boyutpedia Chapter 309: Surveillance and pursuit (more)
Chapter 309: Surveillance and pursuit (more)
National security investigations are different from police investigations.
They talk about efficiency.
All investigations, investigations, and investigations must give way to efficiency.
All rules and regulations become ridiculous in the face of efficiency.
The past travel route of the blind girl was investigated within an hour.
The other party is blind and rarely goes out.
As mentioned in the plot of Fang Shuoxin's novel.
Xiaoyu said that the world is not very friendly to blind people.
She was a little afraid to face this 'dark' world!
Even if they go out on weekdays, most blind girls go to a fixed place.
Walk out of the community, bus, subway station... Finally, there is a school for the blind!
Schools for the blind too?
Not only there, but also many.
They are all teaching blind people how to adapt to the world.
Tips on how to live without light.
At the same time, it also teaches some abilities that blind people can master.
The route is not long, and the investigation is very simple.
But it is very difficult to find someone.
Because there are too many people in contact with on this road, it is impossible to list everyone as a suspect.
And some of the monitoring that was retrieved was the monitoring of the last one or two months.
Surveillance video, too many places will not keep it for a long time.
But one or two months of monitoring is enough.
How to troubleshoot suspicious persons?
The stupidest way.
Compare all the monitoring to the person who appeared next to the blind girl many times.
For example, Xiao Yu would say after investigation, where is there such a coincidence in this world?
As long as they have appeared in the route of travel, people who have appeared many times beside the blind girl.
It must be listed as a key suspect.
Didn't Xiaoyu fall in love with that so-called 'Dark Dragon'?
Why not investigate this directly?
The national security and police have investigated this point long ago.
The other party is not a fool, even quite smart.
Every time I meet Xiaoyu, I can't track it.
It seems that they are deliberately leaving the scope of 'monitoring'.
Without this IQ, I would have caught him long ago...
Eleven hours.
Xiao Yu, Wang Dong, ten members of the second group, and dozens of local police officers investigated and compared the blind girl's past travel surveillance until...
A suspect appears on video surveillance!
"In the past two months, the blind girl left home once, followed by being untraceable, but once went to a school for the blind. There were three times on the way to the school for the blind, and a suspect appeared next to the blind girl. But it could also be a coincidence!"
Wang Dong said to his little brother while watching the surveillance video.
Twice... Xiao Yu frowned and looked at the man on the surveillance screen.
Twice can be said to be a coincidence, and it is also within the reasonable range of coincidence.
More than two coincidences are generally impossible to be coincidences.
Monitor the video screen.
The man was wearing a baseball cap, with only half of his face visible under surveillance.
The height can probably be inferred to be over, the body is neither fat nor thin, and the shoe size cannot be inferred.
The surveillance camera cannot see below the man's legs.
The process of video shooting is the monitoring of the bus gate.
The blind girl got off at the stop, and the man got off after him.
The second monitoring screen.
Inside the subway car.
This time the entire body of the suspect can be seen.
The height, the clothes are loose and the specific figure cannot be seen, and the shoe size... basketball shoes.
Shoe sizes may be over 44.
Shoes with a height of 44 yards are also within the normal range.
One thing to know is that the basketball shoes themselves are relatively large.
It looks like a size 44, at least one size smaller, which is a normal foot shape.
4 shoe sizes?
Xiao Yu's heart suddenly beat strongly.
He thought of a case.
City C, a murder case in a silver girl's den.
The three victims were executed in the 'old fashion'.
At that time, he had already surveyed the scene, and roughly deduced the shape of the perpetrator from some footprints on the building and the mouth of the caller.
Above, thin, single eyelids, terrible eyes, shoe size between 4 and 4 (abee)... left-handed!
Compare the surveillance video in front of you.
The figure is consistent, the body shape is not sure, whether it is single eyelid or not because it is covered by a hat and cannot be seen.
As for the shoe size 4 to 4... Is there a gap with the suspect's shoe size in the surveillance screen?
No.
match!
Because the man in the surveillance video was wearing a pair of basketball shoes.
The perpetrator of the 'ancient execution' case... how could he wear basketball shoes to commit the crime?
It is inconvenient to wear this kind of shoes to climb a building and enter the building from the roof.
It can be inferred that the shoes worn by the perpetrators at that time should be light and of normal shape.
4 shoe sizes!
The height and shoe size have already been compared, and even the figure can be roughly matched.
According to the monitoring screen, the suspect's clothes are relatively spacious, and he is by no means strong or obese.
Height, skinny, shoe size...
Xiao Yu ordered the man staring at the surveillance screen, "Find him!"
With Guoan's ability to find people, he knows everything.
Not hiding on purpose, one hour is enough time to find someone in a city.
After an hour...
"It should be him."
Wang Dong reported to Xiao Yu with a serious face, "Our people can't find him!"
"what!"
Hearing the news, Xiao Yu smiled instead, and heaved a sigh of relief.
That's right, people who even Guoan can't find for the time being are hiding on purpose.
What are you hiding without committing a crime, who else is he?
Confirm the target, and the rest is to find him and catch him!
It's a pity... Neither of the two monitors can see each other's face.
There is only a figure, and it is impossible to compare a large database.
Therefore, the identity of the other party cannot be found for the time being.
Can't find someone without information?
No, surveillance video reconstruction investigation.
This time it was not the blind girl who was targeted, but the suspected man.
Because whether it is on the bus or into the subway.
Are you going to be on surveillance?
From the monitoring on the bus and subway car, use the timeline, call the city's sky eye monitoring...reverse investigation!
First of all, urban sky-eye monitoring will definitely cover important places such as stations.
The so-called reverse tracing.
It is from these places, a little bit of inversion, like a video playing backwards.
Wherever the suspect appeared.
A little bit backwards, a little bit to find the place where he first appeared.
And the most important point.
Those two appearances of the suspect are suspected of following a blind girl, right?
Is he observing, investigating the blind girl, and then waiting for an opportunity to approach?
Create opportunities to contact blind girls, and then get to know each other and fall in love with each other?
Suppose you go to follow up a person, what's the best way to do it?
Shouldn't it be to observe at the nearest place to that person?
"Where is the blind girl located?"
Xiao Yu narrowed his eyes, "Is he so courageous?"
He has! .