Chang Qingwu saw that Jiang Yu was very tired, and she didn't speak, reading the documents on the side, although she said that she had already gotten off work, but in this position, she had never said anything about getting off work, and sometimes, she was even at work in her dreams.

When he arrived at the hospital, Jiang Yu was like a regular alarm clock, he didn't need to dance and call often, he had already opened his eyes and looked out of the car door.

"Here we are." Chang Qingwu's voice was very low, as if he was worried that if his voice was a little louder, it would disturb Jiang Yu's dream.

Jiang Yu smiled: "Well, let's go." ”

The two people got out of the car one after the other, and the two policemen who followed behind also got out of the car and followed Jiang Yu to the hospital monitoring room to get the monitor.

On the way there, Jiang Yu learned that these two policemen, an old policeman has been a policeman for more than 20 years and has rich experience in investigation and counter-investigation, this old policeman is called Qian Lindong, and the other female policeman is a master of computers, called Sun Lingling.

Although the two of them have heard of Jiang Yu's medical skills, they don't take Jiang Yu to heart, one is that Jiang Yu is too young, and the young one is not like a respected Chinese medicine doctor, and on the other hand, it is also because Jiang Yu has been on the news frequently recently, which makes the two of them doubt whether this so-called famous doctor is true.

But thinking about Liu Xuebin's attitude towards Jiang Yu, the two of them had to suppress the doubts in their hearts and followed Jiang Yu into the monitoring room.

There were still a few security guards in the monitoring room who didn't get off work and were chatting, and when they saw Jiang Yu coming, their faces changed slightly, and they immediately stood up from the sofa.

Jiang Yu did not blame these security guards, but said to the person in charge tonight: "You guys go out first." ”

The head of the security guard glanced at Jiang Yu and went out with a few other people.

After the security guards walked out, Jiang Yu said to Sun Lingling: "This is the monitoring room of the hospital, and there are comprehensive high-definition cameras here. ”

Sun Lingling put the computer on the desktop and began to connect with the monitor, and soon, she retrieved the surveillance video footage from the top floor.

Jiang Yu watched Sun Lingling's fingers tapping rapidly on the keyboard, and his eyes kept looking at the computer screen, as if he had been integrated with the computer, it seemed that this Lao Liu was really unambiguous, and the people he introduced to him were all the elites in the team. This actually proves from the side how much attention the top attaches to this matter.

Soon, Sun Lingling slammed the space bar to freeze the picture on the computer. And then keep zooming in, zooming in.

Jiang Yu took a step closer, looked at the screen on the computer, nodded, and said very firmly: "That's right, it's that woman!" ”

The picture on the computer is the woman who was hit by a strong man that afternoon, and her slightly bulging belly also shows this from the side.

Since the opening of the drug rehabilitation center, there may be curious people who come here to take a look, but there will never be a pregnant woman who has died here, so in the surveillance video, this woman is like a unique plum blossom, and she is suddenly found out.

Sun Lingling nodded and asked again, "Dean Jiang, are you sure this person is that woman, right?" ”

Jiang Yu nodded, although he couldn't see his facial features clearly, but judging from the results of the investigation, there was only such a pregnant woman that day, so it could only be the pregnant woman who disappeared.

Chang Qingwu stepped forward to take a look, and found that the woman in the picture, her facial features were not very clear, and she could only see it roughly, although she had found this person in the surveillance video now, but such a vague impact was tantamount to looking for a needle in a haystack.

"Is there no way to restore the facial features?" Chang Qingwu frowned slightly and asked.

Sun Lingling's fingers tapped twice on the keyboard, took a screenshot of the woman in the video, and then opened the software and put it in.

Chang Qingwu glanced at Sun Lingling strangely, not knowing what she meant by doing this. Sun Lingling didn't explain, just focused on work, staring at the computer.

Jiang Yu took a step forward and explained: "This is a method similar to DNA scanning, you can't find the same two sets of DNA in this world, and there is no way to find two identical people, even if they are twins, there will be subtle changes, I think Officer Sun is looking for similar people in all the surveillance, and then locking this woman." As long as the woman was in the hospital, whether it was a year ago or two years ago, as long as the video is still there, it can be found. ”

"So amazing?" Chang Qingwu couldn't help but say softly.

Sun Lingling, who was originally working seriously, couldn't help but turn his head and glance at Jiang Yu, looking at Jiang Yu's eyes was different from just now, and his tone was even more enthusiastic: "Yes, this technique can make it easy for us to lock in repeat offenders." ”

To put it simply, this is a bit similar to a function in Jack Ma's father's Taobao, as long as you can upload a picture, you can find the product you are looking for.

