There is still a difference between taking it back and searching for it yourself.

The operators sitting in the technology center could only see with pure eyesight, but Gai Qingyun was very familiar with this realm.

In the first few days of the Lunar New Year, he rushed to the National Shooting Center to start training, including nearly half a month when he went to Qionghai, and Yan Qing had been here for two months.

In fact, it was also two months of very hard training.

Not to mention in Qionghai, the entire shooting center is in the gym every day, and then the indoor shooting range, skeet shooting range, restaurant and other places go back and forth.

I am very familiar with the facilities of the entire shooting center, and I know every corner and flower bed well.

Therefore, all these surveillance cameras, in Yan Qing and Gai Qingyun's hearts, are different from those operators, they have accurate locations, and they can form a directional relationship in their hearts.

Gai Qingyun, who has been watching for seven or eight hours in a row, will not get tired yet.

manipulated a bunch of face recognition software to assist him, accurately screened Director Yan, and all Director Yan's movement tracks for three months were listed, and they could be compared repeatedly.

Dozens of people can't do it with such efficiency and precision as he does.

People have omissions, slackness and information transmission errors.

Electronic devices do not.

In the video listed by Gai Qingyun, the 58-year-old Director Yan is close to retirement age, and he goes from the residential area to the office every day, eats in the canteen, takes a lunch break, and then goes from home to the office, and goes to the heated pool to swim before dinner, and then goes home.

Every day, there is almost no socialization, and the occasional official entertainment is in the restaurant of the shooting center, well, it is the internal high-end restaurant where Lao Yan puts his face on Yan Qing.

So Director Yan hardly went out.

Even since the development of the Qionghai Sea, nothing has changed.

So the technical hall that repeatedly screened the video naturally ignored this part, focusing on the communication and contact that Director Yan might have with Lao Yan and others.

But in fact, the entire management center is so big, no matter how old fritters go to work and fish, they have to contact many people every day, and the difficulty of screening can be imagined.

What's more, there are no surveillance cameras in the office, what can you find?

Gai Qingyun found two suspicious points from this repeated process of going to work.

Yan Qing didn't say a word, she went back to the dormitory after losing the two girls, put on her glasses and looked at the picture that was transferred, not to mention, this way of leaning on the sofa to handle the case was quite comfortable.

"First of all, you see that when he comes out of his house, he will definitely walk through the corridor of the old cadre activity center, but there is no camera in the corridor."

"It's very reasonable, it's very cold in winter, sometimes there are rain and snow days, I see many people passing through here, there is heating, and there are curtains in and out, and the elderly are ...... when they fall outside and send them to the hospital."

As a large gold medal unit that has won honors for more than 30 years, the shooting center has naturally ensured the livelihood of a large number of veteran athletes and cadres over the years, which is understandable.

But Gai Qingyun can come up with data for comparison: "Before you went to Qionghai, he walked for 48 seconds at work, but since you went to Qionghai, to be precise, you began to increase your efforts to check the golf resort, Boss Huang is not dead, it has become 85 seconds, and each time it will almost double the time, three times a day......

The time is displayed in the upper corner of the video, and the time calculation of the relay of different cameras is very clear.

The operators also increased the speed by two or three times in the hall, and they may have ignored this difference, but the mobile phone man will not, no matter how many tens of times the speed is a cold gap in his opinion.

This made Yan Qing interested: "It's true, there are problems, there are problems, he goes to work in the morning and noon, and he goes home first in the evening and then swims and eats, three times?" ”

Gai Qingyun has already taken out the second comparison video screen: "The heated swimming pool is in the activity center of the old cadres, and the activity center is in front of the archery range, skeet range, behind is the indoor shooting range, and then the office building, almost all departments will pass by, there will be no one to chat with him every time, the morning and noon work have increased the time, but there is no change in getting off work and swimming, the key is here......"

What appeared on the screen was the picture of Director Yan just coming out of home, carrying a briefcase, one, two, three countless still pictures of the same camera at the same angle and almost the same time.

Flashing quickly......

Only in this way will people perceive something.

Yan Qing squinted: "That bag...... Seems to have gotten fat? ”

That's right, it's the usual black briefcase, and the bottom widens a little bit like an organ fold.

It's not much wider, and it's definitely not noticeable.

But if you accurately connect the photos in the same position, it's like a cartoon, and the whole body wears no change in dynamics, but the bag seems to have moved suddenly, and the kind of beauty filter failure in the small video makes people involuntarily notice.

Gai Qingyun: "It's still changed since you went to Qionghai, and then you walked out of the activity center and changed back." ”

Even if you put it in the bag itself, the difference between two or three finger widths is distinguished by the ruthless electronic eye.

