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Hatred is as bitter as honey ¡¤ 3

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    When things were almost busy, it was already dawn, and all of us were taking a nap in the conference room while waiting for Lao Xian¡¯s test results.

    ????????????????????????????????????????????????????????????????? together?

    ¡°Let¡¯s get started.¡± Brother Ming opened his bloodshot eyes and lit a cigarette.

    "The autopsy confirmed the suspect's modus operandi, which is consistent with my analysis at the scene. The time of death can be determined to be around 7:30 that night. There is no other discovery. Jiao Lei, do you have any at your place?" Brother Ming said concisely.  He stated the conclusion of his field and then asked Pang Lei the question.

    "I have backed up all the surveillance in the community, and there is no directional conclusion now. The line of sight is not clear at night, so I have no clue at the moment." The processing of surveillance videos will be a key task that will only be carried out in the later stage after the suspects gradually become clear.  Nothing is normal.

    "Xiaolong, what do you say next?"

    "Okay." I put the extinguished cigarette butt in the ashtray and said, "There are no signs of prying on the door lock core at the scene. Based on the evidence currently available, the possibility of entering the room through the window is completely ruled out. So, then  The suspect can only enter the scene through the door. There are three ways to enter through the door: calling the door, following him in, and opening the door with a key."

    "The investigation extracted a total of two types of traces: shoe prints and fingerprints. Let me talk about the first type first: shoe prints. There were no traces of cleaning or cleaning at the scene. After excluding the known shoe prints, there was only one kind of shoe print left on the scene.  , are the slipper prints at the deceased¡¯s home. In other words, the suspect entered the room and changed into a pair of slippers. The slippers on the shoe rack at the door were divided into men¡¯s and women¡¯s styles, and the shoe prints left at the scene were women¡¯s shoe prints.¡±

    "Is the suspect a woman?" Ye Qian asked.

    "Not necessarily, because the size of women's slippers indoors is size 39. It is possible that the suspect did not pay attention after entering the door and just wore a pair casually. So based on this alone, we cannot analyze the gender of the suspect."

    Seeing that there was something wrong in my words, Ye Qian stuck out her tongue at me with some embarrassment and said, "Then go ahead and I'll just ask a casual question."

    I continued: "With the suspected target identified, I extracted a large number of shoe prints at the scene. After data analysis, I found that the stride length of these shoe prints was shorter, the step width was wider, and the step angle was smaller.  It is a typical female shoe print, and coupled with some measurement data, I can basically determine that the suspect is a female."

    "Is it really a woman?" Ye Qian said in surprise.

    "According to my analysis, it should be correct. The sole pattern of the indoor slippers has no deformation, indicating that the suspect's soles are evenly stressed when wearing shoes. From this, it can be analyzed that her foot size is around 39. The pressure on the front of the shoe print  The facial pattern is clear and the feet are strong. According to the analysis, she should be a young woman. Her height can be determined to be around 1.7 meters, and her physical fitness is very good."

    I took a sip of water and moistened my throat: "Speaking of which, the first problem I need to solve is the way the suspect entered the door. As I said just now, the suspect enters the room through the door. He may use shouting, following, or  There are three ways to open the door with a key. The two ways of calling the door and following are that the deceased opens the door by himself and the suspect enters directly. If this is the case, after the two people enter the door, there will be two overlapping women's shoe prints on the ground, but at the scene  Without this feature, the first two situations can basically be ruled out. I prefer the last one, which is to use the key to open the door."

    ¡°As for the shoe prints, my conclusion is that the suspect opened the door with a key and entered the room, walked to the bedroom of the deceased and strangled Zhou Bilian to death while she was sleeping.¡± After that, I looked at Brother Ming to ask for his opinion.

    ¡°Based on the autopsy, Xiaolong¡¯s inference seems to be basically reasonable at present.¡± Brother Ming did not deny my conclusion.

    I cleared my throat and continued: "The second type of trace is fingerprints."

    "What? The suspect didn't wear gloves when committing the crime?" Ye Qian was a little surprised.

    "Not wearing it."

    "Very good."

    "But you were happy too early." As soon as Ye Qian cheered, I poured a basin of cold water over her.

    "You didn't pick out the fingerprint lines without wearing gloves?" Ye Qian was a little surprised. After all, extracting fingerprints is the most basic job for any trace inspector.

    ¡°Congratulations, you¡¯re all ready to answer.¡± I shook my head helplessly.

    "Xiaolong, what's going on?" Pang Lei asked.

    "The fingerprints I extracted at the scene were very strange. Judging from the pattern of the impressions, they were clearly female fingerprints, but there were no line features on the belly of the finger at all. The suspect should have been on the finger."?Some kind of 'camouflage' was used to cover the fingerprint lines.  "

    "Let me answer this question for you." Lao Xian spoke at this time.

    "Huh? Brother Xian, have you discovered anything?"

    "Yes." Lao Xian nodded, "I found some irregular crystal residues on the indoor furniture, including acetone, ethyl acetate, phthalates, formaldehyde and other ingredients. Through the chemical composition map  By comparison, it can be concluded that this crystal should be the hardened product of ordinary nail polish."

    "That is to say, the suspect applied nail polish on his fingertips?" Ye Qian opened her mouth and asked.

    "According to the fingerprints left at the scene, the analysis should be."

    I didn¡¯t think about this before, but I suddenly realized it after receiving Lao Xian¡¯s test results.  This method of camouflaging with nail polish often appears in some mystery novels or film and television dramas, and many people talk about it, saying that it is a perfect way to cover up fingerprints.  As everyone knows, "touch leaves traces", as long as contact is made, traces will be left.  Solving a crime is never a matter of one person, but the result of the joint efforts of multiple disciplines. If you cover the fingerprints, you will leave behind physical and chemical evidence. If you follow the clues, the suspect will definitely have nowhere to hide.  (Remember the website address: www.hlnovel.com
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