Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Moreover, dissecting a normal corpse and dissecting a rotten corpse are two completely different processes, because dissecting a normal corpse can infer many details through the changes in the internal organs of the corpse. However, if you have no experience in dissecting a rotten corpse, it is very difficult to distinguish valuable clues from a bunch of internal organs that look similar.

The next morning, the sun shone through the windows of the conference room, shining on everyone's tired but focused faces. The first case analysis meeting of the Beishan Reservoir corpse case was held on time in the Criminal Investigation Brigade conference room. Lu Chuan sat at the head of the conference table, his eyes firm and serious. In front of him was a thick stack of information, which was the preliminary results of the case investigation in the past few days. Zhang Hui, Wang Shuai, Yang Lin, Yang Sen, and forensic doctor Zhang Kai and others sat around the conference table, each of them with a solemn expression, knowing the importance of this meeting to the case investigation.

Lu Chuan was the first to break the silence. His voice was deep and powerful. "Comrades, the Beishan Reservoir corpse case is of a serious nature and we must solve it as soon as possible. We have gathered everyone here today to collect clues from all parties, sort out the context of the case, and determine the next direction of the investigation. Next, Zhang Kai will report on the autopsy of the body."

Zhang Kai cleared his throat and flipped open the autopsy report in his hand: "After a detailed autopsy and various tests, the basic information of the deceased has been preliminarily determined. The deceased is a male, about 40 years old, about 175 cm tall, and weighed about 65 kg before death. The direct cause of death was craniocerebral injury caused by blunt force trauma to the head. Judging from the shape of the wound and the skull fracture, the murder weapon should be a blunt object with a certain weight and hardness, such as a hammer or iron rod."

Zhang Kai paused and continued, "The deceased's lungs were obviously swollen, which means he was still breathing when he entered the water, a sign of drowning, but this was not fatal. The stomach was empty, and there was no obvious food residue in the duodenum. It is estimated that the deceased had not eaten for 6-8 hours before his death. In addition, the deceased's liver was enlarged, with scattered bleeding spots on the surface, and there were some abnormalities in the heart, but these may be caused by diseases before death, or changes in the process of decay after death, which requires further analysis."

"In determining the time of death, based on the degree of decay of the corpse, the digestion of the stomach contents, and environmental factors such as the water temperature and quality of the Beishan Reservoir, we comprehensively estimate the time of death to be around three weeks, with an error range of ±3 days." After Zhang Kai finished speaking, he closed the report and looked at Lu Chuan.

Lu Chuan nodded slightly, and after thinking for a moment, he said, "Zhang Kai's report is very detailed. This information provides important evidence for us to identify the deceased and investigate the murderer. Next, Yang Lin will report on the on-site investigation."

Yang Lin opened his folder and said, "We found some key clues around the iron cage and the body. We extracted a variety of fibers from the iron cage. After chemical analysis, one of the fibers was high-strength nylon fiber for industrial use. This fiber is usually used to make large transport bags, lifting belts, etc. Another fiber is cotton, but it has been specially treated and contains some chemicals. Preliminary judgment is that it may come from some kind of work clothes."

"In addition, some grease was found in the iron cage and on the body. After component analysis, it was found that the grease was a special mechanical lubricant, commonly used in gears and bearings of heavy machinery. This shows that the deceased or the murderer may be related to places or jobs where such heavy machinery is used." Yang Lin said as he showed the relevant test report.

"At the bottom of the iron cage, we found some strange marks, like traces left by scratches and prying by sharp tools. After analysis, colleagues from the technical department believed that these marks might have been caused by a crowbar or similar tools, and might have been left by the murderer when he was fixing the body or moving the iron cage," Yang Lin added.

Lu Chuan listened carefully to Yang Lin's report, wrote down the key information in his notebook, and then said: "These clues are very valuable, especially the discovery of fiber and oil, which provides us with a direction to narrow the scope of the investigation. Zhang Hui, tell me about the investigation."

Zhang Hui opened his notebook and said, "Wang Shuai and I visited two villages around the reservoir, Qianping Village and Houwa Village. In Qianping Village, an old man said that about a month ago, he heard a dog barking and saw a black car parked not far from the village. Two people got out of the car, one tall and one short, both wearing hats, acting suspiciously, and then the car drove towards the reservoir."

"In Houwa Village, we also obtained some important clues. Some villagers saw an iron cage next to the reservoir four days ago, and there were footprints next to it. Other villagers reported that they saw a suspicious person near the reservoir a week ago. He was wearing a mask and a hat, long sleeves, and a backpack. He walked with a slight limp and was about 1.7 meters tall. In addition, some villagers saw an old black motorcycle parked near the reservoir." Zhang Hui reported the visit in detail.

Zhang Hui continued: "However, no direct clues related to the identity of the deceased have been found so far, and no reports of missing persons have been received in the surrounding areas. But this information about suspicious persons and vehicles may help us find a breakthrough in the case."

After listening to the report, Lu Chuan frowned and paced back and forth in the conference room, thinking about the connection between these clues. After a moment, he stopped and said, "Based on everyone's reports, we have some key clues. Although the identity of the deceased has not yet been determined, through the autopsy and on-site investigation, we know the basic characteristics of the deceased, the cause of death and the time of death, as well as clues such as fibers and grease related to the case. The investigation also found some suspicious people and vehicles. Next, we will conduct further investigations around these clues."

Lu Chuan looked at Zhang Hui and Wang Shuai and said, "Zhang Hui, Wang Shuai, you should continue to expand the scope of your visit. It should not be limited to the villages around the reservoir, but also cover the surrounding towns and factories. Focus on checking places and people related to industrial nylon fibers and special machinery lubricants to see if you can find someone who matches the identity of the deceased, as well as clues to suspicious persons and vehicles."

"Yang Lin, Yang Sen, you should carefully analyze the fibers, grease and traces on the iron cages extracted from the scene to see if you can find more accurate information about their sources. For example, which manufacturer and model of products these fibers and grease came from, and whether the traces on the iron cages can match specific tools." Lu Chuan turned to Yang Lin and Yang Sen and said. (End of this chapter)