Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Chen Bing said while eating steamed buns: "There are not many clues left. Half a fingerprint was found on the body of the girl who was killed at the robbery scene."

"Also, a surveillance camera captured the smaller half of the other person's face. There was a mole on the right corner of his mouth."

Lu Chuan gave Chen Bing a piece of soy sauce bone: "Come on, brother, try this. The director said it's good for the soy sauce bone made in our cafeteria."

On the way, I was afraid that Chen Bing would be too polite and would not delete it. I ate it, so I took a piece of it and put it in a bowl.

As he said this, he took the transparent plastic gloves next to him and handed one to Chen Bing, and put it on himself to chew on the bones.

"Brother, I just heard you say that you have fingerprints and half a photo on your phone. Show it to our army."

Chen Jiang suddenly interjected: "Our Army Corps used to be the director of the spot investigation office of our city's criminal investigation detachment. He was also a registered expert in spot investigation in the provincial department."

Chen Bing looked at Lu Chuan in surprise.

When he first met Lu Chuan, Chen Bing was particularly surprised. It was not easy to become the captain of the criminal police brigade at such a young age.

Unexpectedly, Chen Jiang said that Lu Chuan was actually an expert in field exploration and was registered with the provincial department.

So at stake?

As for lying, Chen Bing had no doubts. There was no need for him to lie to a retired detective.

Seeing Lu Chuan nod, Chen Bing took out his cell phone.

Opening the photo album, Lu Chuan saw two photos pinned to the top.

"The first photo of yours is the half of the fingerprint left by the criminal suspect at that time, and the second photo is half of the face captured by the surveillance camera at the gate of the community at that time."

Lu Chuan took off his bone-gnawing gloves, took out a tissue and wiped it before taking Chen Bing's phone.

The first photo is very clear. Although there is only half a fingerprint and it is very interesting, the photo is still quite good.

"Fingerprints were found on the body's skin?"

With Lu Chuan's current attainments in fingerprint identification and analysis, he could tell at a glance what material the fingerprint was collected from.

Chen Bing nodded. He didn't think Lu Chuan saw this. He just said that it was found on the body.

From Lu Chuan's perspective, the fingerprint collection effect was average.

The size of the entire fingerprint is only half that of a normal fingerprint, and the shape is also distorted.

In addition, there are many breakpoints on the fingerprint, so it is difficult to determine the characteristic points. What's more, because only half of the fingerprint is wanted for identification and analysis, it will be very difficult to compare.

But this fingerprint...

But it gave Lu Chuan a familiar feeling, as if he had seen it before, as if he had seen it before.

But it might have been a long time, so Lu Chuan wasn't particularly sure.

Put down the half of the fingerprint first, and the next photo Lu Chuan swiped was the photo of half of the other person's face captured by surveillance.

More than ten years ago, it was good to have surveillance.

Therefore, there is no need to be picky about the quality of monitoring.

The suspect was wearing a hat, and half of his face could be vaguely seen, including a mole at the corner of his mouth, but his specific appearance could not be clearly seen.

Chen Jiang and Chen Bing didn't say anything when they saw Lu Chuan's research photos.

After a while, Lu Chuan returned the phone to Chen Bing.

"I'm quite familiar with this fingerprint. I think I've seen it look like this somewhere. I'll look for the fingerprints I've seen before in the past two days to see if there are any clues." What Lu Chuan said was actually a personal statement. Just helping.

After all, this case is a case in Beizhou City, and whether the other party is in Haizhou City now, let alone others, even Chen Bing did not give an accurate answer.

This person was an air-conditioning repairman back then. Chen Bing's investigation over the past few years found that some clues about the other person were from some air-conditioning companies or communities. He found that the other person did not seem to have changed his career and was still doing work in this area.

After Chen Bing retired, he wandered around some air-conditioning manufacturers or air-conditioning wholesalers and came across this news.

He said that the other party seemed to have come to Haizhou, so he followed him.

But there is no way to determine whether the person is in Haizhou or not.

Therefore, it is impossible for Lu Chuan to send the criminal police brigade to give the other party any help, or even directly help the other party investigate this kind of work.

After leaving Qianlu Chuan, Chen Jiang arranged for a bed in the police brigade dormitory to be used by Chen Bing.

As long as the other party is in Haizhou City, his residence is at the High-tech Zone Criminal Police Brigade.

You can also eat in the cafeteria here.

This is the maximum that Lu Chuan can do.

After returning to his office, Lu Chuan opened the fingerprint identification comparison analysis system.

After logging in to his account, Lu Chuan looked at his studied fingerprints one by one.

The current fingerprint identification ratio analysis system is actually relatively intelligent. In addition to the increasing amount of data inside, every fingerprint studied by the user has a corresponding historical record.

It is equivalent to that each user system will establish a historical database of this user to facilitate its call of fingerprints that have been studied or seen.

Lu Chuan just looked at the half fingerprint that Chen Bin gave him, and it always felt familiar.

It felt like I had seen it before somewhere, but the impression was not particularly profound.

Of course, judging from Lu Chuan's previous fingerprint identification and analysis results, in fact, most of the fingerprints he has focused on have been unable to find their owners and the suspects have been caught.

Therefore, this fingerprint cannot be that of the criminal suspects who have been caught by him, otherwise he would be able to recognize it at a glance.

Although fingerprints seem to be similar, everyone's fingerprints are thick and look like a few lines.

But in fact, everyone's fingerprints are ever-changing and different, just like everyone has a different face.

Similar to fingerprint identification like Lu Chuan, the analysis expert will have an impression of every face he has seen. Although he cannot say that he can remember everything or draw the other person's face, as long as he sees it again, he will definitely know that he has seen this face before. .

Chen Bing's half of the fingerprint seemed a little blurry. Lu Chuan felt that he had seen it somewhere, but he was not a particularly familiar person. He should have matched this fingerprint when comparing key fingerprints...

dong dong dong.

Just as Lu Chuan was concentrating on his work, there was a knock on the office door.

"Team Lu, these are the people who will go to the branch to participate in publicity training next week. Can you see if it's okay and sign it?"

As the captain of the criminal police brigade, Lu Chuan's work was very tedious and busy, so it was unnatural and impossible for him to spend all his time on a fingerprint comparison.

No, I just looked at less than fifty fingerprints and was interrupted.

And Lu Chuan had seen more than 50 or 500 paper figures, so it would probably take a long time to compare them all.

But it doesn't matter, after all, 15 years have passed since the other party's case.

If we can find some clues, it won't take more than a day or two. (End of chapter)