Chapter 1346 The surprise brought by Lu Chuan
"That's him!"
Lu Chuan has seen nearly 1,000 people with foreign characters, and the comparison between the criminal suspect and these people has become increasingly clear.
After one glance, he only saw the other person walking three or four steps. From such a long distance, he immediately identified this person as the suspect.
"Bureau Lu, are you sure?"
Qin Jun, director of the Investigation Office of the Criminal Investigation Detachment of the Qingzhou Municipal Public Security Bureau, has been helping Lu Chuan. In addition to Qin Jun, there are several other people from relevant offices and some middle-level people here.
There are the most people on Lu Chuan's side.
Among these 500 people, there are those who work in offices within the agency, those who have not yet graduated from the police academy, or those who have just been interns, and some interns who have not been regularized, etc.
After all, just watching videos requires meticulousness, so most of them are lesbians.
Everyone has been fighting here for about a day and a night, and finally we have an important clue.
Originally, Qin Jun and the others were not qualified to object to Lu Chuan's judgment, but this case was too big.
Not only were weapons robbed at the Dongfang construction site, but the other party's purpose was also very simple and direct, to steal the year-end bonus from the mine.
Moreover, two people were killed and two were seriously injured. This case can be said to be a huge one so far.
The only thing that can be gratifying is that the robbery has not leaked out of Qingzhou. The criminal suspect is still in Qingzhou. This is a place where all the police officers can breathe a little relieved. If this mine robbery happened elsewhere, it would simply break the sky. .
After all, no matter what, if this case reaches Qingzhou City, it will be over. Don't spread it any more, otherwise the entire leadership of the Kyoto City Public Security Bureau will probably be dismissed.
Lu Chuan did not show any impatience with Qin Jun's doubts.
"It's definitely him!"
Lu Chuan pointed to the video on the screen: "You can see that when he walked, he had a slightly different facial expression, which matches the characteristics of the surveillance video we found at the construction site. The most important thing is that this person's left foot was injured. He The distance between lifting the left foot and lowering the step is slightly shorter than the distance between lifting the right foot and lowering the step, about less than one centimeter, and the time is about 0.1 seconds faster.”
In fact, the suspect himself may not know this subtle detail, but for Lu Chuan, who has advanced skills in footprint identification and analysis, this gait is like a lighthouse in the sea.
Whether theoretically or practically, each person's gait is actually unique. You can't find any two people in the world whose gait, stride length, and step angle are exactly the same.
In layman's terms, some people walk with their toes touching the ground first, others with their heels touching the ground first, some people walk with their shoulders to the right, and some people walk with their shoulders jumping up. Some people also walk with their bodies tilted to the right, and some people walk with their bodies scurrying forward.
The location of the center of gravity of the footprints left by each person's walking is actually different. Everyone has their own characteristics. From the perspective of footprint identification analysis, any one's footprints can identify who this person is. Not a suspect.
Of course, from a practical point of view, it is difficult to completely identify a person based on his footprints. Because footprint identification is very difficult. Although everyone's footprints are different, the difference is very small. Unlike fingerprints, each fingerprint is unique.
This is why the identification analysis of footprints is not as widely used as the identification analysis of fingerprints in the process of criminal investigation.
Of course, another important reason is that there are too few people on JD.com’s footprint identification and analysis team.
At present, in most criminal investigation detachment scenes, the investigation and criminal police basically know what kind of shoes were worn and what their numbers are for footprint identification and analysis.
As for analyzing the occupational, physical, and pace characteristics of criminal suspects through footprint identification, relatively few people across the country may not be able to find many of them.
This is why the Qingzhou City Public Security Bureau arranged 500 people here. Lu Chuan just asked everyone to find all the people who encountered the foreign character, because the characteristics of the foreign character are relatively obvious and can be seen by ordinary people, let alone the police. Or a current police academy student.
But for the specific comparison, Lu Chuan needs to take part. Although Lu Chuan will be more relaxed if others compare, if it is missed, it will be completely over. So many people have worked so hard to compare. In the end, people were left out because their skills were not up to par and their abilities were not up to par. Then the work of so many people would have been in vain.
After identifying the suspect, which was equivalent to getting the suspect's facial features, Lu Chuan immediately called Li Donglin.
"Director Li, the suspect left and changed his clothes after committing the crime at the Dongfang construction site. We found the surveillance video of the other party without disguise. Now I will send the photos to you to see if we can come over to the Dongfang construction site. Identify and find this person.”
Lu Chuan himself still preferred that this person had worked at Dongfang Construction Site, otherwise he would not be so familiar with Dongfang Construction Site.
"Great!"
This book was recently updated in ##六@@九@@书@@!! Updated!
Li Donglin was still at the crime scene in Dongshan Square, and he was very excited when he heard the good news from Lu Chuan. The most important thing in this case now is to identify the suspect and then arrest him.
After all, the other party had snatched so much cash at the mine last night so quickly after robbing him of dangerous goods. No one could guarantee whether he just disappeared or whether he was still ready to continue having sex.
Therefore, the most urgent need on Li Donglin's side is to find out the identity of the criminal suspect in the shortest possible time and then arrest him.
Although the pixels of the surveillance video that captured the suspect are not particularly high or high-definition, you can still clearly see the facial features of the suspect, making it easy to identify him.
Moreover, Lu Chuan can enhance the image.
After taking the screenshot, Lu Chuan spent more than ten minutes processing the image. The suspect's facial features are clearer, and there is no big difference from ordinary photos. Lu Chuan directly sent the relevant photos to Li Donglin's mobile phone.
When Li Donglin saw that Lu Chuan finally sent the image, he immediately transferred the relevant image information to the deputy director of the Qingzhou Municipal Public Security Bureau.
"Director Qin, please do some hard work here and screen all the personnel at our Dongfang construction site. Everyone who has worked before will see if anyone knows this person."
"Okay, I'll arrange it myself!"
(End of chapter)