The vast majority of suspects who commit crimes are very cautious at the crime scene and will subconsciously avoid surveillance probes.

But the farther away they are from the scene, the less vigilant they will become, and they will no longer try to avoid the ubiquitous surveillance.

After all, with today's city's surveillance coverage, it is almost impossible to avoid all surveillance.

You can also move around a little in a small area, and avoid the coverage of the surveillance through various snakeskin movements, but you must avoid all the surveillance in the city, unless you know how to fly away.

The deployment of monitoring, in the case of not being able to achieve full coverage in the real sense, one of the most basic principles is closure and control!

Seal off the various areas, cut a city into small pieces one by one, and as long as the suspect crosses these areas, he will inevitably leave an image.

From the perspective of investigation, unless you can lock the route and time of the suspect's escape, or know the physical characteristics of the suspect in advance, even if you see the suspect in the surveillance in a farther area, you will not be able to determine the identity of the other party.

After all, in a city, there are too many people coming and going, even if it is three or four o'clock in the morning, there are also many people moving under countless surveillance.

How can you tell who is a suspect?

However, this problem does not exist for Mu Yuan, as long as it is a case that has just occurred, he can lock the route of the suspect's evacuation, so as to screen out valuable monitoring probes and view them in a targeted manner.

According to the time when this shadow appeared, pushing the timeline back, Mu Yuan easily saw a suspicious person under a monitoring probe about 300 meters away from the entrance of Sixun Street.

It's a place of recreation and entertainment, and it's noisier at night than during the day.

In order to enhance the sense of security of the masses, the quality of the street lamps installed by the municipal company here is also very good, and the lighting is called a bright light.

The area to which the monitoring is located is an alleyway, and there are five or six KTVs and bars in the alleyway, and the business is also very good.

Undoubtedly, such an environment is the most concerned and concerned place for the public security organs, don't look at the monitoring probe here and other places the same, but in fact, its pixels far exceed that of ordinary surveillance probes, reaching 8 million.

Coupled with the assistance of lighting, there is no pressure at all to see the suspect's face.

The man was dressed in a black tracksuit, was about 20 years old, carried a backpack, and walked at an unhurried pace.

Although he had been very careful to cover it up, Mu Yuan still found that after he entered the surveillance screen, his eyes secretly glanced at the direction of the surveillance probe.

Of course, more importantly, at this point in time, he passed by here alone.

Who dares to say that this person is not a suspect, Mu Yuan dares to fry fish in the palm of his hand and eat it.

With the photo there, Mu Yuan copied it out with great interest, and then found Luo He.

"Brother Luo, the suspect's frontal portrait is available, let's see if we can confirm his identity. Mu Yuan behaved calmly.

Luo He was stunned, this guy looked around and monitored it, and locked the suspect?

Seeing Luo He standing like a stunned man, Mu Yuan couldn't help but remind him again: "Brother Luo, take a look first." ”

"Good!"

Luo He copied the photo to the computer and began to compare people......

A few minutes later, the comparison results came out, and those who were in the front with a high degree of similarity were all inconsistent with the suspects, and the age gap was a bit large.

There is a person who is also around 20 years old, but his identity is a university graduate student, and he is not in Xihua City, so the chance of being a suspect is very small.

"Are you sure this person is really a suspect?" Luo He couldn't help but ask.

Mu Yuan said: "It shouldn't be wrong." The time and place are basically right, and carrying a backpack makes it even more suspicious. ”

Luo He's heart moved, and he immediately searched for pictures in the image detection platform, and in less than half a minute, a picture taken by this monitoring point was presented in front of him.

Same outfit, different time.

The picture that Mu Yuan saw before was that this person entered the alley, and now the picture that Luo He found came out of the alley.

The interval between the two is almost an hour.

Luo He looked suspicious, even if he was a weak chicken in the investigation and handling of cases, he could also see the problem.

In the middle of the night, this guy passed by the alley twice, and he was carrying a pair of backpacks, what did he want to do?

Luo He's mind involuntarily thought of smashing the car and stealing.

"Brother Luo, you see this person passed through the intersection twice, and the shape of the backpack changed. The former was more shriveled and swollen a lot when he came back. Mu Yuan said with a look of surprise.

Luo He looked at it, it was really like this.

At this moment, Luo He also believed Mu Yuan's inference, and this person was indeed very likely to be the suspect in the car smashing theft.

But how do you determine the identity of this person?

Although this camera captures the face, after all, it is night, and the portrait situation is not so good, and it is impossible to lock the person's identity directly through face recognition, which is very embarrassing.

When Mu Yuan was at the scene before, he only checked at the entrance of the alley, and after confirming that there was surveillance to photograph the suspect, he turned back.

Although he could have tracked it all the way through his breath at that time, the devil knows how far this guy had run? With Luo He with him, he couldn't directly find the other party's lair with such a clear purpose, right?

Anyway, there is surveillance, and he thinks that locking his identity should not be a big problem.

Now that things have changed, he hesitates, should he go back and follow the taste to the end?

Just when Mu Yuan was undecided, Luo He's heart moved, and said: "I remember that there is also monitoring at the exit at the other end of this alley, and the layout is basically the same as this monitoring, and the entire alley entrance is also blocked. But our search just now didn't find this person entering and exiting from another alleyway, does this mean that this person's den is in this alley?"

A light flashed in Mu Yuan's mind, and he said, "Yes...... We can type out this picture and take it to the alley for investigation. ”

Luo He didn't care about it, and immediately threw away the work in his hand, and said, "Let's go!" ”

After all, it is necessary to investigate the entire alley, although the alley is very short, so short that it does not even have a name, but after all, there is a community entrance and five bars, KTV, and a barbecue restaurant......

Well, the latter is not the point, the key is that the community, involving hundreds of households, is not to say that you can investigate.

However, when they found the duty room, they were told that Zhao had gone to the police.

It is also very devastating to meet a leader who likes to handle the police in person! Especially when there is only one leader in the unit.

"This Zhao Suo, he shouldn't be on duty, why is he running so actively?" Luo He spat out a bad sentence, and was about to pick up his mobile phone and dial Zhao Suo.

At this moment, there was a sound of footsteps outside the duty room, and Luo He looked up and saw Yang Suo and Wanjiao walking in from the door.

Well, no phone calls are required.

......

"Xiao Mu, I said we should have lunch before coming out. Luo He drove in person this time, vomiting as he walked, "It's almost half past eleven now, what can I find out?"

Mu Yuan sat in the co-pilot, like a leader.

He smiled slightly and said, "Half an hour is already a long time. Besides, even if you go back so late, as long as you catch someone, you're afraid that you won't have anything to eat?"

Luo He was stunned, for some reason, he felt that Mu Yuan had something to say when he said this, and he had ulterior motives.

This time I came out to drive a civilian car.

Obviously, he already knew that the suspect's den was in that alley, and if he was still driving a police car, it was obviously a brain problem.

If the suspect is alarmed and runs away, will he go on a business trip again? Anyway, Mu Yuan refuses this.

In a few minutes, the car was already leaning on the parking space, and the alley entrance was close in front of you.

"Let's split up and look for it. After Mu Yuan got out of the car, he suggested, "This is more efficient." ”

Luo He hesitated for a moment, and then agreed.

After all, it's just an investigator, as long as the suspect himself is not investigated, there will be no danger, and naturally there is nothing to worry about.

Besides, Luo He is also quite confident in himself - a 64-style pistol on his waist, and he is confident in anyone.

As for Mu Yuan, there is no need to worry, although he doesn't have a gun, this kid is definitely more dangerous than a gun......