Chapter 238 Extreme Tracking

It is not easy to find a person's path, especially when there are several days between them.

Cen Lian plans to start with the truck that has not appeared in their sight before, to determine where Zheng Weiheng got off the truck.

"A total of 67 duplicate users were screened out," Qu Zihan used software to screen out the results, and then handed them to Tang Hua and Qi Yan for verification, "Five of them have a high duplication rate, which I think is a big problem." '

Cen Lian has long mastered the skill of watching surveillance at the same time, mechanically scanning the surveillance video while analyzing the data.

"If there are only five highly overlapping users, it is very likely that they are not him." Cen Lian has a relatively clear understanding of Zheng Weiheng's anti-detection awareness. In addition, this guy has been running the website for many years and is obviously familiar with the current Internet technology. It is a bit like waiting for a rabbit to come to him to expect him to make such a low-level mistake.

"But he can't change his account every time," Tang Hua also began to think about this problem after checking, "Maybe in the low-overlapping account?"

This is temporarily unknown. If you want to catch this person with a strong anti-reconnaissance awareness, although using the account is a way, it is unlikely to accurately locate his IP.

"There are only 67 accounts in total. I can find out all their current IPs and that's it." Qu Zihan's brain, which was about to stop working, decisively chose to use the exhaustive method. Anyway, there are many people in the Municipal Bureau, and at most he can use the human sea tactics to continue the investigation.

Cen Lian agreed with this point of view very much, because it is now impossible to solve the case in a more sophisticated way. No matter what method you think of, you can try it first.

"Good guy, we can't help you with this operation," Tang Hua gave up helping when he saw Qu Zihan start to operate the computer, "We are free now, do you have any arrangements?"

In the office, several auxiliary police officers were also working overtime to sort out documents and complete various procedures, and they were very busy.

This made them seem very idle.

Cen Lian looked at the time and said, "You go and rest first. If we can't catch Zheng Weiheng, we will all have to endure today. Try not to endure it together."

At this time, the sky was already bright, and Wang Yuanteng couldn't hide the fatigue on his face at all. It seemed that he could fall asleep on the desk at any time.

So he agreed with Cen Lian's statement at the first time, "Then I will go to rest first. Call me at any time if there is any situation."

Qi Yan didn't say anything and went out with Wang Yuanteng.

Although Cen Lian didn't say it, they would probably come to change shifts in the afternoon.

Tang Hua accompanied Cen Lian to watch the surveillance for a while, and didn't return to the dormitory of the Municipal Bureau until his eyes could no longer open.

When Lin, the forensic doctor, came back to help and saw that Cen Lian was still awake, he sighed helplessly and took out a few boxes of medicine from his drawer.

"Take some if you feel uncomfortable in your heart or feel that your blood pressure is rising. Take half the adult dose."

Cen Lian didn't expect that he would work overtime to the point where he might need to take medicine.

But now this case really can't be delayed any longer. He had to chew a bag of instant coffee and continue to stare at the surveillance in front of the computer.

"I'll go back and rest first. I have to switch shifts with Yuan Chenxi in the afternoon." Forensic doctor Lin said hello to Cen Lian and left. It can be seen that the laboratory was already busy.

In the office, several auxiliary police officers said hello and went to rest. For a while, only Cen Lian and Qu Zihan were still fighting.

"Tsk tsk, what a good opportunity for men and women to be alone, but it's a pity that there are only two overworked dogs who are about to die suddenly in the office." When Qu Zihan raised his head to move his cervical spine and saw the empty office, he couldn't help but comment.

"You don't want to have an office romance, do you?" Cen Lian used the way of chatting with Qu Zihan to force himself to support his spirit so as not to fall asleep, "It doesn't look like your character."

"I don't know about other offices, but it's impossible in our criminal police team's office," Qu Zihan rubbed his messy and greasy hair, "Look at your shiny police pants, your oily hair that hasn't been washed for at least three days, and then look at my dark circles and pitiful hairline. My best friend has never seen me look like this."

Cen Lian agreed with this.

After seeing their half-human and half-ghost appearance in the office, most people really can't bring themselves to talk about it.

Qu Zihan seemed to have finally discovered something when she spoke, and her whole face was close to the screen, as if she was confirming something.

"It's really something," she tapped the keyboard and threw a screenshot into the group, "The IP addresses of these users when they logged in are a bit close, and they are very far away from the other 40 or so users."

Cen Lian opened the map she sent, zoomed in and looked carefully, and found that these IP addresses were indeed concentrated in the area near the East Second Ring Road.

"This area is really big," Cen Lian pulled out the driving route of the truck and found that the car did pass through an area of ​​the East Second Ring Road, which overlapped with the area on Qu Zihan's map. "But compared to the entire Kang'an City, the scope is still much smaller."

Cen Lian had asked Tang Hua to ask the traffic police department for the surveillance videos of all the cameras on the entire driving route of the truck. After these demarcated areas, the workload was reduced a lot.

"Why don't you get off work first," Cen Lian looked back at Qu Zihan, "I guess it's almost time here."

"That won't work," Qu Zihan refused decisively, "Now is the critical moment for solving the case. If you stay in the office alone, what if you are attacked?"

Although this statement is a bit childish, Cen Lian thought about it carefully and found it very reasonable.

Who knows if the madman Zheng Weiheng will sneak into the Municipal Bureau and stab him.

Although this possibility seems unlikely.

But he didn't force it anymore, after all, his life is still very important.

Qu Zihan made a few calls to the Internet Security Brigade, and then continued to sit in front of the computer without knowing what to do.

Cen Lian quickly pulled the progress bar and finally captured a pair of sneakers flashing by in one of the surveillance cameras.

He was very familiar with this pair of shoes, exactly the same as what he saw when he had synesthesia.

The shoes flashed behind the car without leaving a clear figure.

But it was not a big problem. After knowing where he got off the car, Cen Lian immediately called the police station where the camera was located to get the surveillance video of all the nearby security cameras.

"You're really efficient," Qu Zihan stood up from the computer and walked behind Cen Lian's computer to watch, "Does this pair of shoes have any special features?"

"The shoe prints are quite unique." Cen Lian had already found an excuse.