National Forensic Doctor

The next day.

The weather is high and the air is crisp.

Feed and grow strong.

Petting the dog.

During working hours, Jiang Yuan went to the office area of ​​the Economic Investigation Brigade.

Wei Zhenguo arrived in about time and met him at the door.

"You're so early." Wei Zhenguo said cheerfully.

He was quite willing to help Jiang Yuan. He even felt that it was rare to be able to help Jiang Yuan, so he was extra active.

Jiang Yuan smiled like a student and said, "Leave a good impression on others."

"Actually, no need. Besides, we are also helping him." Wei Zhenguo said before leading Jiang Yuan inside, smiling all the way and greeting everyone.

In the office area in the morning, there were police officers coming and going, all of them staring at Wei Zhenguo, and someone would ask questions from time to time.

Fortunately, the economic investigation police officer came out to greet him, which saved at least two groups of questioning time.

"Let me introduce, this is Li Suigong. The deputy captain of our Third Economic Investigation Squadron." Wei Zhenguo said, mocking himself to adjust the atmosphere: "Just like me."

Li Suigong smiled: "What else can you call me like deputy captain? Forensic doctor Jiang needs no introduction. I've heard his name for a long time..."

"Let's just watch the movie." Wei Zhenguo laughed twice, feeling that it was not suitable for small talk.

Li Suigong then led the two of them into the office, and while turning on the computer, he said: "You should know the basic situation of Eucalyptus. We have just made a record of the victim. Now we are waiting for the news from the Criminal Division Center in Changyang. .”

"Do you use fingerprints to confirm your identity?" Jiang Yuan asked.

"Generally not. Because we can't find anyone." Li Suigong explained: "The difference between this kind of contact-type economic case and criminal cases is that the criminal suspect can be contacted in the early stage. It depends on what method is used to identify him. identity of."

Jiang Yuan nodded as he listened. It was true. In criminal cases, we usually don't know who did it and we have to find someone to come out.

Economic cases are different. In fact, you know someone has done it, but you just want to confirm someone's true identity.

"We usually identify people through DNA and photos. DNA is more accurate and faster. For photos, we use facial recognition and then use the portrait card to find the person directly."

When Li Suigong said this, he looked at Jiang Yuan and said: "Now the DNA and photos have been sent to Changyang City, but they are still stuck and have not been processed. We cannot continue here until they are processed."

When Jiang Yuan heard about photos and facial recognition, he immediately became energetic. Z asked: "How should you process your photos?"

"As long as it meets the requirements for facial recognition."

“What are the requirements for facial recognition?”

"It means clear facial features, like a mug shot, are the best. Of course, if the general conditions are not met, the matching rate will be lower. The clearer the facial features, the higher the matching rate."

"Where does it match?"

"The main thing is the face bayonet." Li Suigong pointed out the window and said: "Just like the vehicle bayonet, many cities now, especially high-speed rail stations and airports, have face bayonet. When the time comes, use our It will be easier to find the suspect by comparing the photos you have with the photos taken by face mounts in various places."

In fact, it is a static version of face recognition.

It is not easy to identify the people inside when the crowd is moving.

But it wouldn’t be easy to take a photo of everyone passing by and then compare the photos.

Facial recognition and portrait mount are such a simplified idea.

Jiang Yuan basically understood it and said, "Can you show me the photos you have here?"

Li Suigong hesitated for a moment and said, "Just take a look. This photo was also taken by your Criminal Division Squadron. They are all surveillance photos."

With that said, Li Suigong found a few photos from the computer folder.

Jiang Yuan looked at the photos on the screen. They were all photos taken by a high-definition camera. The image clarity was quite good. If the human eye was used as the basis for discrimination, it would not be a problem to see the face clearly.

"Isn't this clear enough?" Jiang Yuan asked without understanding.

"Facial recognition mainly looks at the face. Moreover, if we do it clearly here, the probability of recognition will be higher. Otherwise, it will be thrown into the blacklist and there will be no news for a long time, and this clue will be useless. "What Li Suigong said was very practical.

Jiang Yuan nodded slowly. The eucalyptus seeds were not big to begin with. If they were sent to other provinces and cities for storage, they could only wait quietly. It has to be recognized by the system and confirmed manually before it will be reported here.

Momo Huhu, it’s difficult for everyone.

If a false alarm really breaks out, I will be the only one who is tired.

Therefore, we must do this first. The definition of your own face is high enough, making comparison easy.

Jiang Yuan thought of fingerprints.

Fingerprint comparison, on the one hand, is the fingerprint of the suspect, and on the other hand, the accuracy of the fingerprint collection is required. The level of fingerprints collected in Ningtai County has never been high. We really need to think about this aspect in the future.

Jiang Yuan's divergent thoughts stopped as soon as they dispersed, and his eyes focused on the picture in front of him again.

