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The investigation work was busy from the morning glow on the face to the afterglow in the sky. When we all gathered around the conference table, we could still vaguely smell the smell of corpses.
"I basically don't have any directional conclusions here. All the human tissues of the deceased are there, and this is the scene where the body was dumped. Jiao Lei, is there anything going on there?" Brother Ming started.
"Not yet, I will add something when Brother Xian tells me."
"Xiaolong, tell me." Brother Ming threw a cigarette, I took it with both hands and put it aside: "The suspect was able to dump the body on foot. At first I thought he should live not far from the scene of dumping the body, but then I Searching along the shoe prints with Ye Qian, we discovered that he had walked nearly four kilometers carrying the corpse, and the shoe prints finally disappeared on the road at the southernmost end of the village."
"Four kilometers?" Fat Lei exclaimed.
"Four kilometers is just the minimum."
"This physical strength is really amazing."
Brother Ming said: "After measurement, the total weight of the corpse is about 74 kilograms. He can carry it so far not only because of his physical strength, but also because carrying a shoulder pole is also a technical job. He can't carry it for long with brute force. According to my guess , the suspect is most likely someone who has been carrying a pole for many years to earn a living."
I was a bit embarrassed and said: "The shoe prints at the scene cover such a wide range, even if we know what the suspect does, what can we do? There is no starting point at all."
Ye Qian listened to what I said and nodded in response: "The suspect's route involved nearly ten natural villages. The population density in the villages is too high. It's basically like finding a needle in a haystack."
Brother Ming rubbed his temples tiredly: "Guoxian, tell me."
Lao Xian opened the report and replied: "I extracted a large amount of sodium chloride, which is table salt, from the wound of the corpse, indicating that the kitchen knife used by the suspect to dismember the body may be one he often uses."
"That is to say, besides the kitchen knife that he usually uses for cooking, the suspect does not have any more suitable tools for dismembering the body. From this point alone, the suspect's motive for committing the crime can be analyzed." Brother Ming began to analyze one by one, "The fatality of the deceased The injury was a blunt force injury to the back of the brain. This type of wound was caused by the suspect standing behind the deceased and hitting him multiple times with a round hammer. After he knew that he had killed someone, he may have thought of separating the body for the convenience of moving it. Guoxian's examination results showed that he did not prepare tools for dismembering the body in advance, but just picked up the kitchen knife he usually used. Based on this analysis, the suspect is likely to kill in anger and then dismember the body."
We all nodded in unison.
"The suspect and the deceased must have been in the same room at the time of the crime. Being together shows that the two people knew each other. However, the suspect did not damage the face of the deceased after dismembering the body, indicating that the relationship between the two was very hidden and unknown. , the suspect is not worried that we can find him. Anything that fits this situation will be the focus of our next step."
"Guoxian, please continue to introduce."
Lao Xian stood up and turned on the projector. A piece of hairy stuff appeared on the projection cloth: "We only noticed the body parts at the scene. No one noticed that there was this piece next to the body parts."
"This is?" I asked looking at the pizza-shaped thing.
"Nang." For Fat Lei, who is known as the "Eating God", this is not a problem at all.
"To be precise, this is a piece of naan covered with mold." Lao Xian opened the report and continued, "This piece of naan was packed in a plastic bag and pressed inside the body. Due to time and temperature, this piece of naan has been It's covered with mold, and when you look at it under a microscope, it's Aspergillus growing on the naan."
"Aspergillus?" This term is unfamiliar to all of us.
Lao Xian put down the report and popularized science: "There are two common molds in our lives: Penicillium and Aspergillus. Penicillium is often distributed on moldy fruits, vegetables, grain, leather and other objects, and the bacteria have erect hyphae. There is a broom-like structure on the top, and each branch of the structure has clusters of spores. The mature spores are green and carry out spore reproduction. Aspergillus is widely distributed in grains, air and soil, and the top of the upright hyphae of Aspergillus expands into Spherical, with clusters of spores radiating on the surface of the spherical structure, the spores are yellow, orange or black depending on the species of Aspergillus.¡±
"Does this have anything to do with the case?"
Lao Xian then explained: "I just mentioned a term: spore. It is the main reproductive organ of mold. It is divided into two categories: sexual spores and asexual spores. The former is formed through the fusion of two cells and genome exchange, and the latter has no At this stage, it is formed through hyphae division, etc. The spores germinate under suitable conditions, form hyphae, and divide and reproduce; they can remain dormant when the external environment is not suitable.The growth of silk has a great relationship with moisture, temperature and growth substrate. Based on the recent climate conditions at the crime scene, I analyzed that this piece of naan had been placed here for at least three or four days. "
"Does it coincide with the time of dumping the body?"
