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Having stayed in the department for two full years, everyone has already become accustomed to Ye Qian and I as a living combination. In addition, the case is urgent, so as long as Captain Xu doesn't say anything, we will naturally not care. As Ye Qian's biological uncle, Captain Xu was the one who found Brother Ming and asked Ye Qian to study with him. Seeing that Ye Qian was so successful now, it was too late for him to be happy. How could he say "no"?
While we were talking, all of us had already changed into our survey clothes. According to the order of survey, Fat Lei and I were the first to stand on the outside of the warning circle.
Because A Le once casually said "you need to study more" before arriving, Fat Lei, a straight-faced person, actually took it seriously and even dragged A Le to the first batch of exploration. Ye Qian followed me. After two years of hard work, she also learned a lot about trace inspection, so she took the initiative to "rebel" and join the team with Brother Ming.
The first group - the trace inspection group, was led by me, Pang Lei assisted in taking photos, and A Le took over. The three of us stood at the designated position in order.
? Observed from the outside, the crime scene is a duplex villa with a brick-concrete structure, which is divided into three floors above ground and underground. There is a two-story residential building above ground and a garage on the ground floor.
There is a forest to the south of the villa, and there are community roads in the east, west and north. The villa is divided into a front yard and a backyard with the house as the boundary. The decoration of the front yard is relatively simple. Except for a motor driveway leading to the underground garage, the other places are basically covered by vegetation.
The backyard is relatively more exquisite. In addition to the proper lawn, there are also special leisure chairs and awnings. On a sunny afternoon, sitting here drinking a cup of coffee and looking at the distant scenery is definitely a high-end enjoyment. But unfortunately, the disgusting stench is everywhere in the backyard today.
After completing the outdoor on-site observation, looking at the lawn in the yard where nearly 90% of the area was greened, I had given up the idea of ??extracting footprints. Exploring the suspect's entrance and exit became the focus of my next step.
"The villa has two doors for entry and exit, the front door and the back door. The lock cylinders of both doors are intact and there are no signs of prying. The indoor windows are tightly closed. This is how the suspect opened the door." As I said, I pointed. A circular hole in the glass window of the backyard.
"Been scratched?" Fat Lei narrowed his eyes.
I clenched my fist and reached into the hole. With a "click" sound, I opened the iron door from the inside.
"That's right. The suspect cut the glass from here and opened the door directly with his hands. The security door in the backyard should be the entrance for the suspect to enter the room."
"This hole is quite round! Did you use any special tools?" A Le also quickly entered the state.
"Yes, a special glass cutting tool is used. Generally, there are two most common ones on the market. One is the emery wheel, which is commonly used by doctors. It is mainly used to cut injection needles and oral liquids. bottle tool; the other is the glass knife.¡±
"What kind of tool is that?"
I did not rush to answer, but looked down at the scratched glass edge: "The emery wheel has large sand grains, loose texture, and lacks hardness, so its scratches are wide, and because it is difficult to concentrate the force, the scratches on the glass There will be a lot of glass particles and powder on the edge of the mark, which is why the doctor has to knock it after using the grinding wheel. The glass knife is different. It consists of a handle and a metal head. The top of the metal head is inlaid with a A piece of diamond. The hardness of diamond is very high. As long as you apply a little force, you can cut the glass. Since the handle will cause the force to be concentrated, the scratched edge of the glass knife is relatively smooth. According to this characteristic, the suspect should be using one on the market. A common glass knife.¡±
¡°Aren¡¯t glass knives sold everywhere?¡±
"Yes, so just analyzing this is useless, but the suspect may not have used an ordinary glass knife."
"Oh? How do you say that?"
"Look, the hole in the glass window is very round. Even a skilled worker cannot make it so round just by hand. So I suspect that the suspect used something called a 'round glass knife' .¡±
"A round glass knife?"
"Well! This tool consists of three parts. A metal rod with a scale, connected to a silicone suction cup at the end. There is a metal cutting head on the metal rod that can flexibly move left and right. Just adjust the diameter of the round glass you need. Just have a good scale, fix the suction cup, and make a circle around it. This kind of tool is generally used by manufacturers who produce glass handicrafts."
"Can we use this tool to analyze the suspect's professional characteristics?" Fat Lei asked after adjusting the focus and taking pictures of the round hole.
&The fetus is easily pushed out of the body, which is the so-called "post-mortem delivery". Generally, "post-mortem delivery" occurs in the late stages of corpse decay.
After Brother Ming finished speaking, he started squeezing the head of the baby's corpse with his hands in a fist-like shape: "The skull is nearly fully developed, and the pregnant woman is at least eight months pregnant. After the suspect killed two people, as the corpses decomposed, the fetus was finally After being squeezed out of the body, due to increased decay, a human-shaped balloon formed, and finally the body floated on the water. Then, driven by the current, the body was washed out of the bath, and the edges and corners of the bath pool cut the fetus's umbilical cord, ultimately creating the situation at the scene."
Brother Ming put down the "baby" and continued: "The deceased were a man and a woman. Their skulls were dented and they had been hit by blunt objects. Judging from the concave arc of the wounds, the hitting tools should be the most common ones on the market." Nipple hammer', by the way, Xiaolong, are there any large areas of blood splatter elsewhere in the house?"
"Nothing has been found yet."
"Both the two deceased persons had sharp injuries to their carotid arteries. If the suspect had committed the murder indoors, there would have been a large amount of blood spatter. From this point of view, the suspect should have used a 'teat hammer' to knock them unconscious. , and then committed the murder in the bathtub."
As soon as he finished speaking, a piece of human tissue floating in the bathtub caught Brother Ming's attention: "Could it be"
When he was confused, he opened the mouths of the two corpses one by one.
"A man's tongue was cut out!" I exclaimed.
"Why did the suspect cut off the tongue of the male deceased?" Brother Ming also had some questions.
"Venting out anger?"
"An acquaintance committed the crime?" Ye Qian and I spoke at the same time.
"At present, we cannot rule out the possibility that an acquaintance committed the crime. It seems that we can only wait until the scene is inspected before touching it." After saying that, Brother Ming put the body back into the pool. (Remember the website address: www.hlnovel.com