Chapter 170: Yearning

Fifty or sixty burly men stared at Jiang Yuan with burning eyes.

Jiang Yuan pushed up his non-prescription glasses and continued.

Photoshop is a very interesting software.

Girls all like it very much.

Its application is very wide, mainly because its degree of freedom is very high, and it also has great depth.

The stories derived from this, using "from entry to giving up," is a good description.

Of course, ordinary consumers generally only come into contact with its entertainment side, such as retouching pictures, changing scenes, etc., making one that can be posted on Moments in an afternoon, or making one that can send a leader to the hot search in half an afternoon.

Those willing to spend a whole evening can usually graft a celebrity's head onto other strange animal heads.

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

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

It can be used to forge official seals; if used well, the prison sentence can easily exceed three years.

It can also be used to synthesize photos for blackmail and extortion. Shuangfeng, Hunan, developed this into an industry, specifically targeting officials, with far-reaching influence.

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

In the province-wide fingerprint battle, Jiang Yuan used the LV4 Qingdao-style fingerprint analysis method, combined with the LV3 Chongqing-style fingerprint analysis method, and the image enhancement skill to kill all sides.

Solving cold homicide cases one after another actually meant that Jiang Yuan's fingerprint identification skill was far exceeding the average level of provincial experts.

Now, the fingerprints encountered exceeded the difficulty of normal difficult fingerprints.

"For difficult fingerprints, using Photoshop to process them often brings surprises. Photoshop, or PS, is used in our criminal investigation with a focus on ensuring the correctness of the image; there must be certain rules for modification."

Jiang Yuan said this while most of his energy was still focused on software operation.

Practical combat-oriented explanation—practical combat comes first, explanation comes later.

Chen Wenming straightened his back, watched Jiang Yuan's operation for a while, and slowly learned to follow Cao Keyang beside him, changing into a lying posture.

Some things, if you look at them 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 straightened his back to watch, and it was particularly uncomfortable.

Once he lay down to watch, it was much more comfortable.

Cao Keyang's suppressed emotions were released, and at some point, he even revealed a light smile.

"A group of people watching with relish." Chen Wenming looked around, all trace examiners lying flat, and couldn't help but sigh helplessly: High-level technology greatly reduced everyone's enthusiasm for learning.

A trace examiner from the district bureau heard Chen Wenming's words and disagreed. He looked at the projection and said: "Captain Chen, you have to change your angle to see it, and then you'll feel it's interesting."

"What angle?"

"For example, I never knew that fingerprint identification could be done to this extent. It's like a divine skill." The trace examiner from the district bureau was only a little younger than Chen Wenming, and his speech was also calm.

Chen Wenming shook his head again and said: "Dragon-slaying skill."

The trace examiner beside him didn't care and said: "It's cool enough. In the future, when my nephew asks me what I do all day, I'll have something to brag about. I can't be like in the TV shows, acting awesome, but in reality, being nothing."

Cao Keyang nodded when he heard this. Internally, he naturally hoped to become such an identification expert, but saying this kind of thing in front of unit colleagues, especially small superiors, was inappropriate.

He couldn't do it himself, but bragging about his colleague was also a kind of happiness.

Jiang Yuan could be considered their colleague.

Chen Wenming knew even better how difficult it was to learn Jiang Yuan's level of fingerprint identification skill. The PS skill was equally boring and tedious, and later stages also required knowledge of mathematics and related subjects.

Therefore, Chen Wenming sighed again: "It was hard to get half a day of training, and all we did was watch him be cool."

"There are plenty of training opportunities—no, there are plenty of learning opportunities. This is what's called training." Another trace examiner joined the discussion in a low voice.

In the lecturer's seat, everyone wasn't paying too much attention to the specific technical details.

Some things, if you don't understand them in the first lesson, don't think about making up for them in the second lesson.

However, everyone was still interested in the ways and methods of high-level fingerprint identification and the extent that could be reached.

So, at this moment, the number of people whispering and talking quietly in the audience increased, but everyone's smiles also increased.

Chen Wenming saw that the trace examiners beside him all opposed him, so he had nothing to say.

In fact, explaining the frontier capabilities of a technology and discussing its boundaries was originally a training mode.

For example, fingerprint technology now has the ability to extract from clothing, bed sheets, etc., so it must be told to frontline police officers through various means. Otherwise, without the operation of frontline police officers, what is the use of research done in the laboratory?

