"This woman is Zhou Yang's mother, and the man...has been watching from behind."
In the picture, after Zhou Yang got the money and left, the man basically acted together, and Zhou Yang followed him. Mother walked out not far behind.
Then he bumped into Zhou Yang’s father at the entrance of the supermarket.
Then, following the direction Zhou Yang left, he disappeared from the screen.
“Brother Hui, you can’t see the soles clearly in this video.”
The most important reason why Lu Chuan was suspicious of this man was that the edge wear of his leather shoes was almost the same as the wear of the shoe prints found at the scene.
So, what Lu Chuan wanted to see most was the soles of this person's shoes.
Lu Chuan had done identification and analysis on the shoe prints at the crime scene, and he had a very deep memory of the shoe print patterns.
So, as long as he saw the pattern on the soles of this man's shoes, Lu Chuan could determine whether this man was present at the scene.
However, for Zhang Hui, there is no need to be so troublesome at all.
Zhang Hui, who has handled dozens of cases, has a very deep understanding of the behavioral patterns of criminal suspects.
When he was zooming in on the video just now, Zhang Hui was able to determine from the positions of several people that this man was following them.
The moment Zhou Yang took the cash from his father and turned to leave, the man followed suit.
There is no doubt that this man’s goal is the cash in Zhou Yang’s hand.
After also copying the video and telling him not to delete the original video material, Zhang Hui did not hesitate and dialed Ren Qiang's number directly.
Zhang Hui is a criminal police officer in the second operation team, so it is naturally impossible for him to call Qin Yong directly.
“Are you sure?”
On the phone, Ren Qiang’s voice was low, but a strong sense of anticipation could be heard.
“It’s almost as if the other party is on the run to commit crimes and acts on the spur of the moment.”
“I think we should organize manpower now to investigate this person.”
Although the surveillance inside Haizhou International Apartment is broken, the surveillance on the street is not broken.
There are many businesses around the street and surveillance cameras have been installed.
Now that the goal has been determined, the next step is much simpler.
Ren Qiang immediately organized manpower and rushed to the scene.
"This is the person Lu Chuan discovered. From the surveillance camera at the entrance of the supermarket, Lu Chuan felt that the degree of wear of the other person's shoes was similar to that of the footprints found at the scene."
"We are on the opposite side," Zhang Hui pointed to the hotel where he had just investigated the surveillance: "The surveillance at the gate saw this picture."
On the mobile phone, what was playing was the man leaving Zhou Yang and setting off to follow. picture.
Ren Qiang's experience in handling cases is much better than Zhang Hui's. In fact, when he saw the surveillance at the entrance of the supermarket at 8:30, he was basically sure that this person was following Zhou Yang.
After the other party was hit by Zhou Yang's father, he waved his hands and left without saying anything. Is this normal?
It was suspiciously seen from the surveillance that the other party's eyes were always looking past Zhou Yang's father, looking in the direction Zhou Yang left.
With the target in mind, the subsequent investigation will be easier to handle.
"Zhang Hui, bring someone to bring out all the surveillance cameras along this person's route and find his current traces."
"Yes!"
"Old Sun , go to the picture detective and ask them to do face recognition.”
“Yes!”
Everyone, as excited as an alarm clock that had just been wound up, started to work.
Being a police officer is actually like playing hide and seek when you were a kid.
But in terms of difficulty, it is many times greater.
The greater the difficulty of the match, the greater the sense of accomplishment after finding the other party.
In Lu Chuan's view, the most satisfying moment in arresting a criminal suspect is not the moment when the person is arrested, but the moment when important clues are found, the identity of the suspect is about to be determined, and the person is about to be caught.
It's like the darkness before dawn, knowing it is about to pass, but there is risk.
After Ren Qiang arranged the work, he immediately called Qin Yong to report the progress of the case.
"Progressing... Yes, yes, we will try to find each other in the shortest possible time!" Lu Chuan was not idle either. As an on-site surveyor, it was not his job to participate in specific actions.
From the hotel’s surveillance, Lu Chuan determined the specific location of the other party next to the eight-thirty supermarket.
And the other party didn't just stand there stupidly at that time.
Perhaps in order not to arouse suspicion, or perhaps by chance, the other party was smoking less than three meters behind Zhou Yang's mother.
Smoking...
It’s impossible to smoke away the cigarette butts too.
Moreover, the location where the other party was standing was on the wall connecting the supermarket and another clothing store.
This place is not in front of the store, and the cleaning is not that clean.
Sure enough, Lu Chuan found more than one cigarette butt in the corner by the wall.
But some of these cigarette butts are fresh, and it seems that they have been left there for an unknown period of time.
But it doesn't matter. Since there are cigarette butts left a long time ago, it means that no one has cleaned this place.
Then the cigarette butts left by the other party three days ago should not be missing.
"Master, bring a few evidence bags. I'm at Haizhou International Apartment."
Lu Chuan didn't act blindly. These cigarette butts couldn't escape even here.
40 minutes later, Liu Guodong arrived at the scene with Lao Bai and Yang Sen.
"Any discovery?"
Lu Chuan nodded: "There is a suspicion. The target, Team Leader Ren Qiang, is investigating."
"When I was watching the video, I found that the other party had smoked a cigarette in this place."
"Go back and do a DNA test. I can't say that I can identify the other party."
"Cigarette butts? Haha, okay, let alone three days, we can produce DNA in thirty days!”
Lao Yang was very happy.
As a detective, there is nothing more surprising than finding a cigarette butt at a crime scene.
Because of the special structure of cigarette butts, when people smoke, a large amount of saliva components are left in the sponge of the filter.
The sponge structure of cigarette butts is hollow, which preserves saliva components very permanently.
In most cases, even if the cigarette butt is soaked in water or left out for a long time, DNA identification substances can be extracted from its interior.
As long as it is not burned or scorched by fire, cigarette butts are the greatest tool for extracting DNA.
There were seven cigarette butts in total, and without Lu Chuan having to deal with them, Lao Yang was so excited that he could finish them by himself.
"Wait for my good news, the results will be available in one day!"
Any current detective can do the DNA extraction of cigarette butts.
Lao Yang has done this countless times.
Facts have proved that face comparison is indeed unreliable.
The photo scout has been busy for a long time. Although they have extracted the standard mugshot of the other party, if the other party does not appear in a place where face verification is required, such as an airport, the face comparison will depend on luck.
In the end, it is still the current survey that makes the meritorious service.
"Old Liu! I won the competition!"
Yang Sen took the report sheet and almost jumped with excitement!
Seven cigarette butts, the DNA information of four people was identified.
In the system, only two people have original information.
A man named Sun Miao, from Haizhou, is a thief and a habitual criminal.
But this man was not tall, only 1.63 meters tall, and his age did not match the footprint analysis results done by Lu Chuan.
The other one is Wang Huidong, a native of Beizhou. He was sent to prison for robbery twelve years ago. (End of this chapter)