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Two hours later, the evidence was brought back to the technical room and the body was sent to the autopsy room of the funeral home. As soon as we arrived at the unit, we started working separately. Brother Ming and Pang Lei were responsible for the dissection, Lao Xian opened the door of the physical and chemical laboratory with the test materials, and I was in the trace laboratory, preparing to conduct detailed analysis of the footprints and fingerprints extracted at the scene. Ye Qian and her colleagues from the criminal police team are responsible for guarding the two most important persons involved in this case - the nanny Wu Cuimiao and the deceased's husband Liu Jianliang.
The processing of physical evidence can be described as exciting, because any detail can lead to huge changes in the direction of the investigation. Take Ming Ge for example. He can infer from a pair of pants that an acquaintance committed the crime. If he fails to notice this detail, it is likely to lead to a deviation in the direction of the investigation, delay the time to solve the case, and may even cause the case to fail to be solved. dilemma. This was the first time I had to deal with traces alone in the laboratory after studying, so I was extra careful and cautious.
Four hours later, a few of us sat in the conference room to discuss the handling of trace evidence. Of course, Ye Qian was definitely involved, while the investigators from the Criminal Police Team were waiting outside in a polite manner. These are the rules set by Brother Ming himself. Because the main job of our technical room is to process the physical evidence at the crime scene. Only when all the physical evidence is strung together into a chain of evidence can we guide the solution of the case. Therefore, meetings between technical staff are extremely professional. If there are more people involved, It is inevitable that there will be a lot of questions, so in order to save time in handling the case as much as possible, Brother Ming stipulated that other investigators from the Criminal Police Team are not allowed to participate in this kind of meeting. We will discuss the results and they can investigate according to the clues. .
At this time, Brother Ming was sitting on the main seat in the conference room. Fat Lei and I were sitting on Brother Ming's left hand side. Ye Qian and Lao Xian were sitting on Brother Ming's right hand side.
After Brother Ming looked around for a week, he opened his notebook and set his eyes on me: "Xiaolong will talk about this case first."
Hearing him call my name, I was a little surprised, because according to the previous procedures, Brother Ming was the first to speak, but I didn't expect that it was me who spoke first this time. I glanced at Brother Ming flattered, opened my black notebook, stared at the black pen handwriting, cleared my throat and said: "I extracted two types of traces at the scene, the first type: fingerprints; the second type : Footprints.¡±
"Let me start with the fingerprints. I extracted a total of three fingerprints from the door at the scene, the surface of the furniture that was disturbed in the room, and the objects that the suspect may have come into contact with. After comparison, one of them was the deceased's. One is the nanny Wu Cuimiao, and the other is the deceased¡¯s husband Liu Jianliang. Apart from these three fingerprints, there is no fourth fingerprint at the scene. From this, I can judge that the suspect is either wearing gloves, then it is the nanny and the deceased¡¯s husband. One of two people.¡±
After finishing speaking, I picked up the tea cup and took a sip of water and continued: "Now that I have finished talking about fingerprints, I will continue to talk about footprints. The whole scene is very strange. There is only one kind of shoe print, which is the print of the slipper in the deceased's home. I observed at the scene and found that the deceased The slippers used at home are one-size-fits-all sandals, so the size and style of the shoes are the same. From this, it is not difficult for us to see that the suspect changed his slippers when he entered the room to commit the crime."
"We assumed two situations where the suspect entered the room at the scene. Because there were no signs of being broken into on the door at the crime scene, the reporter Wu Cuimiao was also very sure that she locked the door from the outside when she left home. So the suspect either had a key to open the door himself, or the deceased opened the door for him.¡±
"Let's talk about the first way to open the door first - opening the door with a key. Let's not worry about where the suspect got the key from. After opening the door, he will subconsciously take off his shoes and change into slippers. This shows that he has no idea about the crime. The scene was quite familiar, and it was certainly not his first time here. His subconscious action of changing his slippers had already formed a mindset. As soon as he came into contact with this environment, he thought about changing his shoes. For example, if I return When I arrive at my own home, the first thing I do is definitely find my own slippers, but if I go to an unfamiliar environment, I may not necessarily have such a subconscious action. The first situation shows that the suspect is familiar with the place where the deceased lives. .¡±
"Another situation is that the deceased opened the door for the suspect himself. We also saw that the pajamas worn by the deceased were so thin that the underwear underneath could be vaguely seen from the outside. If the deceased is not familiar with the suspect, open the door. I definitely wouldn¡¯t dress so casually.¡±
Brother Ming nodded at me while listening.
