Chapter 169: Longing

A 50-60-year-old burly man stared at Jiang Yuan with a burning gaze.

Jiang Yuan pushed his flat glasses and continued.

Photoshop is a very interesting software.

Girls like it very much.

It has a wide range of applications, mainly because it has a high degree of freedom and is very profound.

The story derived from it can be well described as from entry to giving up.

Of course, ordinary consumers generally only come into contact with its entertainment side, such as retouching pictures, changing scenes, etc., and those who spend an afternoon can post it on WeChat Moments, and those who spend half an afternoon can send it to the leader on the hot search.

Those who are willing to spend an evening can usually graft a celebrity's head onto the head of other strange animals.

Or reshape a batch of wedding photos, so that the bride and groom and their friends feel at ease as if they are attending someone else's wedding.

But on the other side of entertainment, Photoshop can also be very cruel.

It can be used to remove official seals. If used well, the sentence can be easily exceeded by three years.

It can also synthesize photos for blackmail. Shuangfeng, Hunan, has developed it into an industry that specifically targets officials and has far-reaching influence.

Of course, it can also be used to solve cases and increase the difficulty of solving cases infinitely.

In the provincial fingerprint battle, Jiang Yuan used the Qingdao-style fingerprint analysis method of LV4, the Chongqing-style fingerprint analysis method of LV3, and the image enhancement skills to kill all sides.

The successive solving of homicide cases actually means that Jiang Yuan's fingerprint identification skills are far beyond the average level of provincial experts.

Now the fingerprints encountered are beyond the difficulty of normal difficult fingerprints.

"Difficult fingerprints, use Photoshop to process, there are often surprises. Photoshop is PS. The focus of its use in our criminal investigation is to ensure the correctness of the image, and there must be certain rules for modification."

Jiang Yuan said, but most of his energy is still focused on software operation.

Practical explanation, practical in front, explanation in the back.

Chen Wenming straightened his back, watched Jiang Yuan's operation for a while, and slowly learned from Cao Keyang next to him and turned into a supine position.

If you look at some things in a different way, the emotions are different, and the sense of gain is also different.

Just like Cao Keyang, at the beginning, he also stood up straight to watch, and he felt very uncomfortable.

When he lay down to watch, he felt much more comfortable.

Cao Keyang's suppressed emotions were all released, and he smiled lightly without knowing when.

"A group of people are still watching with relish." Chen Wenming looked around, all the trace inspectors were lying flat, and he couldn't help but sigh helplessly: the high-level technology has greatly reduced everyone's enthusiasm for learning.

A trace inspector from the district bureau heard Chen Wenming's words at this time and disagreed. Looking at the projection screen, he said: "Captain Chen, you have to change your angle to find it interesting."

"What angle."

"For example, I never knew that fingerprint identification could be done to this extent. It's like a magical skill." The trace inspector from the district bureau was only a little younger than Chen Wenming, and spoke calmly.

Chen Wenming still shook his head and said, "Dragon-slaying skills."

The trace inspector next to him didn't care and said, "It's enough to be handsome. When my nephew asks me what I do all day, I will always have something to brag about. I can't be so awesome on TV every day, but nothing in reality."

Cao Keyang nodded after listening. In his heart, he naturally hoped to become such an identification expert, but it was inappropriate to say such words in front of colleagues in the unit, especially junior superiors.

I can't do it myself, but it's also a kind of happiness to brag about colleagues.

Jiang Yuan is also their colleague.

Chen Wenming knows how difficult it is to learn fingerprint identification skills of Jiang Yuan's level. PS skills are also boring, and mathematics and other related knowledge are required in the later stage.

Therefore, Chen Wenming sighed: "It's hard to get half a day of training, but he just looks handsome."

"There are many opportunities for training, no, there are many opportunities to learn, this is called training." Another trace inspector joined the discussion in a low voice.

On the lecture, no one paid much attention to the specific technical details.

If you don't understand something in the first class, don't think you can catch up in the second class.

However, everyone is still interested in the methods and approaches of advanced fingerprint identification and the level that can be achieved.

So, at this moment, there are more people whispering and talking quietly in the audience, but everyone is smiling more.

Chen Wenming saw that the trace inspector next to him opposed him, so he had nothing to say.

In fact, talking about the cutting-edge capabilities of a technology and discussing its boundaries is originally a training model.

For example, fingerprint technology now has the ability to extract it from places such as clothing and bed sheets. It must be told to the front-line police through various means. Otherwise, without the operation of the front-line police, what is the use of just doing research in the laboratory.

Similarly, fingerprint collection training is done every year by units at all levels, just to strengthen training, let the grassroots raise awareness, and do better and more.

