stjorthotic Chapter 1203 Because Already
Chapter 1203 Because Already
Chapter 1203 Because It's Already...
Jiang Yuan's matter-of-fact response brought about a moment of silence.
The tacit silence in the auditorium with two or three hundred people was a kind of shout in itself.
Everyone here has already started working. Those who have been working for a long time, like Pang Jiedong, will retire in a few years. Those who have been working for a short time will have two or three years of experience. Younger people will not be sent here for training.
In fact, anyone with a little bit of criminal police experience and who has participated in investigating a few cases will know how outrageous what Jiang Yuan said was.
No matter which route you choose, the case can be solved. It sounds like all roads lead to Rome. But when you really do it, you will realize how difficult it is to find a road, how tiring it is to build a road, and how many mountain sculptures you have to encounter if you want to open a road.
The task forces that handle major and serious crimes operate several investigative routes at the same time. That's because they don't have a clear direction. Secondly, it is very likely that they will end up with only one investigative route after so many attempts.
The rest have "No Road" written in the middle of the road.
As for small cases, they are not necessarily easier to solve than big cases.
Most of the time, the police can easily solve small cases because the perpetrators themselves are not careful, or they are "people in the underworld" and are accidentally pointed out, or they commit crimes repeatedly, resulting in a series of linked cases, which provides more information for the investigation.
Finally, many small cases are also because the perpetrators have weak resistance. Although China is not like the United States, where plea bargains can be made, whether in the interrogation room or after being sent for inspection, people on the other side of the iron fence will use various means to put pressure on the suspect.
Suspects who have committed serious crimes are often more resistant and know that they may die if they confess. For those who are involved in minor crimes, it is not easy to persist, especially when faced with the choice of staying in prison if they confess or waiting for a real sentence.
For example, in the case of the "Sunshine Supermarket", the small boss who committed the crime was able to get a little bit of everything, but even so, without a certain amount of investment, this kind of case may not be solved.
As for the rape case, this is actually considered a relatively large case, and the difficulty is definitely much higher than the theft case in the "Sunshine Supermarket".
Relatively speaking, "all roads lead to Rome" is naturally more difficult.
But, among the two or three hundred people in the room, is there anyone who doesn't believe Jiang Yuan? Is there anyone who dares not believe him? Is there anyone who is willing not to believe him?
But when it comes to belief, anyone with a little bit of common sense will first think of words like "overpraising to death".
Silence is the best answer.
Jiang Yuan was unaware.
He was a bit of a jerk. He lacked a correct understanding of the difficulty of some cases. On the other hand, he was too lazy to do anything down to earth. To Jiang Yuan, it was all unnecessary. His father had more houses for rent than cattle, and he spent the pocket money his father gave him every month. How could he afford to do anything down to earth?
Therefore, Jiang Yuan turned a blind eye to the silence below.
If you have any opinions, just raise them. If you don’t, Jiang Yuan won’t act based on their expressions.
Jiang Yuan sorted out his thoughts and said, "I will analyze this case one by one according to the plans on the notes you handed over. Well, police officers who have ideas can continue to hand in notes."
Jiang Yuan wrote something down in his notebook and said, "Forensic botany is very laborious, but it's actually simple. If both parties have physical contact, it's possible to transfer and exchange pollen. One thing to note here is that some pollen is difficult to transfer through simple contact, while others are relatively easy. This can be used as a basic idea to distinguish between native pollen and transferred pollen... Jidong, you will be responsible for this route."
"Yes." Pang Jidong stood at attention and saluted.
Although he is a team leader from another place, he is always respectful to his master Jiang Yuan, just like when he first joined the unit and became a disciple of the master more than 20 years ago.
Jiang Yuan also nodded with relief.
Pang Jiedong's forensic botany skill tree is rather crooked. He himself actually has no basic knowledge of botany. He is the type who doesn't even know how many types of paulownia trees there are. However, his knowledge of forensic botany has been improved. He is a technical talent who knows how to use forensic botany. He knows which cases can be used to find people, which cases can be solved using forensic botany, and he also knows which plans are efficient, time-saving, and have the highest accuracy rate.
"The idea of linking and combining the cases... Master Wei, what do you think?" Jiang Yuan continued to call out the names of his apprentices, and the people below were envious when they heard it.
Wei Shijian is back online.
This time, the area around Master Wei was clean and tidy, and the background wall was specially cleaned up.
And on the big screen in the auditorium, the expression on Wei Shijian's one-meter-square face was clearly twisted.
Wei Shixun waited for a long time before saying, "If we use surveillance video to solve the case, we currently face three main difficulties. The first is that it is difficult to determine which of the people in that time period is the suspect. The second is that even if there is a suspected suspect, the face cannot be seen clearly due to the light from the surveillance camera at the door of the bar. The third is that even if the face can be seen relatively clearly, facial recognition cannot find the person."