But this is precisely the detail that the current face recognition technology does not care about, and no one calls these cameras that can accurately distinguish the width of the pupil to distinguish the width of the bag.

In fact, Gai Qingyun's recognition software is far less accurate than these advanced programs, but he himself is a super artificial intelligence that is higher than the software.

The human brain is so smart.

The screenshot of walking out of the activity center and walking into the office is exactly the same, and even the bag is a little more deflated than before Yan Qing came back.

In other words, Director Yan deliberately vacated the bag, loaded things to the activity center, and then took them out and hid them, and then went to the office.

Three times a day, even swimming, I would carry a briefcase for 42 days!

After another half a month, Yan Qing and He Shunzhi went to the door to arrest him.

The briefcase had long since regained its size, but the delay in the activity center had not changed.

I still go morning, noon and evening, and I will still delay for a while.

Of course, there is swimming time in the evening, and the difference is impossible to tell for a few minutes.

Now the two brothers are extremely sure that Director Yan has hidden something in the old cadre activity center, and it is still scattered by ants to move and send it over.

In fact, the answer is already very clear.

Maybe the operators in the entire technology center don't know the characteristics of this old cadre activity center.

They couldn't build a complete structure of the interrelationships between all the surveillance cameras in the shooting center.

Because there is a heated swimming pool and a gym here, showering and changing clothes are a common need.

So built a very complete locker room!

What's more, whether it is indoor or outdoor shooting and archery range, there is a need to change the competition uniform, especially for rifle shooting, there are shooting suits, and the archers also have a complete set of equipment with shoulder straps and quivers.

The pool locker room, which happens to be in the middle of the various training and competition facilities, has become a place for all the trainers to change their clothes.

You must know that those leather shooting suits are very heavy, and they are also very stuffy to wear, almost only underwear is in them, which happens to be divided into men's and women's locker rooms.

Anyway, I don't know if it was in mind when this place was built.

The entire sports, office, and living facilities area are all transferred by this veteran cadre activity center.

Restaurants, canteens, and supermarkets are also in this building, and everyone is very used to it.

So after several transformations, the locker room has become very comprehensive, with a laundry room and a dryer, and many people simply wash and dry and hang it in the cabinet over there.

It means that every athlete has a customary personal locker, and many retired veteran athletes certainly store their own things in it.

You don't have to move things around every day, including the archery team.

If it weren't for the strict control of firearms, everyone might want to lock their guns inside, but it is true that some athletes will quietly leave the excess, leftover ammunition there.

And in this locker room, there happens to be no camera surveillance, and the aisle with nothing to see is a blind spot.

There was no need to hesitate at all, the two brothers packed up their things a little and went downstairs.

It's past eleven o'clock in the evening, and the apartment adopts the simplest way to manage access to it, go out and hand over your name tag, hang it on the administrator's wall, and see who hasn't come back at night.

Of course, in view of the fact that everyone came out of the cornices of the sports institute, there are cameras around the apartment building, and if you are alarmed, you will be fired directly.

The shooting center is definitely managed in a stricter way than the football project.

Therefore, there will be no more management in and out, and you can come back in a short time.

It's normal to buy something in the 24-hour supermarket.

The two deliberately dangled in the supermarket, paced into the side aisle, walked into the locker room, and went to the pool and gym at the other end, and they were all too familiar.

The space is very large, and the two or three hundred iron floor-to-ceiling lockers neatly arranged, with not very bright lights, are actually a bit bleak and gloomy in the middle of the night when no one is around.

It felt as if there was a barely cram in every locker and a person standing sideways inside.

Gai Qingyun is still playing the ethereal ghost movie soundtrack there, but unfortunately the prodigal brother is not affected by this psychological suggestion at all.

Walk around quickly.

Civilian cadres generally do not have fixed lockers, and some of them only come for swimming and fitness, and only use temporary compartments the size of express lockers to store mobile phones and keys.

But at least the leaders don't mix with the athletes, and everyone has a conventional division.

The officials are in quieter places in the corners.

The key is still Gai Qingyun, he usually has a comprehensive record of the last week, retrieving the picture of seeing Director Yan by chance, and Yan Qing's own memory impression.

I roughly chose the direction, and gently raised my hand over there to push and shake.

What can be shipped in hundreds of times will definitely have some weight.

Sure enough, there was a cabinet right in the far corner, which was extremely heavy, as stable as a fixing screw on the back.

Yan Qing took out a small flashlight with a strong light, put it on the gap between the side doors and lit it up, and then took off her glasses and put them on the top of the cabinet.

Only that has a few vents on it.

Gai Qingyun directly played the horn from outside: "Bingo!" ”

This is the sound of the slot machine when you win the lottery, and you really won the lottery.

(End of chapter)