The frontier expansion of DNA is more obvious. In the early years, DNA identification could only be done on blood, saliva, human tissue and **. Many places did not start to promote sweat until around 2008. Ten years later, grassroots police officers had a new understanding that any place the suspect had come into contact with could be tried.

Today's training, everyone originally came to learn about fingerprint identification, so the first class was disappointing.

However, by the second class, more and more people began to listen to it as a cutting-edge lecture, and it became very good.

After all, people who usually give cutting-edge lectures are often not cutting-edge.

What Jiang Yuan showed today, in the eyes of a group of trace policemen, was beautiful.

"Well, after processing like this, let's run again." Jiang Yuan was talking about the processed fingerprint image.

The one in the front row couldn’t help but burst into laughter: “It doesn’t look the same at all.”

"In fact, they are exactly the same pictures. This can be directly proved. If the suspect's lawyer raises this point, we can do a criminal investigation appraisal... Do you want to do it? It may take about ten minutes..." Jiang Yuan was polite. Yes, if anyone has an opinion, they will answer it carefully.

But the trace inspector in the front row waved his hand: "Don't worry about me, just follow your own syllabus."

Jiang Yuan actually didn't have a syllabus, but he wasn't particularly interested in the name of the trace inspector, so he said: "Then let me continue, well, now it's just a matter of marking the characteristic points again. This time, we still have to choose A smaller area…”

"My suggestion for which area to choose is based on the shape of your fingers."

"We have dug up two cases, and we have two sets of fingerprints for reference. From here, we can actually tell a little bit about his hand habits."

"Well, we can actually use some thinking about footprint identification here..."

Jiang Yuan mentioned it briefly but didn't say much. After all, today is a lecture on fingerprint identification, so it’s best to try not to go astray.

Chen Wenming sat up involuntarily.

When he usually does fingerprints, he actually uses the idea of ​​footprints.

This is a natural choice. People have 10 fingers - normal people. In terms of use, there are always some habitual movements and different operating techniques, including whether you prefer to use your left hand or your right hand, and whether you prefer to use one finger or two fingers. , like the index finger, middle finger, middle finger and ring finger, etc.

But unlike the development of footprint identification, there are no norms and rules in the usage habits of fingerprints.

Everyone is figuring it out on their own.

Chen Wenming is also thinking about it, but there are not many opportunities to use it.

At this moment, he wanted to hear Jiang Yuan's side of the story.

Although the Dragon Slaying Technique is in a state where there is no dragon to kill, it must be very good to absorb the essence of the Dragon Slaying Technique and slaughter cattle and sheep.

However, Jiang Yuan did not go on to talk about the footprint thinking of fingerprints.

Because the characteristic points of the fingerprint have been marked, if you send it to the fingerprint database for running at this time, new results will come out soon.

"You can see that after processing like this, it will be easy to compare with the existing fingerprints, and the results will be easily obtained. Because it is an assignment system, after processing with PS, its assignment can obviously be improved..."

Jiang Yuan began to tell the main points.

The trace inspectors below were already anxious, and some even shouted: "Call first, call first!"

"We're dialing." Jiang Yuan took out his cell phone from under the table and said, "Don't worry, he's in prison."

After dialing the phone, Jiang Yuan reported the situation again, and the criminal police captain on the other side naturally thanked him happily again.

Even if the person is in jail, the case is considered solved.

Moreover, criminal suspects have to continue to be prosecuted and receive increased sentences, which saves time and energy in arresting them.

Jiang Yuan suggested continuing to dig into the case, and then hung up the phone.

The trace inspectors in the audience listened with fascination.

Especially the last part, it was like a dream.

A normal criminal police captain, when faced with a suggestion, would chew it up and spit it out together with the person making the suggestion.

Jiang Yuan was a little used to the politeness of the criminal police captains from other counties, but seeing everyone's expressions, he quickly changed to a more serious look and said: "Let's continue the class..."

Woo...

The phone vibrated again.

Jiang Yuan glanced at it and hurriedly explained: "It's a call from Miaohe County. I don't know if there is any unexpected situation. I'll answer it."

After speaking, Jiang Yuan answered the phone.

In the earphones, the voice of the Miaohe County Criminal Police Captain was deafening: "Jiang Yuan, thank you very much, the person has been caught."

"That's great, congratulations."

"Congratulations to us. This case was saved thanks to you."

"Did the suspect confess?"

"Not yet. It should be soon. We found some evidence in his home. There is no problem with zero confession. It will only be a matter of time before he confesses." The captain of the Miaohe County Criminal Police Brigade greeted him and hung up the phone after a while.

Turning around, the room was full of traces, and their eyes were gleaming.

The long-lost passion arose again, and everyone fantasized about being the one making the call.

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