Jiang Yuan called him, and he must be solving the case through surveillance. Although Wei Shijian had no experience in criminal investigation, he was able to solve the case smoothly thanks to this.
At this point, Wei Shijian felt a little more relaxed, and continued, "If we combine the cases, we can solve these three difficulties. First, the suspicion of repeated cases will increase. Second, if we can't see the faces clearly, we can use other physical features to confirm that they are the same. Third, with data from multiple cameras, we can better perform facial recognition."
"Okay, I'll leave it to you. Well, Shen Yaowei, you cooperate with Wei Shixun." Jiang Yuan pointed out the local second generation to Wei Shixun, and the two should be able to cooperate better.
Wei Shixun was a little panicked for no apparent reason: "Should I investigate independently?"
"If you have any questions, come to me. Also, make a version of image enhancement first." Jiang Yuan signaled Wang Chuanxing to turn off the communication, then turned around and said, "Captain Liu, this plan may expand the case, you can send a team to follow up. Don't worry about the guards and the others, just try the series and parallel cases first."
"No problem." Liu Wenkai responded immediately: "This guy seems to be quite skilled at drugging and raping people. This should not be his first time. However, this is the only case that our local police have reported to. We need to contact our colleagues from other places."
Jiang Yuan pursed his lips: "You decide."
Liu Wenkai also laughed out loud. Most of the people sitting in the auditorium were colleagues from other places. This was much more efficient than making phone calls or sending official letters during business trips.
"Well, let's move on to the third direction, the idea of finding fibers. I'll do this." Jiang Yuan said, his eyes naturally drifting to his laptop.
There was an inexplicable silence in the auditorium for half a minute.
Huang Qiangmin looked up, coughed twice, and asked, "Jiang Yuan?"
"Oh, I'm done." Jiang Yuan sat up straight.
"Would you like to tell me more about your idea of finding fibers?" Huang Qiangmin asked.
"Uh..." Jiang Yuan hesitated: "The main thing is that I have finished it."
The detectives who were originally whispering to each other suddenly felt that the surroundings were extremely quiet.
Huang Qiangmin coughed heavily a few times: "Isn't it a good opportunity to talk about it?"
"I am considering it. If I say something, it will be difficult to investigate in the other two directions." Jiang Yuan's expression was quite serious, as if he had really considered it for others.
Liu Wenkai: "Then let's go?"
"That's fine too." Jiang Yuan answered equally straightforwardly. This is indeed a solution.
"Okay." Liu Wenkai was amused and felt it was a bit weird, but he did get up and leave.
Although solving cases is important, this is training, and the focus is on training, which doesn't seem to be wrong.
Shen Yaowei, Pang Jiedong and others also left, while the remaining detectives stared with eyes wide open, as if they were watching a magician solve a puzzle.
Seeing this, Jiang Yuan took out a pen, wrote a few times on the notebook, and listed a simple outline. He then said: "In fact, everyone has experience in solving cases through fiber. In this case, the value of the evidence at the crime scene is relatively low. The most valuable and important evidence is actually the victim's clothes, especially the front of the clothes."
Jiang Yuan asked Wang Chuanxing to play the evidence pictures again, and found the desired P31 picture. He said: "This is the coat worn by the victim. I asked my colleagues in the laboratory to carefully check it and found that there are many fibers on the lining of the coat. Some of the fibers come from the victim's own clothes, but some of the fibers are of unknown origin. The key observation here is that there are torn marks on the edges of three fibers..."
Jiang Yuan drew a circle on the enlarged picture and said, "Here, here, and here, there are similar fibers. After testing, it is confirmed that the fiber is natural cashmere and is dyed burgundy. In this way, combined with the surveillance video at the time, we can actually confirm that the suspect is this..."
Wang Chuanxing quickly released Picture P219, a middle-aged man wearing a burgundy sweater.
"Can it do facial recognition?" someone asked in a low voice below.
"It's impossible. The face is not clear and the angle is not good." Jiang Yuan said, and then said: "But we can find the car he took when he left..."
This time, Wang Chuanxing had no picture, so Jiang Yuan quickly operated and took a screenshot of the vehicle.
"He took a taxi?" Someone saw the operating information above. This time, without Jiang Yuan's explanation, he immediately said, "If we can find the information of the person who took the taxi through the vehicle, we can basically determine the identity of the suspect!"
"That's it. Let's stop here for today." Jiang Yuan silently began to pack up.
The criminal police in the auditorium watched Jiang Yuan leave.
The moment the door of the auditorium closed, there was a loud bang and the place became noisy and lively:
"Fuck!"
"grass!"
"cao!"