booktalesy Chapter 1048 Nugget Gold
Chapter 1048 Nugget Gold
Chapter 1048 Nugget Gold
When Liu Jinghui began to apply for technical investigation intervention, Jiang Yuan began to study body No. 3.
Body No. 3 is more incomplete, missing its head, fingers and toes. Although the remaining parts can be used to judge basic items such as age, height and gender, it is more difficult to get a more accurate answer than with body No. 1.
Jiang Yuan spent several days studying corpse No. 1.
At his level, doing forensic anthropology is no longer as simple as using the pelvis to determine gender or using long bones to determine height.
The sternum, spine and even clavicle can be used to determine age, height, gender and other information. These studies were originally designed to meet the needs of dismemberment cases, but at a higher level, they are equivalent to six solutions to a problem. Although the six solutions all point to the same result, the degree of refinement is definitely different.
If the question is big enough, it is like a problem with three small questions, which actually represent three different stages in the process of moving towards the same goal.
Using multiple bones to make judgments at the same time will not only increase the accuracy, but also make it easier to obtain relevant information about the deceased.
In general, the more thorough your understanding of a bone, the more speculations you can make.
Body No. 3 was not good enough in every aspect. From the police's point of view, it was a very difficult body to solve.
The same goes for Jiang Yuan.
However, Jiang Yuan was only stuck for one day... Liu Jinghui took out a form first.
Time and space intersection is already a mature technology for technical investigation. Especially after responding to the epidemic, in the process of finding various close contacts, the technology has been improved and popularized at a very fast speed. It is no exaggeration to say that it is both good and fast.
Related technologies, such as electronic fences, can sometimes even break through the boundaries of mobile phones and determine the time a person passes a specific location. Combined with surveillance, face recognition and gait recognition technologies, it is easy to find a person without anti-reconnaissance experience.
After Jiang Yuan's name was reported, the technical detective took only half a day to give Liu Jinghui a list of 178 people who met the requirements.
Liu Jinghui screened them one by one and when he gave them to Jiang Yuan, there were still 67 people left.
"Xu Li doesn't come into contact with many people during normal working hours, but he occasionally comes to the front to display the goods, and then he comes into contact with more people." When Liu Jinghui told Jiang Yuan, he didn't feel embarrassed at all, but looked quite excited.
Deducing the real murderer from a group of suspects, this is what Sherlock Holmes does.
Especially when there is a Watson with gold-rimmed, glittering foil and diamonds by your side, the reasoning is more exciting.
Liu Jinghui stroked the list with one hand and said, "Regarding the screening of this list, I have a short-term plan and a long-term plan."
Jiang Yuan waved to Wang Chuanxing who was sitting in the corner of the office and asked him to take notes, then nodded to Liu Jinghui.
Liu Jinghui said: "The long-term plan is very simple. We should be able to rule out most of the people on the list by investigating their whereabouts at the time of the murder. The remaining people should be the focus of investigation. If necessary, we can refine the time of the crime, or investigate from the perspective of the murder weapon and the crime scene."
Liu Jinghui confidently said, "The short-term plan is simpler. Nowadays, people spend very limited time away from their phones. But since the murderer dared to challenge the police, he must be familiar with some of our methods of handling cases. I think he was likely away from his phone during the three time periods when he murdered No. 1, No. 2, and No. 3. Then let's look at the list for people with relevant records, and maybe we can find something."
Wang Chuanxing said at this time: "Isn't this list a list of time and space intersections? If he is separated from his cell phone... Oh, this list is the time and space intersection when the murderer observed and contacted Xu Li. When it comes to killing, he may not bring his cell phone?"
"That's about it." Liu Jinghui nodded slightly and said, "The murderer may have a second phone, or he may not have brought his phone with him when he was in contact with Xu Li. But these are difficult to find. The murderer could easily make a mistake if he is not careful. It is still worth investigating."
"Okay." Jiang Yuan didn't need a 100% perfect strategy.
If Xu Taining was the one who conducted the investigation, then it would indeed require a near 100% guarantee. Because it would cost too much money, even for a provincial capital like Changyang, it would be hard to accept the outcome of spending money but not solving the case if Xu Taining was hired.
As for whether it is reasonable or not, you can understand it by comparing it with the big directors of commercial films. Under high-risk investment, you are still allowed to have great autonomy, so you must use past achievements to back it up.
Then again, Liu Jinghui's plan doesn't need to be so particular. The investigation of dozens of people is not suitable to be described as "investigation", so just use "investigation" directly.
Even if Liu Jinghui wanted to investigate in more detail, the number and difficulty would only make it an ordinary job for the criminal police team.