This method of finding people in the surveillance video is the same as the principle of finding goods in Jack Ma's big data, but this technology is more accurate.

People in the police force call this technique a needle in a haystack, but it is not in vain, but one by one.

Since the introduction of this technology, there is no longer a need to query and monitor the fugitives one by one, but only need to put the big data in a database, and then take a screenshot of the fugitive's photo, and the fugitive can be found in the database.

"That's it!" Sun Lingling tapped the keyboard gently, and dozens of photos appeared on the desktop in an instant. The earliest one shows a year ago.

"This woman was here a year ago, too?" Jiang Yu sat down and looked at the woman's action time, except for the fact that this woman had been here a year ago, until recently, she had not appeared around the hospital frequently, but because she had not entered the hospital, the pictures taken were blurry.

Qian Lindong's eyes also fell on the timeline of this woman, except for one appearance a year ago, this woman has not appeared again, and she has not appeared around the hospital frequently until recently, obviously, this appearance is with a purpose.

"What about the strong man? Did the strong man find it? Jiang Yu can't understand why this woman has never appeared in this hospital since she appeared once a year ago, and this woman has never entered the hospital once, which means that this woman is not here to see a doctor.

So what the hell is she here for? On this point, it is worth pondering.

Sun Lingling concocted it in the same way and found another photo of a strong man, the interesting thing is that this strong man only appeared in the monitoring of the hospital that day, in addition, he never appeared from the hospital again, so to speak, is there actually no relationship between these two people, but by mistake, this strong man bumped into a pregnant woman?

Sun Lingling glanced at Qian Lindong, Qian Lindong was an old man after all, and calmly analyzed: "The time when this pregnant woman appeared is really too coincidental, it doesn't look like she accidentally broke into this drug rehabilitation center, and then was bumped into, I think this is like a well-designed fairy jump, Dean Jiang, what do you think?" ”

Jiang Yu frowned and said to Sun Lingling, "Officer Sun, can you intercept the video of that pregnant woman alone?" ”

Sun Lingling was stunned for a moment, not understanding why Jiang Yu did this, but still said: "Yes, but it may take a while to intercept all the videos she has appeared in the past few days." ”

"No problem, Officer Qian and I will go out to buy food for you, you sort it out slowly first."

Sun Lingling nodded: "Okay, I'll sort it out first." ”

As he spoke, he began to devote himself to work.

Jiang Yu and Officer Qian went out to buy food together, leaving Chang Qingwu and Sun Lingling in the monitoring room.

Sun Lingling put all her thoughts on taking a video, and when Chang Qingwu saw this, she took out her work and began to get busy.

Jiang Yu and Officer Qian went out of the hospital, that is, the restaurant, he was familiar with this place, took Officer Qian to a small restaurant, packed four or five meals and walked back, on the way back, Jiang Yu asked Officer Qian: "Officer Qian, you have a lot of experience, why do you think this woman has appeared around the hospital frequently these days?" ”

Officer Qian pondered for a moment and said, "Well, generally a premeditated person frequently appears somewhere, and we judge that this person is stepping on the spot. ”

"Stepping on points?" Jiang Yu's brows furrowed slightly.

"Yes, but according to the timeline compiled by Xiao Sun, if this person appeared here a year ago, then why did he only come once at that time, but this time he came so many times? So I have another consideration in mind, that is, this woman is pregnant and plans to come here to be hospitalized, so she comes to the hospital again and again, because she wants to go on a field trip. ”

Jiang Yu nodded, this is possible, but there is obviously a big loophole in this answer: "Since she is here for a field trip, why don't you enter the hospital?" And, after she was hit by a strong man, she just left? ”

It's also so unusual.

Qian Lindong pondered for a moment and asked rhetorically, "What does Dean Jiang think?" ”

Jiang Yu smiled: "I'm more inclined to your first statement now, this person is here to step on it." ”

It's just that for some reason, a year ago, the project was suddenly terminated.

"Come to the hospital to step on the point, what does this pregnant woman want to do?"

What can you have in a hospital?

Jiang Yu looked at Qian Lindong, this question is very critical, come to the hospital to step on it, what is there in this hospital, is it for that scene?

It's just to create the result of the show, to push the drug rehabilitation center to the forefront, but if that's the case, then why hasn't another person ever appeared?

There are many doubts......