"Yes, this piece of naan should have been thrown here by the suspect along with the body parts." Lao Xian gave the final conclusion.
I stared at the big screen while listening: "Brother Xian, there are no teeth bite marks on this piece of naan, which means the suspect has not eaten it. Could it be that the suspect's DNA is left on it?"
Lao Xian shook his head: "There is no suspect's DNA on the naan."
"How does this help the case?"
"Let me explain this." Fat Lei continued, "Actually, this should belong to your traceology knowledge." Fat Lei raised his eyebrows at me and said: "Naan is a traditional delicacy of ethnic minorities in Xinjiang. To put it bluntly, it is a The bread baked in a naan pit is somewhat similar to the sesame biscuits we usually eat, but the naan also has its own characteristics."
¡°Is it round and big, and covered with vegetable fillings, it¡¯s like a pizza?¡± I remembered a jingle Pang Lei said when he took me to buy naan for the first time.
Ye Qian burst into laughter.
"You kid, you don't learn well, I'm talking about business."
"Xiaolong." Brother Ming knocked on the table at me.
I stuck out my tongue and said nothing.
Fat Lei sat upright: "Where did I say it?"
"Characteristics of Nang."
"Yes, the characteristic." Pang Lei slapped his head comically, "In order to make this naan look beautiful, a concentric 'naan flower' similar to a concentric circle is often added to the center of the nang."
When I heard the word "Nanghua", my expression suddenly became serious.
Fat Lei continued: "There are special tools for rubbing 'Nang flowers'. This tool is very common in Xinjiang. It is similar to inserting a circle of iron nails around a toothpick can. This special tool will make the 'Nang flowers' neatly." , good-looking, and will not deform during the baking process. Now let¡¯s take a look at the piece of naan left by the suspect at the scene.¡± Fat Lei gradually enlarged the photo on the screen, and the shape of the naan flower gradually became clearer.
¡°Why are the naan flower holes on it so irregular?¡± I asked.
"I have studied this issue before when I was eating naan." Seeing that I had asked the key point, Fat Lei released the mouse click on the picture, "This kind of irregular naan flower shows that the boss who sells naan uses traditional craftsmanship. , he made the tools for rubbing the nang flowers himself.¡±
"self-made?"
"Yes, naan has been eaten in Xinjiang for many years. Before the emergence of standard rubbing tools, people usually made them by themselves. The handmade rubbing tools are tied into circles with chicken feather roots, because chicken feathers can be thick or thin, straight or crooked. During bundling, there will be differences in the spacing between chicken feather roots and the deviation of individual chicken feather roots from the pattern trajectory. The selection of chicken feather roots is random, so that each 'Nanghua' has its own characteristics."
"This means that the naan made by traditional crafts is as identifiable as a fingerprint. As long as we look for it from house to house with a photo of the naan, we can find the place where the suspect bought the naan!" I have already Completely understand.
"The enemy!"
"There are very few places selling naan in Yunxi City, so checking them is almost stress-free." Ye Qian said confidently.
"Is there anything else?" Brother Ming asked after finishing recording.
Lao Xian took out the last two reports: "The deceased's teeth had a high tar content, indicating that she had a long history of smoking. In addition, I detected mixed DNA in the deceased's lower body. She had been with three men before she was killed. Had sex.¡±
"What? Three men?" This result surprised Brother Ming.
"right."
"Based on the deceased's dress, living habits, and Brother Xian's test results, could her identity be"
"A woman who has lost her footing?" Fat Lei answered quickly.
"This possibility cannot be ruled out." As soon as Brother Ming finished speaking, Lao Xian handed over an A4 paper with personal information written on it.
"this is¡¡?"
"The identity information of one of the people who had sexual relations with the deceased before the incident. He had been dealt with before for getting into a fight. He has a file set up in the Public Security Bureau. It is estimated that asking him can find out some information about the deceased."
"Liu Chuanlong, male, 41 years old, unemployed. Address: No. 225, Yuannan Xiao Street, Yunxi City." Ye Qian took the A4 paper and started recording.
"Next, two clues need to be verified by the criminal police team. One is where the suspect bought naan, and the other is to find this person named Liu Chuanlong. If there is any news, notify me immediately."
"Okay, Director Leng." (Remember the website address: www.hlnovel.com). "(Remember the website address: www.hlnovel.com - Didn't finish reading? Add this book to your favoritesI'm a member and bookmarked this chapterCopy the address of this book and recommend it to your friends for pointsChapter error? Click here to report
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