Liu Jinghui followed Jiang Yuan's steps and measured the nearby route.
Yuan Bomin is busy collecting nearby surveillance cameras, which is a meticulous job. In contrast, cameras that cooperate with the police and citizens are easy to obtain, but some small stores install surveillance cameras by themselves, which is very troublesome. Some simply use cameras similar to
The purpose of home surveillance cameras such as Xiaomi's may be just to see the cashier or your own goods. Not only is the management not strict, but the stored videos are also messy. These may need to be taken back and sorted out before they can be useful.
In fact, Yuan Bomin himself is not sure what the use of these videos is.
However, since Jiang Yuan wanted it, he had no hesitation.
It's normal that the video collection is useless. We can't let Jiang Yuan have nothing to use when he needs to check the video surveillance.
Yuan Bomin guessed that Jiang Yuan might want to check the suspect's means of transportation, and specifically ordered: "Even if the drug dealers separate people and goods, there must be someone who will put the drugs at the trading location, and this person will most likely take the car, so
, the surveillance near the driveway needs to be completed..."
"Yes." The subordinates gave him a little face.
Yuan Bomin said a few more words and emphasized: "Some surveillance cameras have been left for a long time, and those people may have forgotten about them, so they should remember to put them away. For example, in the security booth in the parking lot, the monitoring of the security booth is closely related to the police system.
Those that are connected to the Internet. Some bosses have installed the computer monitors in the security room themselves, and they have to be put away. There are also those near the road, such as the cameras in the elevator. You can't see them when the elevator goes up, and you can't see them when the elevator comes down and the door opens.
You can see it..."
"I got it, Captain Yuan." The team members began to dislike the captain's long-winded tone, and his tone was quite harsh.
Yuan Bomin said helplessly: "Don't think I'm verbose. The more bizarre the surveillance is, the more surveillance is in an unexpected location. It's not easy for the suspect to think of it. Maybe he will show up, right."
"I know, Captain Yuan!" The tone of the subordinates became even harsher.
The guard next to me was so busy that he helped translate: "They must really dislike you for being verbose."
Yuan Bomin glanced at Wei Shijun: "Don't I know?"
The team members also glared at Master Wei: "Children, go ahead. Even if Captain Yuan is really verbose, we can't possibly tell him."
"Okay, okay, I'm the one who was verbose." The health teacher walked away and found himself among the crowd of the criminal police detachment. He said helplessly: "The anti-drug people are really difficult to deal with. I just wanted to have a few words and brainstorm.
There's no fun at all. Do you have similar feelings?"
"Yes, Master." The tone of the criminal police officers gave Master Wei a feeling of déjà vu.
Liu Jinghui followed Jiang Yuan for several streets and began to feel a sense of déjà vu. He couldn't help but said: "These newly built roads are all around like this. They look almost the same. Let's look at them one by one like this. Do you want to
What are you looking at? Are you looking for a path that the suspect must take?"
"It would be great if there is a way to go." 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 only a few crowded roads, and there are no dead ends."
"I'm also thinking about this issue." Jiang Yuan looked at both sides and said: "If you were a drug dealer, when going in and out of here, would you choose the road with fewer people or the road with more people?"
This was a matter of reasoning. Liu Jinghui was shocked, thought for a while, and said: "The advantage of choosing a road with many people is that it is easier to blend in with the crowd. There are less surveillance here, and it is a suburb that has been annexed by the city.
The county has a complex population and a large floating population, so there are many people to choose from.
The route is less likely to be discovered and has a high error tolerance rate. The disadvantage is that once discovered, it is not easy to run. Roads with many people are converted from old roads, the road surface is not wide enough, and many are operated by electric vehicles and stalls.
Once you are unlucky and blocked, you basically can’t escape.”
Zhongxin Road is a big road, and it is also the main road connecting Wujiaige to the urban area. However, on both sides of Zhongxin Road, the situation is more complicated. There are newly opened roads, which are wide and straight, with fewer people and fewer cars, and there are also reconstruction of old roads.
After reconstruction on the basis of county roads or village roads, traffic conditions deteriorated sharply.
