Chapter 1143: Drawing a Circle

Liu Jinghui followed Jiang Yuan's pace, measuring the nearby routes.

Yuan Bomin was busy collecting nearby monitoring, which is a meticulous work. In contrast, police-civilian cooperation cameras are easy to get, but some monitoring installed by small shops themselves is very troublesome. Some use home monitoring cameras similar to Xiaomi, and the purpose may just be to look at the cash register or their own goods. The management is not strict, and the stored videos are messy. These may need to be brought back and organized before they can play a role.

In fact, these videos were collected, what is the use, Yuan Bomin himself is not sure.

However, since Jiang Yuan wants it, he has no hesitation.

The video was collected and useless, that is normal. You can't let Jiang Yuan need to check video monitoring and have nothing to use.

Yuan Bomin guessed that Jiang Yuan might want to check the suspect's means of transportation, and specifically ordered: "Even if drug dealers engage in separating people and goods, there must be a person in the end to put the drugs at the transaction location. This person is likely to take a car, so the monitoring near the lane must be collected completely..."

"Yes." The subordinates gave a little face.

Yuan Bomin said a few more words, and emphasized: "Some monitoring cameras have been placed for a long time, and those people themselves may have forgotten, so remember to collect them. For example, inside the security booth of the parking lot, the monitoring of the security booth is networked with the police system, and some bosses themselves get the monitoring of the computer in the security room, so they must also be collected. There are also those near the road surface, such as the cameras in the elevator. You can't see it when the elevator goes up, but you can see it when it goes down and the door opens..."

"Got it, Team Leader Yuan." The team members began to dislike the detachment leader for being wordy, and their tone was quite stiff.

Yuan Bomin said helplessly: "Don't dislike me for being wordy. Those monitors, the more weird the position, the more monitors in positions we can't think of, the suspect is not easy to think of, maybe they will appear, right."

"Got it, Team Leader Yuan!" The tone of the subordinates was even stiffer.

Wei Shiyan, who was bored, helped translate: "They should really dislike you for being wordy."

Yuan Bomin glanced at Wei Shiyan: "Don't I know?"

The team members also glared at Wei Shiyan: "Go aside, kid. Even if Team Leader Yuan is really wordy, we can't say it."

"Okay, okay, okay, I'm wordy." Wei Shiyan fled in a panic, found the crowd of the Criminal Police Detachment, and said helplessly: "The anti-drug ones are really hard to deal with. I thought about chatting for a few words, brainstorming or something, but there is no interest at all. Do you have similar feelings?"

"Yes, Shiyan." The tone of the criminal police made Wei Shiyan feel familiar.

Liu Jinghui walked a few streets with Jiang Yuan, and also began to have familiar feelings, and couldn't help but say: "These newly built roads are all like this, looking the same. We are looking at them one by one like this, what do you want to see? Do you want to find a way for the suspect to pass?"

"If there is a way to pass, of course it is good." Jiang Yuan spread his hands.

Liu Jinghui smiled: "The roads here are all extending in all directions, and they are all new roads. There are not many roads with many people, and there are no dead-end roads."

"I am also considering this problem." Jiang Yuan said while looking at both sides: "If you were a drug dealer, if you enter and exit here, would you choose a road with few people or a road with many people?"

This is a reasoning problem. Liu Jinghui's spirit was shocked, thought about it, and said: "The benefit of choosing a road with many people is that it is easy to melt yourself into the crowd. The monitoring here is small, and it is a suburban county area swallowed by the city, with complex crowds and many floating populations. Choosing a route with many people is less likely to be discovered, and the fault tolerance rate is high. The disadvantage is that once discovered, it is not easy to run. The roads with many people are all changed from old roads. The road surface is not wide enough, and there are many electric vehicles and stalls. Once unlucky and blocked, it is basically impossible to run."

Zhongxin Road is a main road, and it is also the main road connecting Wu Jiao Ge to the city. But on both sides of Zhongxin Road, the situation is more complicated. There are newly opened roads, wide and straight, with few people and few cars, and there are old road renovations, rebuilt on the basis of county roads or village roads, and traffic conditions have turned sharply.

Jiang Yuan smiled: "The fault tolerance rate is high, but it is not easy to run if it is wrong, and the fault tolerance rate is reduced again."

