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The Pledge of Love ¡¤ 2

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    You can search for "Nine Drops of Water¡¤Corpse Investigation Department Series (7 volumes in total)" on Baidu to find the latest chapters!

    After a few months of "Operation Fox Hunting", Ye Qian returned to the unit with the medal of "Second Class Personal Merit"; I originally wanted to call A Le to pick up Ye Qian's wind, but who knew that he had taken a long leave.

    Without Ah Le to accompany Ye Qian in racing, I naturally became her only "little friend".  In order to ensure that the "boat of friendship" would not capsize at any time, I would accompany her everywhere except sleeping with her. I almost became Ye Qian's "boy secret".

    Because criminal technology and criminal investigation overlap, Ye Qian comes to the department almost from time to time.

    "Look at this white wall, how it has been smoked by you and Ah Le's two old smokers?"

    "Stop it, compared to my addiction to cigarettes, I can't beat Ah Le. All of this is due to him."

    "You are not a good bird either. Do you know that every time you smoke a cigarette, you will lose 5 seconds of your life?"

    "It's okay, I won't miss these 5 seconds either."

    "you¡­¡­"

    "Why do you two start fighting each other as soon as they meet?" Fat Lei pushed open the door of my office with a heavy breath.

    "What's going on if you don't go to the Three Treasures Hall for nothing, Brother Lei?" I suddenly had a bad premonition.

    ¡°I just received a call that a human skeleton was found during demolition in Guqiao Community.¡±

    "What? Human bones?"

    ¡°I might not be so surprised to find human bones in the wilderness, but it is still rare to find human bones in living areas.

    "Could it be that no one found out after the homeless man or scavenger died of illness?" I have my own basis for this guess.  Guqiao Community is also familiar to me. It is located at the junction of urban and rural areas in Yunxi City. Many of the houses are red bricks and blue tiles from the 1980s and 1990s. To put it bluntly, if there is a magnitude 3 or 4 earthquake,  , it is estimated that they will all be reduced to ruins.

    ¡°Poor¡± is a recognized label there, and almost everyone living there lives at the bottom of society.  Some vacant houses have also become a paradise for scavengers.  Lack of clothing and food can easily cause scavengers to die in a foreign land. I have often encountered this situation, so I naturally thought of this aspect.

    "I thought it was before, but the situation was worse than we thought. It was the demolition team at the construction site who discovered the bones. They discovered the bones after breaking open the cement platform."

    "Cement hides corpses?"

    "That's pretty much it!"

    The suspect had the behavior of hiding the body. Based on this analysis alone, it can be almost 100% determined to be homicide.

    The last trace of fantasy was ruthlessly shattered. Ten minutes later, we were ready to go and drove towards the crime scene. When our investigation vehicle had just stopped, Team Xu was already one step ahead of us and cooperated with the local police station to raise the alert at the scene.  Wire.

    "Team Xu, what's going on at the scene?"

    "The reporter's name is Zhang Sheng, a worker from the demolition team. When they were carrying out the demolition task at No. 93 Guqiao Community today, they smashed open a large cubic concrete platform in the yard and found a human skull inside. They then called the police  Case closed.¡±

    ¡°Whose house belongs to it?¡±

    "According to the household register records, No. 93 in Guqiao Community belongs to a woman named Huang Xiuping. I have asked the investigators to contact her and we will get a reply soon."

    "Okay, let's go see the scene first."

    After getting dressed, a group of us stood outside the central site. Although the courtyard wall of the house has been completely knocked down, the structure of the house can still be easily restored through the architectural layout.

    This is a brick-concrete courtyard facing north and south. The courtyard is composed of three tiled houses in the east, west and middle. The tiled house in the middle is relatively larger in area. According to the normal building layout, this room should be the main room for living.  Room.

    The half-broken concrete platform was built under the window sill of the main house.

    ?According to measurements, this is a cube of cement that is 2 meters long, 80 centimeters wide, and about 1 meter high. The surface of the cement is covered with green moss, and it has probably been repaired for a long time.

    The white bones with hair on them are embedded in them like fossils.

    "Times have changed" at the scene, and I, the trace inspector, have basically lost the need for investigation.

    ¡°Let¡¯s carefully take out the bones first.¡±

    With the help of the small cutting machine, everyone started to help Mingge.

    The work of removing bones is much simpler than imagined, because the decay and expansion of the corpse will leave a gap between the bones and the cement, so the bones can be taken out directly by cutting the cement surface.

    corpseThe weapon's ability to crack open the skull of the deceased proves that its strength is not small. After these two points are eliminated, the remaining shortcoming can only be the striking distance.

    "That is to say, the suspect may have been in a small space when committing the crime, which prevented him from swinging the wrench over a long distance, so he was hit multiple times and died."

    "Every house in the courtyard is very spacious, so it can be ruled out. In other words, the suspect committed a murder in a 'small space' and then moved the body here?" I asked.

    "Yes, so this is not a murder scene."

    Brother Ming continued without pausing: "There are traces of repairs on the cement blocks, indicating that the suspect lived here for a long time after sealing the deceased with cement."

    "What? The suspect lived here?" This is definitely the most exciting news in the case so far.

    Brother Ming nodded and continued: "Cement is mainly made of silicate, lime powder, etc. The direct solidification effect of cement is not good, and it must be mixed with yellow sand. Judging from the cement blocks we cut, the suspect is in  When the body was poured, a large amount of yellow sand was also mixed in."

    "Adding water to cement is actually a hydration process, which can be divided into three stages: In the first stage, the cement particles contact and react with water, and the heat release rate is very high. However, due to the presence of gypsum, formation will occur on the surface of the cement particles.  A layer of passivation film reduces the heat release rate; in the second stage, the cement hydration heat release rate is the highest, and the cement particles also grow rapidly; in the third stage, the thickness of the cement hydration products accumulated on the surface of the cement particles  Gradually increasing, the hydration heat release rate of cement gradually decreases.

    "Judging from the reaction effect, cement hydration is actually a violent exothermic process. High heat will intensify the metabolism of microorganisms in the corpse, causing the corpse to decay quickly. Shortly after the cement solidifies, the poured corpse will gradually expand.  , the huge force will cause the cement block to crack within a certain period of time, and the large number of repair marks on the cement block should be the aftermath work done by the suspect after the corpse decay caused the cement block to explode."

    "The cubic cement blocks at the scene are relatively intact, which means that after the suspect's last repair, the corruption of the body was not obvious. Could it be that the suspect lived here until the body was completely skeletal before leaving?"

    "No need," Brother Ming shook his head and explained, "Only in the early stage of corpse decay will the cement block be cracked. After the human tissue is almost consumed by microorganisms, the force generated by decay is no longer enough to crack it.  , but based on my personal experience, it can be inferred that the suspect will have to live in the house for at least two months after pouring the body."

    "No matter how long they have lived here, as long as the suspect has lived here before, we can ask the landlord to find out."

    "Grandma, maybe the suspect is the landlord!" Fat Lei put away the camera and made a beautiful concluding speech for the investigation.  (Remember the website address: www.hlnovel.com
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