Jiang Yuan smiled: "The error tolerance rate is high, but it is difficult to run if you make a mistake. As a result, the error tolerance rate is reduced."
"It depends on how you think about it. Routes with fewer people are just the opposite of good and bad, with low error tolerance. For a period of time, he may be the only car on a road, and it is easy to detect it with surveillance. But it is easy to run...
However, given our domestic environment, it would actually be very difficult if we were discovered."
"Not necessarily. For drug dealers, if you prepare a safe house or an escape route, you still have a certain probability of escaping." Jiang Yuan also has some experience in chasing and escaping. In short, it is very difficult to escape without preparation.
Yes, but if you are prepared to escape, directly leaving the provincial or even national borders, or staying in a safe house with food and drink for a long time, you still have a chance of escaping.
But no matter which plan you choose, you need a lot of money to prepare. Needless to say, traveling abroad requires a large amount of travel and smuggler fees. Safe houses are even better. Rented houses can be used as safe houses abroad.
It’s very difficult. There are always troubles from landlords and neighbors. It’s best to buy a house yourself, prepare a large amount of supplies, and replace them from time to time. This requires a large area and the total cost is not small.
Liu Jinghui's thinking was very direct. He shook his head and said: "If you want to consider the lack of people and easy escape, then there is no need to make an appointment here. There are many transactions in the wilderness. Find a place with mountains and few trees. You can see it from the top of the mountain.
Is there anyone following me? Trading on the mountain is easy and clean."
"So you prefer the suspect to take the road with more people?" Jiang Yuan asked.
"Well, I think the right choice is to take a crowded route. Preventing discovery is the most important thing. On the other hand, if the suspect chooses this place, it is likely that the suspect is familiar with this place, or works and lives nearby." Liu Jinghui thought on his behalf.
: "As we said before, a drug dealer who makes so much money can't even keep his money in the bank. He can't just dig holes every day with tens of millions in cash. There are always expenses. Lanyue City
There’s quite a lot to play here.”
Jiang Yuan nodded slowly.
Liu Jinghui was afraid that Jiang Yuan wouldn't understand, so he whispered again: "Film and Television City."
"Of course, it could be gambling or something." Liu Jinghui changed the subject: "Will this help arrest people?"
"No." Jiang Yuan spread his hands and said: "From this angle, Captain Yuan should have chased me."
"He should have run away. You can ask again. Porn, gambling, and drugs are not separated. Drug lords also have to have a life." Liu Jinghui paused and asked: "Or the time of the transaction between Brother Li and the others?
List them all, and then see who appears nearby repeatedly during the corresponding period of time. This is a stupid idea, can it be done?"
Jiang Yuan thought for a long time and said, "That's a bit too stupid."
Liu Jinghui didn't care that his opinion was rejected. He had been doing this all these years. He just asked curiously: "How stupid are you?"
Jiang Yuandao: "First of all, the other party separates people from goods. This means that the person delivering the goods may be the person himself, or it may be the postman, or even the postman may be different every time. If so, this method
It’s useless.”
Jiang Yuan: "Secondly, even if there are fixed personnel to deliver goods, the delivery time is not fixed. It may be half an hour or even ten minutes in advance, or it may be one day in advance. In this case, the range is too large."
Jiang Yuan: "The third point is also the scope, the scope of geographical factors, their trading locations are not fixed, which means that they need to collect a lot of videos and watch videos for a very long time and in different locations..."
Thinking of this workload, Jiang Yuan couldn't help but shake his head.
"Okay. Does that mean you can't pile them up even if you use people to pile them up?" Liu Jinghui asked.
"At least not this much."
"Where's Xu Taining?"
Jiang Yuan laughed: "You are too difficult for him..."
After a pause, Jiang Yuan thought about it a little uncertainly, and shook his head again: "There is too little information now, and the natural shortcomings are still not enough."
"What about your solution?"
"According to the theory of geographical profiling, a circle is drawn with the transaction location as the center. The intersection area of the circles for multiple transactions is the suspect's place of residence or work..." Jiang Yuan first made a theory, and then said: "Let's put this theory
How about putting it into practice?”
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