are all easy to understand. How can you judge the age of the deceased and the suspect's state of mind when committing the crime with just a palm?"

    "To determine age, we need to look at the back of the hand."

    "The back of your hand?"

    "Yes, we have a big branch in trace science called dermatoglyphics. To judge age, we only need to observe the wrinkles on the back of our fingers."

    Ah Le is like a student who is paying attention in class, waiting to receive all the information I deliver.

    "Wrinkles are actually small grooves that are gradually formed due to long-term loosening of the skin and repeated wrinkles. Some of them can appear during the fetal period, and some occur after birth. They will gradually become more numerous and longer with age.  . Once wrinkles occur, it is difficult to disappear on their own; according to statistics, among our fingers, the functions of the thumb and index finger account for 80% of the entire hand function, and the function of the middle finger accounts for 15%. Although the function of the middle finger accounts for not a very high proportion,  The middle finger has the greatest mobility and activity among the five fingers, so the wrinkles that appear on the middle finger have a certain degree of stability and representativeness. The study of middle finger wrinkles in traceology is divided into three aspects, namely, middle finger coarse lines, middle finger wrinkles, and middle finger wrinkles.  The spacing between fine lines and coarse lines on the middle finger.

    "The appearance of skin wrinkles is not only related to the amount of activity. The hormone levels in the body are also an important determinant of wrinkle distribution. As we humans age, the hormone levels in the body will change accordingly. For example, men develop Adam's apple.  , a woman¡¯s monthly menstrual period is closely related to the hormones in her body.

    "According to traceology research, it is found that after puberty, skin elasticity begins to decrease and the skin becomes loose. At this time, the distance between the lines on the back of the fingers also gradually widens. In particular, the distance between the thick lines on the middle finger increases most regularly, showing as follows:  Between the ages of 21 and 70, the average width increases by 0.1 mm for every 1 year of growth. Based on this, I inferred that the victim was about 55 years old."

    "That's it."

    I turned around and glanced at the hillside, but there was still no movement, so I continued: "If this is a case of murder and corpse dismemberment, let's analyze the suspect's state of mind when he dismembered the body. I have been exposed to two corpse dismemberment cases before.  And during this period, I also reviewed a large number of typical cases about corpse dismemberment cases. Generally, depending on the suspect's different tools for dismembering the body, the shape of the body parts after they were dismembered is very different."

    ¡°Our most common dismemberment tools include knives, axes, hacksaws, knife saws, and electric saws.

    "The dismemberment of corpses with knives all requires brute force, so it is more common to choose joints to dismember the corpse. The body parts are larger and mostlyFunctional dissociation of the body, such as cutting off an entire arm or leg at a time.

    ¡°An ax also relies on brute force to dismember a body, but because the ax has a strong cutting ability, the physical effort required to dismember the body is less than that of a knife. The suspect¡¯s dismembered body is smaller and easier to hold.

    ¡°Hacksaws, knife saws, and electric saws rely on the friction between the saw surface and the corpse to dismember the body, which consumes a lot of physical strength. Therefore, suspects who use such tools often choose joints to dismember the corpse.

    "But no matter which method is used to dismember the body, few people separate the palms and arms alone. I can completely understand that this is an additional behavior of the suspect, and it will only be obvious when driven by the motive for committing the crime.  In other words, the victim's hand may have angered the suspect, so he took extra steps when dismembering the body. However, there is no other evidence to confirm this. It is just my guess at the moment.  .¡±

    After finishing speaking in one breath, my throat was already a little dry, but I still continued to explain: "The last one is the suspect's dismemberment tool. I infer that it is an axe."

    As I said that, I took out the palm that was in the evidence box and said, "Look at the bone section." Ale's attention quickly focused on the whitish oval bone surface.

    "Axe dismemberment uses the principle of leverage and the principle of 'impulse equals change in momentum'. The ax head is divided into two parts, the ax blade and the ax handle. The ax blade is made of metal, and the ax handle is generally made of wood. The shape of the blade  It is generally arc-shaped, but also linear. When a mark is formed, the bone fracture line is extended at the wound corner. When cutting vertically, the fracture extension lines of the wound corners at both ends are consistent with the long axis of the wound. The bottom of the wound can reflect the gap in the blade of the chopper.  As well as features such as curled blades. When cutting obliquely, the fracture line of the wound is extended in the direction of the cutting, causing the side bone plate to tilt outward in the opposite direction, leaving a gap in the edge of the wound wall to cause scratch lines. There will also be scratches near the wound.  There are many small bone fragments. There may be traces of tool separation or residue on the wound wall."

    Faced with the professional knowledge, Ale didn¡¯t seem to understand. I pointed to the round bone surface and explained as plainly as possible: ¡°What you see is the place where the palm was cut off, which is what I just said.  There is a small amount of minced meat attached to the wound wall, which is the remnant; look at the lower end, which is the bottom of the wound, with obvious characteristics of curling blades; here is the wound, with more bone fragments, combined with these three  Basically, the tool used by the suspect is an axe."

    "Does that mean this is really a murder case?"

    "We can't be so arbitrary. We only found one palm at the scene. If someone really had a fight on the mountain, and one of the palms of one of them was cut off and thrown off the cliff, it seems to be explained."

    "I have the best say in cutting people. If the suspect used a knife to cut off the victim's palm during the fight, it is absolutely possible, but with an axe, the possibility is zero. Although the ax has a strong cutting ability, the axe  The force-bearing surface of the blade is too narrow. It is not very difficult to cut off someone's hand at once. Moreover, the ax is not easy to carry. According to my experience in cutting people in the past, no one will choose an ax unless it is absolutely necessary.  ." "Kicking people" is a common occurrence for Ah Le, who has been an undercover agent, so his words are impeccable from both a scientific and technical level.

    "Is it really a murder?" As I was thinking about it, there was a harsh sound of "creak, creak" soles crushing rocks outside the highway guardrail.

    "Someone is coming up." A Le was the first to run over and grab one of the ropes that swayed a lot.

    "Ouch, ouch, you're exhausted, fat man." Fat Lei took a break and used his strength to pull on the rope and climb up.

    "Brother Lei, what's going on below?"

    The scorching sunlight made it impossible for Fat Lei to open his eyes. The double pressure caused by physical exhaustion and visual dizziness made him miserable. He held the rope with one hand and patted his chest with the other. After resting for a long time, he cursed:  ¡°Grandma has legs, and there¡¯s another leg underneath!¡± (Remember this site¡¯s website address: www.hlnovel.com
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