After getting Jiang Yuan's approval, Liu Jinghui immediately took command of the criminal police.
This case is Ningtai County's own case, so it does not need the permission and approval of the local police force as it would be in other places.
Wu Junhao's explosion-proof patrol team and Liu Wenkai's criminal police team were already ready to go, and they immediately took action after Liu Jinghui assigned the tasks.
Wu Junhao's explosion-proof patrol team was really mobilized, and the long-term plan they implemented was to question everyone on the list and record their daily activities in the form of transcripts.
Liu Wenkai's criminal police brigade took a short-term route, first getting the results from the technical investigation, and then directly investigating the "key" suspects who were screened out. However, this investigation was more detailed. While using technical means, they also sent criminal police to the door. If the suspicion was still not ruled out, they would start sending people to follow.
The routes of both parties overlapped slightly, but Liu Jinghui didn't care, because the overlapping suspects themselves had a higher degree of suspicion. Investigating twice or changing people to investigate is also a mode of investigation.
In the next few days, the conference room in Building 9 remained brightly lit and busy.
The list of 67 people quickly dropped to 23, then 17, 12, 6, 3... until 0.
"Everyone's suspicion has been ruled out." Liu Jinghui had considered this possibility, but the final result was still a little beyond his expectations.
"Do you want to investigate the key suspects again?" Huang Qiangmin received the message and did not complain or comfort him. He directly expressed his support for Liu Jinghui.
Liu Jinghui was slightly tempted, but slowly shook his head and said, "We have already conducted a thorough investigation. There is little point in doing it again. All suspects have been ruled out, unless our clues are wrong. Otherwise, the suspect is not within the scope of our investigation."
This is the most annoying type of investigation or investigation, where you investigate a large number of suspects and find that all the suspects have been ruled out. If you start over, it is like starting over again.
Liu Jinghui pondered for a moment, looked at Jiang Yuan, and asked, "How about starting with corpse No. 3, and then looking for common points after confirming the source of the corpse?"
"Number three is more difficult to deal with. If we want to determine the source of the corpse, we may have to conduct a large-scale investigation." Jiang Yuan has also been studying corpse number three for several days. He replied, and then said: "The identity of corpse number two is already known, and we can't contact them for the time being. I'm afraid the same result will be found for number three."
Jiang Yuan is currently handling his own case. It is impossible for him to conduct a city-level investigation unless he is at his wit's end.
Liu Jinghui had to admit that what Watson, the owner of his own gold-edged glittering diamonds, said made sense.
Among the three bodies found so far, the first one is the most valuable and can provide the most clues.
Compared with the last two bodies, the randomness of body No. 1 does not seem to be that strong - of course, this is also Liu Jinghui's reasoning at this time.
Liu Jinghui also frowned slightly and thought that if there were no new clues, the reasoning would have to be more detailed.
Jiang Yuan said at this time: "Perhaps we can start from the murderer's skills."
"Knife skills?" Liu Jinghui reacted immediately. This was not uncommon in criminal investigation cases. He immediately asked, "Do you think the murderer has a medical background?"
"Yes, he is very skilled with a knife. He must have a medical background or a forensic background, or he has worked as a butcher or a chef." Jiang Yuan paused and said, "Without three to five years of long-term practice, his method of cutting up the corpse would not be so accurate."
Cutting up corpses is a typical practical activity, and it is not something that can be learned by reading a book. Only by cutting more, the feeling of inserting the knife, and the force of cutting can be accurately grasped, and only then can the smooth incisions on the three corpses be made.
Liu Jinghui nodded gently: "We previously assumed that the murderer and the suspect had a time-space intersection. If we cancel this point now, I think we can expand the scope of suspicion to the victim Xu Li's work scenes and life scenes, and the number of people can be increased."
This is equivalent to a professional background investigation. Even if the number of people is very large, the time and manpower costs will not be too high. Liu Jinghui turned around and immediately got busy.
Of course, once people with relevant backgrounds are identified, further investigation by the criminal police is required.
At this time, a man named Bian Yizhang came into the sight of the task force.
"Bian Yizhang. Owner of a tobacco shop. Has two permanent employees. His tobacco shop is only 50 meters away from the supermarket where Xu Li works. He has been a private butcher, a joint defense member, a volunteer, and often participates in social welfare activities. From the technical investigation, he often carries two mobile phones, and they are often turned off or away from him."
If it weren't for the extensive investigation in the early stages, just based on the information Wang Chuanxing read out, Bian Yizhang could be said to have no suspicion at all. Wu Junhao even spoke to Bian Yizhang face to face.
However, as the investigation progressed, Bian Yizhan's seemingly ordinary identities and behaviors shone like gold in the eyes of the task force members.