The elevators in the business building are out of service and blocked.
Xiao Yao and Zhao Cheng went down into the elevator shaft.
Check the traces of the elevator shaft and enter the underground parking lot.
Opening the outer door of the elevator, Xiao Yao took the lead in climbing out of the elevator shaft.
Then he pulled Zhao Cheng out of the elevator shaft, and the two stood in the huge parking lot. ?.?????.???
"The surveillance of the underground parking lot has been checked and no suspicious persons were found."
Zhao Cheng frowned, "How did he escape?"
Either he questioned the sniper or he ran away from here.
But he couldn't see what method the other party used.
Xiao Yao observed his surroundings carefully.
He had seen too many similar saucy operations in the past.
The methods of criminals are endless.
There's nothing you can't think of, and there's nothing humans can't do.
Xiao Yao moved his eyes and stared at a surveillance camera not far away.
Through the camera angle, you can find that the elevator door position is covered.
The national security investigator called up the surveillance camera and looked at the surveillance field of view.
Xiao Yao frowned.
The shooting angle can only cover half of the elevator door angle.
It's about one and a half meters high from the ground.
The area 1.5 meters above the elevator is not included in the camera angle.
Through video playback, the day before yesterday, night, 7:15.
The elevator door opened slowly, but no one entered or exited, and no elevator car was seen.
This time happened to be about 19 minutes after the sniper killed the spy Liu.
After watching this surveillance video, Xiao Yao stood in front of the elevator door and looked up.
The door, the upper beam, and above is the ceiling of the parking lot.
You can see thick drainage pipes hanging from the roof.
The Eye of a Hundred Eagles... Xiao Yao stared at the drainage pipes, observed a little, and found clues.
There are signs of climbing!
This kind of suspended drain pipe on the ceiling has not been cleaned all year round, and a lot of dust will fall on it.
People climbing on it will take away the dust.
Closing the eagle eye, Xiao Yao took a deep breath and re-entered the elevator shaft.
Zhao Cheng looked at the little guy calmly, knowing that he had discovered something.
Enter the elevator shaft.
Xiao Yao used both arms to climb inside the well and reached the top of the elevator's outer door.
Under Zhao Cheng's shocked gaze, he crawled out from the upper half of the elevator door like Spider-Man.
Perfectly avoiding surveillance cameras!
After climbing out of the elevator door, Xiao Yao climbed up the drainage pipe outside and climbed up to the ceiling.
Use the thick water pipes and metal frames hanging from the ceiling to follow the traces on them, climb out of the surveillance perspective, and enter the blind spot.
Then he jumped lightly from the ceiling and stood outside a parking space.
Xiao Yao slowly squatted down, opened the Eye of the Hundred Eagles, and observed the footprints on the ground.
After watching for a full two minutes, a sneer appeared on his face.
found it!
Ten minutes later, the information of all the vehicles that entered the parking lot that day was placed in front of Xiao Yao.
Exclude vehicles within the surveillance perspective and focus on investigating vehicles in the surveillance blind spot.
Corresponding to the time when the sniper killed Liu and escaped, we conducted a one-by-one investigation.
A car is locked!
"Miao Xueting, 31 years old, from Beijing, housewife, unemployed, divorced..."
Zhao Cheng took his mobile phone and looked at the car owner's information.
"Not a woman."
Xiao Yao shook his head, "She should just be the person who picked up the sniper. The footprints don't match."
Veteran criminal investigators can tell the approximate height and weight of a suspect through footprints.
Although the suspect's footprints were wearing shoe covers, they were roughly around size 42.
He is between 1.68 and 1.82 meters tall and weighs over 60 kilograms.
The height and weight of the suspect Miao Xueting are completely inconsistent.
"Arrests?"
Zhao Cheng looked at him, "Should we wait?"
Wait, let’s monitor and fish first.
"There shouldn't be anything you can dig out of her."
Xiao Yao looked at the paused surveillance camera, zoomed in, and looked at the driver in a car.
Looking at the suspect Miao Xueting.
Based on his facial expressions and movements, there is a high probability that the other person is an ordinary person.
Through the investigation of Miao Xueting.
This woman is a homebody who doesn't go out or work on weekdays.
Through investigation of his online banking, gas, electricity bill and other usage information, it was found that the other party seldom cooked and often ordered takeout.
Then through the online record investigation, it was found that the other party used mobile phones and tablets to surf the Internet for more than 12 hours a day.
The most commonly used ones are Douyin, Xiaohongshu, browsing some small websites, etc.
Can Guoan find out the other party’s network usage?
This is nonsense.
Many ordinary people may not know about the broadband and wireless network of a certain company you use.
How long have you been online, how long have you been offline, what websites you have visited, what apps you have used, and your data traffic every time.
As long as the IP connected to your port is used, you can see it.
Of course, this is related to citizens’ privacy and telecommunications companies are generally not allowed to view it.
But what is the privacy of what the National Security Bureau wants to investigate?
Let’s use another simple metaphor.
Communication tools used by ordinary people, such as QQ, Douyin, etc. From the time you use these tools, all your chat content, usage records, Internet traces, and agent usage.