"This depends on how you think about it. The route with few people, the pros and cons are just the opposite. The fault tolerance rate is low. For a period of time, there may be only one car on a road. There is monitoring and it is easy to find. But it is easy to run... However, in our domestic environment, once discovered, it is actually very difficult."

"Not necessarily. Drug dealers, if they are prepared for safe houses or escape routes, still have a certain probability of escaping." Jiang Yuan has some experience in chasing and escaping. In short, an unprepared escape is very difficult, but if it is a prepared escape, directly leaving the provincial boundary or even the national boundary, or staying in a safe house with food and drink without going out, staying for a long time, still has a probability of escaping.

But no matter which plan, it requires a lot of money to prepare. Not to mention running abroad, the travel expenses and the cost of the snakehead are not a small amount. Safe houses are even more so. Abroad, you can use rented houses as safe houses. It is very difficult in China. If you don't move, you will have landlords and neighbors looking for trouble. It is best to buy a house yourself and prepare a large batch of supplies, changing them from time to time. This requires a large area, and the total cost is not small.

Liu Jinghui's thinking is very direct, shaking his head and saying: "If you want to consider that few people are easy to run, there is no need to make an appointment here. There are plenty of wilderness. Find a place with few trees on the mountain, stand on the top of the mountain and see if anyone is following, and trade on the mountain top, which is easy and clean."

"So you tend to suspect that the suspect takes a road with many people." Jiang Yuan asked.

"En. I think the correct choice is a route with many people, preventing being discovered is the main thing. Another point, the suspect chooses here, it is likely that the suspect is familiar with this area, or works and lives nearby." Liu Jinghui substituted thinking: "As we said before, drug dealers who earn so much money, their money is not easy to save in the bank. They can't dig holes to bury tens of millions of cash every day. They always have to spend it. In Lanyue City, there are still many ways to play."

Jiang Yuan nodded slowly.

Liu Jinghui was afraid that Jiang Yuan would not understand, and whispered again: "Film and television city."

"Money laundering?" Jiang Yuan understood a little.

Liu Jinghui sighed: "Liu Wenkai."

"Oh..." Jiang Yuan understood in seconds.

"Of course, it may also be gambling or something." Liu Jinghui changed the subject: "Does this help catch people?"

"No." Jiang Yuan spread his hands and said: "This angle, Team Leader Yuan's side should have chased it, right."

"It should have run away. You can ask again. Gambling, drugs, and prostitution are not separated. Drug lords also have to have a life." Liu Jinghui paused and asked: "Or list the transaction times of Li Si Ge and Fat-Wrapped Muscle, and then see who repeatedly appears nearby during the corresponding time. This is a stupid method, can it work?"

Jiang Yuan pondered for a long time and said: "A bit too stupid."

Liu Jinghui didn't care that the opinion was rejected. He had been like this for many years, just curiously asked: "How stupid is it?"

Jiang Yuan said: "First of all, the other party is separating people and goods. This means that the delivery person may be the person himself, or it may be a postman, or even the postman may be different every time. If this is the case, this method will not work."

Jiang Yuan: "Secondly, even if there are fixed personnel to deliver goods, the time of delivery is not fixed. It may be half an hour or even ten minutes in advance, or it may be a day in advance. In this way, the range is too large."

Jiang Yuan: "The third point, it is also the range, the range of geographical factors, their transaction locations are not fixed, which means that a lot of videos need to be collected, and videos of very long times and different positions need to be watched..."

Thinking of this workload, Jiang Yuan couldn't help shaking his head.

"Okay. It means that using people to pile up, can't pile it out?" Liu Jinghui asked.

"At least you can't pile it like this."

"What about Xu Taining?"

Jiang Yuan laughed: "You are too difficult for him..."

After a pause, Jiang Yuan also thought about it a little uncertainly, and shook his head again: "Now the information is too little, the natural short board is still not working."

"Then what is your method?"

"According to the theory of geographical portrait, draw a circle with the transaction location as the center, and the intersection area of the circles of multiple transactions is the suspect's residence or workplace..." Jiang Yuan first pulled a theory, and then said: "Let's practice this theory, how about it?"