I took out a pack of cigarettes from my pocket and distributed them, then lit them and continued: "In addition, I also noticed a detail. Did you notice that the deceased was lying on the sofa without wearing shoes?" When I asked, everyone Everyone frowned and recalled carefully.
"Yes, I'm not wearing anythingshoe. "Pang Lei took out his camera and took out photos of the corpses at the scene.
¡°Brother Lei, look for the photos of the bedroom where the pajamas were found.¡± I tilted my head and glanced at the camera and said.
Fat Lei nodded, and then quickly pressed the button on the camera. I squinted at it and said, "Stop, this is it."
"Enlarge the area on the ground next to the bed." I said from the side.
"Slippers? There are slippers by the bed!" Pang Lei said and handed the camera to Brother Ming. After reading it, Brother Ming passed it to Lao Xian and Ye Qian.
I watched the camera return to Fat Lei's hand again, and continued: "The suspect only took the body out of the bedroom, but forgot the deceased's shoes on the ground. This is enough to prove that the deceased was killed in the bedroom. . The deceased was wearing pajamas in the bedroom, so he should be sleeping on the bed. So my conclusion is basically similar to Brother Ming¡¯s: the relationship between the suspect and the deceased was not an ordinary friendship, but a very familiar relationship. The cabinet at the crime scene was rummaged through. No matter what, the broken vase is just a way for the suspect to fake the scene. That¡¯s all I have to say.¡±
Brother Ming did not speak after hearing this, but stared at me blankly for a minute. I could see the surprise in his eyes. Obviously, my analysis had exceeded his expectations. When the cigarette in his hand almost burned his fingers, he came back to his senses.
Brother Ming put the cigarette butt in his hand into the ashtray, looked directly at me, raised the corner of his mouth and slapped his palm three times at me.
"Awesome! When did you have such a smart mind!" Fat Lei slapped me on the shoulder and said with a smile.
Lao Xian pushed up his glasses and gave me a thumbs up. Ye Qian looked at me with an incredulous look. She must be wondering in her heart, how could I become so good now when I was a rookie a month ago?
I have been working in the department for one year, three months and fifteen days. For the first time, I have enjoyed the joy of being recognized. To be honest, it feels really good!
Brother Ming took out an unopened pack of soft Chinese from his jacket pocket, quickly opened it, and threw the first cigarette to me. Then with a smile on his lips, he lit it comfortably, took a deep puff and said, "Xiaolong Now that I¡¯m done, let me tell you.¡±
I straightened my sitting posture, picked up the pen and prepared to record.
Seeing that everyone was ready, he said: "After the autopsy, it was found that the deceased died of mechanical asphyxiation. Together with the on-site analysis, it can basically be determined that he was strangled to death. After Guoxian's examination of the stomach contents of the deceased Analysis revealed that there was no poison in the deceased¡¯s stomach.¡±
"She had just eaten lunch before she died. Based on the analysis of the remaining amount of food in her stomach and the body spots on the body, the specific time of death of the deceased should be around 1:30 pm. This is roughly the situation here. Xian, please tell me about your inspection status."
Lao Xian took out a DNA report and placed it on the conference table. He pushed up his glasses and said, "No human biological tissue was found between the nails of the deceased. Come and analyze it. Why does this happen?"
With Lao Xian's question, we fell into thinking again. Just a few dozen seconds later, Brother Ming said: "Even if the deceased was strangled to death in his sleep, it is impossible not to resist, because this It was an instinctive reaction. No human tissue was found between the deceased's fingernails, which shows that the deceased did not come into contact with the suspect's skin."
"It's hot weather now. If the suspect is wearing a T-shirt, the deceased cannot come into contact with the suspect's skin. So from this point of view, I can analyze that the suspect is likely to be wearing a long-sleeved shirt, and he is probably still wearing it." Wear gloves."
"On such a hot day, there must not be many people wearing long-sleeved shirts. We just need to see if there are surveillance equipment around the crime scene and find all the people who wore long-sleeved shirts during the time of the crime. The suspect must be there. Inside." Ye Qian said excitedly, slapping her hands on the table. (Remember the website address: www.hlnovel.com