Chapter 309: Surveillance and Pursuit of the Murderer
National security investigations and police investigations are different.
They emphasize efficiency.
All investigations, investigations, and tracing must give way to efficiency.
All rules and regulations become ridiculous in the face of efficiency.
The blind girl's past travel routes were investigated clearly in one hour.
The other party is blind and rarely goes out.
As mentioned in the plot of Fang Shuoxin's book.
Xiaoyu said that this world is not very friendly to the blind.
She is a little afraid to face this "dark" world!
Even if she goes out during the day, the blind girl mostly goes to fixed places.
Out of the community, bus, subway station... and finally the blind school!
Do the blind have schools?
Not only that, but there are quite a few.
They are all teaching the blind how to adapt to the world.
How to live without light skills.
At the same time, we also teach some skills that blind people can master.
The route is not long, and it is very simple to check.
But it is very difficult to find someone.
Because there are too many people on this road, it is impossible to list all of them as suspects.
And some of the surveillance that was retrieved are from the last one or two months.
Surveillance videos are not kept for a long time in more than 240 places.
But one or two months of surveillance is enough.
How to check suspicious people?
The dumbest way.
Compare all the surveillance with the people who appear many times around the blind girl.
If Xiao Yu is checked, he will say, where is there such a coincidence in the world?
As long as he appears on the route and appears many times around the blind girl.
He must be listed as a key suspect.
Isn't Xiao Yu in love with the so-called "dark dragon"?
Can't we investigate this directly?
The National Security Bureau and the police have already investigated this.
The other party is not a fool, and is even quite smart.
Every time he meets with Xiao Yu, it is impossible to track him.
It seems that he deliberately leaves the "surveillance" range.
Without this IQ, he would have been caught long ago...
It took a whole hour.
Xiao Yu, Wang Dong, a team of members, and several local police officers investigated and compared the blind girl's past travel surveillance until...
A suspect appeared in the video surveillance!
"In the past two months, the blind girl left home 31 times, 22 of which could not be tracked, but 9 times she went to the blind school. On the way to the blind school three times, a suspect appeared next to the blind girl twice... There is suspicion, but it may also be a coincidence!"
Wang Dong said to his brother while looking at the surveillance video.
Twice... Xiao Yu frowned and looked at the man on the surveillance screen.
The two times can be said to be coincidences, and they are also within the reasonable range of coincidences.
More than two coincidences, generally speaking, are no longer coincidences.
Surveillance video screen.
The man was wearing a baseball cap, and only half of his face could be seen in the surveillance.
His height can be inferred to be more than 180, and his figure is neither fat nor thin, and his shoe size cannot be inferred.
The surveillance angle cannot see the man's legs below.
The video shooting process was monitored at the door of the bus.
The blind girl got off the bus at the stop, and the man got off after that.
The first surveillance screen.
Inside the subway.
This time, the suspect's whole body can be seen.
Height of 180, loose clothes, and no specific figure can be seen, shoe size... basketball shoes.
The shoe size may be more than size 44.
180 height and size 44 shoes are also within the normal range.
One thing to know is that basketball shoes themselves are large in size.
If the foot size is 44, it should be reduced by at least 2 sizes to be a normal foot shape.
42 shoe size?
Xiao Yu's heart suddenly beat strongly.
He wanted to report a case.
City C, silver-selling women's den murder case.
Three victims were "executed by ancient methods".
At that time, he had investigated the scene and roughly deduced the body shape of the perpetrator from some footprints on the building and the mouth of the person who called the police.
Over 180, thin, single eyelids, scary eyes, shoe size between 40 and 42 (aefc)... left-handed!
Compare with the surveillance video in front of him.
The body shape matches, the body shape cannot be determined, and whether it is single eyelids cannot be seen because of the hat.
As for the shoe size of 40 to 42... is there a difference with the shoe size of the suspect in the surveillance video?
No.
It matches!
Because the man in the surveillance video is wearing a pair of basketball shoes.
How could the perpetrator in that "ancient execution" case wear basketball shoes to commit the crime?
Wearing such shoes to climb a building and enter the building from the rooftop is inconvenient in itself.
It can be inferred that the perpetrator wore shoes at the time, which should be light and of normal size.
42 shoe size!
The height and shoe size are different after comparison, and even the body shape can be roughly matched.
In the surveillance footage, the suspect's clothes are relatively spacious, and he is definitely not strong and fat.
Height, thin, shoe size...
Staring at the man in the surveillance footage, Xiao Yu ordered, "Find him!"
Guo An can find people, and those who understand will understand.
It's not intentional hiding. It takes more than an hour to find someone in a city.
As a result, an hour later...
"It should be him."
Wang Dong reported to Xiao Yu with a sullen face, "We can't find him!"
"Ha!"
After hearing the news, Xiao Yu smiled back and breathed a sigh of relief.
That's right, even the National Security Bureau can't find anyone for the time being, so they are hiding on purpose.
If you haven't committed any crime, what are you hiding? Who else is he?
After confirming the target, the remaining task is to find him and catch him!
It's a pity...the two monitors can't see each other's face.
Only body size cannot be compared with large databases.
Therefore, it is temporarily impossible to check the identity of the other party.
Can't find someone without information?
No, surveillance video reconstruction and troubleshooting.
This time, the target was not the blind girl, but the suspected man.
Because whether it’s getting on the bus or entering the subway.
You have to appear in the surveillance, right?
Monitoring from buses and subways, using the timeline, calling the city’s sky eye monitoring...reverse tracing!
First of all, urban sky eye surveillance will definitely cover important places such as stations.
The so-called reverse tracing.
It is from these places that we push back bit by bit, just like playing a video in reverse.
Any place where the suspected man has appeared.
Go back a little bit and look for the place where he first appeared.
And the most important thing is.
The suspect 놅 appeared twice, and he was suspected of following the blind girl, right?
Is he observing and investigating the blind girl, and then waiting for an opportunity to approach?
Create an opportunity to come into contact with a blind girl, and then get to know each other and fall in love?
Suppose you want to follow up on a person, what is the best way?
Shouldn't he appear at that person's nearest place to observe?
"Where is the blind girl?"
Xiao Yu narrowed his eyes, "Is he so brave?"
He has! .
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