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Dark Well Undead ¡¤ Forty-seven

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    ¡°The suspect is a corpse cut up using an electric cutting machine.¡±

    "Huh? How did you see it?" Brother Ming stopped what he was doing.

    "Do you remember the highway corpse case we investigated last year?"

    "Well, I just came here at that time." Ye Qian replied.

    "After that case, I specifically looked through the information in this area." As I said this, I picked up a few leg bones, placed the sections in parallel on the dissecting table, and explained, "In our traceology, there are  A special topic to study the traces of bone objects. We all know that bone contains water, organic matter (bone glue) and inorganic salts. Inorganic salts determine the hardness of bones, while organic matter determines the elasticity and toughness of bones. We know  These physical characteristics of the bones can be used to further analyze what kind of tools were used to create some of the marks on the bone sections."

    As I said that, I squatted down, pointed at the four leg bone sections I had just taken out from the four corpses, and said, "According to trace science research, in cases of dismemberment, suspects generally use five tools:  Kitchen knives, axes, hacksaws, knife saws, and electric saws. I won¡¯t go into details about the traces formed by the first four tools here. I want to focus on electric saws. The traces formed by electric saws dismembering corpses have one of the most obvious characteristics, namely, two  There are black friction burn marks on the end, and when sawing a fresh corpse, it will be accompanied by the smell of burnt protein. Because the electric saw rotates at a high speed, the friction with human tissue generates heat during the rotation, resulting in black burn marks."

    "Is this black thing on the bone section a burn mark?" Ye Qian has already understood the true meaning of what I said.

    "Yes, this is the best evidence that the suspect used a chainsaw to dismember the body."

    "Does this suspect also have that big electric cutting tool at home?" Ye Qian gestured with her hands. I knew she was talking about the suspect's dismemberment tool in the previous case of dismemberment.

    "The cutting tool used by this suspect is not that big. The larger the cutting tool, the faster the cutting speed, the shorter the time it is in contact with the bone, so the burn marks on the bone will not be obvious. Let's take a look  Looking at this case, every bone has severe burn marks on the top, bottom, left and right sides.¡±

    "Yes! How could this happen?" Ye Qian followed my prompts and discovered this feature.

    "This situation will only occur if the suspect cuts multiple times. This shows that the cutting surface used by the suspect is not very large, and the cutting speed is also very slow, so the cutting blade is in contact with the bone for a long time, causing  There were severe burn marks. Based on the characteristics of the marks, he should have used a hand-held cutting tool."

    ¡°A handheld cutting tool?¡±

    "Yes, this tool is very commonly used and can cut ceramic tiles, wooden floors, etc., so there is no way to determine more detailed occupational characteristics."

    "I've been talking for a long time but I haven't said anything yet!" Ye Qian stood up with some disappointment.

    "However, people who don't need this kind of cutting machine will not buy it. Your criminal police team can pay attention to this aspect in the later investigation and interview." I stated the main purpose of my reasoning.

    "Yes, I took note of it!" Ye Qian nodded and replied.

    "Xiaolong, what else did you find there?" Brother Ming asked.

    "There are only so many for now."

    "Okay, let's piece the bones together first. Guoxian, take samples from these four corpses and hurry up and go back for testing." Brother Ming ordered.

    Lao Xian skillfully took out a bundle of tools for sampling bones from his toolbox and started to work.

    The splicing of this case is not as simple as the Bones case a month ago.  Except for the corpse that still contained human tissue, which was slightly easier to handle, the other three bones were completely mixed together. People who didn't know how to do it couldn't tell where they were.

    Of course, these are not difficult for Ming Ge, who has been immersed in forensic medicine for a long time.  Four hours later, four complete corpses were neatly placed on the ground. Pang Lei took a SLR camera to record their complete features 360 degrees without blind spots.

    "Are they all women?" Since I had heard Brother Ming introduce his professional knowledge in this area before, I glanced at their pelvic bones and said.

    "Well, the age group is between 20 and 25 years old." Ming Ge nodded and said.

    "What other information was discovered?"

    "The environment at the scene where the bodies were found is very special. According to the investigation, the manhole may have been closed due to lack of oxygen for a long time. In this case, the bodies decomposed very slowly, so I cannot speculate on their specific time of death like the previous case. Just  At present, it seems that we can only try our best to find out the source of the corpse first. If the source of the corpse cannot be found,Clearly, there are currently no good clues in this case.  "I have never seen Brother Ming look so ugly. You can imagine how difficult it is to investigate this case.

    To put it simply, we don¡¯t even know who died, so how can we figure out who killed them and why?

    "Don't be too frustrated, it all depends on the human condition. As long as we are serious and meticulous enough, it is impossible not to find clues to solve the case." Brother Ming said to cheer us up.

    "Um!"

    "Let's go back to the unit first and see what progress there is with Guoxian." Brother Ming is ready to move the battlefield.  (Remember the website address: www.hlnovel.com
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