"You just said that the pictures were all sent to Changyang City? Can you show me what the finished product they made looks like?" Jiang Yuan asked again.

He could actually see piles of folders with different names on hand, but it was obviously not good to do so without the owner's permission.

Li Suigong glanced at Wei Zhenguo with a wry smile, and then said: "Your request is still a set one. Okay. I happen to have an old criminal here, and the criminal later made the news. I'll look for it for you."

He took the mouse again, picked it up, and released a new picture.

Sure enough, it was a mug shot.

"Did the Provincial Department's Picture Investigation Team do it?" Jiang Yuan asked while watching.

"Yes. Even if this is done very well, it is because the eucalyptus is relatively large. I specifically told the other party to strengthen it a second time." Li Suigong sighed as he spoke.

Ningtai County does not have its own reconnaissance team, so it can only ask for help, and this part is often the most emotionally draining part.

Jiang Yuan nodded.

With comparison, he understood.

What the picture detectives do is simple and simple, which is to extract the suspect's headshot from the surveillance screen or photo and store it separately.

If the resolution of the avatar meets the requirements, this can be used directly. In most cases, this obviously cannot be the case.

Therefore, the second step of processing is to enhance the image, remove the noise points that should be removed, and repair the areas that can be repaired.

Jiang Yuan has also seen the level of picture scouts in the provincial department, which means LV2 is dissatisfied.

As mentioned before, if you are really good at making images and developing face mounts, you will gain face and dignity.

"Let me do this picture." Jiang Yuan had already prepared to take over the job. Just now he just wanted to see what the specific requirements were.

Li Suigong looked at Jiang Yuan and Wei Zhenguo with some suspicion.

Wei Zhenguo's face was calm and he said with a soothing expression: "Second-class merit."

"Okay, then how can I give you the photo?" Li Suigong stopped talking when faced with "second-class merit".

There are actually quite a few people with second-class merit among the criminal police. With the configuration of the Ningtai County Bureau, one can come around every year or two.

However, it is quite rare for the Criminal Science and Technology Squadron, or technicians, to get second-class merit.

Li Suigong wasn't sure where Jiang Yuan was strong, but since he dared to take over, he didn't mind copying and pasting it.

Jiang Yuan looked at the picture and said, "You put it on the intranet, and I'll do it directly on my mobile phone."

"On the phone?" Li Suigong was surprised.

"I'll use the computer on my mobile phone to do it, wait a minute." Jiang Yuan had installed the relevant software earlier.

And just to enhance the clarity of the face, this requirement is indeed not high.

Ordinary people can actually operate it even after a few days of training.

For example, in the provincial department's picture reconnaissance team, not everyone can reach the level of LV2. What ordinary team members do is actually operating software and doing step-by-step work.

Jiang Yuan sat next to him and completed the image enhancement in a few minutes.

He didn't use any special methods, it was basically fully automated by the software.

The retrieved image was put back into the intranet and opened on the computer. As expected, the existence of several levels was already clear.

"What you did... is really good." Li Suigong's eyes lit up.

"Can this be sent over?" Jiang Yuan asked.

"Of course, the clarity is enough, quite enough." Li Suigong replied repeatedly, and sat down and said, "Wait a moment, I will send the picture to the blacklist library."

Jiang Yuan and Wei Zhenguo then sat next to them and waited.

Li Suigong was worried that the two of them would be bored. While working, he said: "The current blacklist database includes high-risk personnel, special personnel, and those submitted by different units. It is quite complicated, but the efficiency is pretty good..."

"As long as the suspect passes the face checkpoint, will the police be alerted?" Jiang Yuan asked.

"It's almost the same meaning. Those who pass through the bayonet will be captured, and a reminder will be given when the comparison is made. Then it will be manually identified here, and then it can be submitted." Li Suigong said: "Generally, as long as the initial position is determined, it will be easier to find later. Human.”

"That means we still need to get there later."

"Not necessarily. For example, if the face checkpoint at the airport in Changyang calls the police, and then confirms that the person has boarded the plane, then ask the police at the destination to cooperate. Of course, we usually send people there ourselves." Li Suigong smiled.

Wei Zhenguo smiled understandingly, and the economic investigation brought back money.

Li Suigong quickly finished the matter, clapped his hands, and said: "Forensic Doctor Jiang, um, I don't know if you are still busy here."

"You're not busy, just say it." Jiang Yuan heard Xian Zhiya's intention.

"Well, I'm a little embarrassed, but I have a lot of pictures here. Can you help me deal with them?" Li Suigong is now a person who believes in "second-class merit".

Jiang Yuan agreed immediately and said: "If you want to process it in large quantities, I have to go back to the office to do it."

"No problem, no problem. Should I upload it to the intranet now?"

"Okay." Jiang Yuan agreed and returned with Wei Zhenguo.

Li Suigong diligently sent the two of them out and said, "If there is any news about Guzi, I will inform you!"