Similarly, training for fingerprint collection is done by units at all levels every year, just to strengthen training, let the grassroots improve their understanding, and do it better and more.

The frontier expansion of DNA is even more obvious. In the early years, DNA identification could only do blood, saliva, human tissue, and semen. In many places, around 2008, they began to promote sweat. Ten years later, the updated cognition of frontline police officers is that they can try anywhere the suspect has touched.

Today's training, everyone originally participated as a study of fingerprint identification, so the first lesson was desperate.

However, by the second lesson, more and more people began to listen to it as a frontier lecture, which became very great.

After all, people who usually come to give frontier lectures are not actually frontier.

And what Jiang Yuan showed today, in the eyes of a group of trace police officers, could be called aesthetic.

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

Some trace examiners in the front row couldn't help but laugh: "It doesn't look like it at all."

"In fact, it's the exact same image. This can be directly proven. If the suspect's lawyer raises this point, we can do a criminal investigation appraisal... Should we do it? It might take about ten minutes..." Jiang Yuan was polite and paid attention to answering anyone who raised an opinion.

The trace examiner in the front row waved his hand: "Don't worry about me, just follow your own teaching outline."

Jiang Yuan didn't actually have any teaching outline, but seeing that this trace examiner wasn't particularly interested, he said: "Then I'll continue to talk. Um, now it's just a matter of marking the feature points again. This time, we still have to choose a smaller area..."

"Which area to choose specifically, my suggestion is to judge based on the finger shape."

"We have already dug out two cases, and there are two sets of fingerprints for reference. From here, we can actually see a bit of his usage habits."

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

Jiang Yuan mentioned it slightly but didn't say much. After all, today was a lecture on fingerprint identification; it was better not to deviate as much as possible.

Chen Wenming couldn't help but sit up.

He actually used footprint thinking when doing fingerprints normally.

This is a very natural choice. People have 10 fingers—normal people—and in terms of use, there are always some habitual actions, different operation methods, including preferring the left hand or right hand, loving single fingers or double fingers, preferring index and middle fingers, or middle and ring fingers, etc.

It's just that unlike the development of footprint identification, there are no norms and rules for fingerprint usage habits.

Everyone is figuring it out themselves.

Chen Wenming was also figuring it out, but the opportunities to use it weren't many.

At this very moment, he wanted to hear Jiang Yuan's take.

Although the dragon-slaying skill was in a state of having no dragons to kill, absorbing the essence of the dragon-slaying skill to slaughter cattle and sheep was thought to be quite good.

However, Jiang Yuan didn't continue to talk about the footprint thinking of fingerprints.

Because the feature points of the fingerprints had been marked, and sending them to the fingerprint database to run again, results would come out soon.

"Everyone look, after processing like this, comparing it with existing fingerprints makes it easier to get results, because it is a value-assignment system. After processing with PS, its value assignment can be significantly improved..."

Jiang Yuan began to talk about the key points.

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

"Dialing now." Jiang Yuan took out his mobile phone from under the table and said again: "This is not urgent; they are in prison."

The phone was connected, Jiang Yuan reported the situation, and the opposite Criminal Police Brigade Captain naturally gave another round of happy thanks.

Even if the person is in prison, this case is considered solved.

Moreover, the criminal suspect still has to be prosecuted and have his sentence increased, which instead saves the time and energy of arrest.

Jiang Yuan suggested digging deeper into the case, then hung up the phone.

The trace examiners in the audience listened with yearning.

Especially the last part, it was simply like a dream.

A normal Criminal Police Brigade Captain, when encountering a suggestion, usually chews up both the suggestion and the person who made it and spits them out.

Jiang Yuan was a bit accustomed to the politeness of Criminal Police Brigade Captains from other counties, but looking at everyone's expressions, he hurriedly changed to a more serious look and said: "Let's continue the course..."

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's an unexpected situation, let me answer it."

After speaking, Jiang Yuan answered the phone.

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

"That's great, congratulations."

"It's congratulations to us. This case is all thanks to you; you saved a dead case."

"Has the suspect confessed?"

"Not yet, but it should be soon. We found some evidence in his house; zero confession is no problem. Confession is just a matter of time." The Criminal Police Brigade Captain of Miaohe County chatted for a while before hanging up.

Turning his head, the eyes of the whole room of trace examiners were shining.

The long-lost passion rose again, and everyone fantasized about becoming the person who made the call. ===== CHAPTER 171 =====