The Ningtai County Bureau appeared particularly quiet.

By six o'clock in the afternoon, a large number of men and women wearing shiny trousers had already joined the flow of people leaving work.

There were no pickpockets on the bus, and everyone quietly watched the men and women in trousers and the people wearing shorts, heading home.

Jiang Yuan rode a boring scooter, like a middle-aged man, leaving the parking lot and merging into the crowd, as if an ordinary social animal, heading home.

Today was another day with only a small unsolved case.

There was a sense of satisfaction, but not particularly satisfied.

It was like eating hot pot with only plain broth, feeling only eighty percent full.

It tasted good, but there was always something missing.

In short, it was a big appetite. These cases that could be solved in two or three years always felt unsatisfactory.

Other related departments probably felt the same. For example, the police officers at the Investigation Center would procrastinate during the interrogation of these criminals, and the prosecutors would treat it as routine.

The higher-ranking police officers couldn't seem to find the enthusiasm to solve homicide cases, sometimes even dragging on and not finding the culprits.

It could only be said that it was fortunate that Jiang Yuan was a technician, otherwise, he would be annoyed by the troubles of solving cases.

For several consecutive days, the Criminal Police Brigade had been in this relaxed posture.

Like a water buffalo, when there was no work to do, it would bury its body in the water and release bubbles, only exhaling.

Jiang Yuan actually wanted to solve another unsolved homicide case, but after comparing two fingerprints for three days and not finding a match, he felt helpless.

In this peaceful atmosphere, Jiang Yuan felt as if he had returned to the state when he first joined the Criminal Police Brigade, looking at the green plants.

The police station seemed to have noticed everyone's leisure and quickly pulled out several planned projects.

First and foremost was fingerprint skill training.

Several counties each sent a forensic examiner to arrive at the Qinghe City Bureau on time. When they arrived at the dormitory, they were thrown into the conference room with a book each and began studying.

In the disciplinary forces, as long as the leaders wanted, they could make the training very serious.

Ningtai County sent two people, Jiang Yuan and Wang Zhong.

Wang Zhong was a forensic examiner who participated in training all year round. Although his progress was slow and limited, it was through this method that Comrade Wang Zhong managed to maintain a level of 0.9, ensuring the normal operation of fingerprint work in Ningtai County.

The forensic examiners of Yan Ge's generation rarely came out for training anymore. Employees over the age of 35 were in the mature period of their careers, which meant that from this point on, apart from salary increases, their skills and abilities were basically fixed.

Various training activities also did not like these disobedient old-timers. Everyone agreed and sent out and received only young people.

Jiang Yuan, on the other hand, participated in the fingerprint skill training as a lecturer.

In fact, a large part of the reason for this fingerprint skill training was Jiang Yuan.

For training, there must first be a teacher.

In the past, Qinghe City would invite fingerprint experts from outside to give lectures for similar training. Although the cost was not high, it was not easy to invite people.

In this day and age, the transparency of information is getting higher and higher, and the pyramid shape of experts is becoming more and more obvious.

Low-level experts are not willing to come out and make a fool of themselves, and high-level experts are in high demand.

Qinghe City is just a prefecture-level city in Shannan Province. In terms of ranking among cities, its reputation is not prominent, and its funding is not abundant. Moreover, the city bureau's training is not only for fingerprint work.

Over the years, Qinghe City has basically only maintained the minimum level of fingerprint training. The training content mainly focuses on fingerprint collection.

The foundation of fingerprint comparison is fingerprint collection. Each county and township collects a certain amount of fingerprints each year, which seems to have no direct use, but in fact indirectly stabilizes social security.

However, the quality of fingerprint collection is not high, which has always been a problem for everyone.

The main focus of Qinghe City Bureau's training is also in this area.

Jiang Yuan looked at the training outline in the forensic examiner's office of the city bureau, feeling somewhat silent.

How to improve the quality of fingerprint collection... this topic is actually more about management than technology.

"The textbooks are outdated, and we haven't had time to update them. You don't have to follow the textbooks." Cao Keyang, the forensic examiner of Qinghe City Bureau, said cautiously.

It can be hard to make great work when its stolen from "pawread dot com".

During the fingerprint battle, ten unsolved homicide cases were solved in one fell swoop. This kind of record was renowned wherever it went.

Other detectives could console themselves because they were in different branches, but Cao Keyang, who was also a forensic examiner, didn't have as many outlets to release his emotions.Jiang Yuan, despite being young and from a lower county, was more important to Cao Keyang than the other experts from the province. This was because he was a local police officer, and given the current mobility of police officers, Jiang Yuan might have to stay in Ningtai or Qinghe City for his entire life. They would have more opportunities to interact in the future.

Jiang Yuan didn't think too much about it. Seeing Cao Keyang's good attitude, he flipped through the textbook and tentatively asked, "So, can I talk about whatever I want instead of following the textbook?"

"The main focus of our training is still fingerprints. The attendees are all forensic experts from various places," Cao Keyang quickly defined the scope, afraid that Jiang Yuan would deviate too much.

Jiang Yuan was a bit confused. "Are there other textbooks?"

Cao Keyang hesitated for two seconds. "The available textbooks are the ones on the market... You can talk about anything you want. Just give a casual talk."

At this point, Cao Keyang was actually looking forward to it. Honestly, he wanted to hear about fingerprint identification, which was a second-class skill in forensic science. Perhaps a casual talk would better reflect Jiang Yuan's thoughts and ideas.

"A casual talk, huh?" Jiang Yuan wasn't afraid. After thinking for a moment, he said, "Then I'll talk about practical fingerprint identification."

The skills he possessed were more inclined towards practical application, and it was also the area he was most familiar with during his work.

"Practical application is good." Cao Keyang nodded repeatedly and said, "Should I publish it on our official account? The official account of Qinghe City Bureau said they would give us a spot to publish an article."

Jiang Yuan agreed with a "good."

Cao Keyang confirmed again, "What aspect of practical application do you want to talk about? Is it about current cases, cold cases, or specific crime scenes?"

"Let's talk about cold cases. It's not easy to find current cases at the crime scene," Jiang Yuan answered after thinking.

Cao Keyang responded and quickly sent a message.

At this time, he still hadn't realized the specific meaning behind Jiang Yuan's words.

The next day, Jiang Yuan arrived at the small lecture hall of the city bureau.

In China, departments and provincial bureaus do not handle cases. They are purely administrative bodies.

City bureaus are divided into two types. One type handles cases, which is a recent trend that meets the requirements of decentralizing police forces. However, there are still a considerable number of city bureaus that do not handle specific cases.

Like the Qinghe City Bureau.

As for the specific cases that occur within the jurisdiction of Qinghe City, they are handled by the district and county bureaus.

If they are not practical, they naturally become theoretical.

Organizational bureaus like the Qinghe City Bureau are more active in organizing training activities.

The bureau also has a dedicated small lecture hall, which is like a small tiered classroom with corresponding teaching facilities. Meetings and parties can also be held there.

Jiang Yuan was led to the lectern and sat down. Cao Keyang approached and asked, "Do you want to use a PowerPoint?"

"Just project it directly onto the computer screen." Jiang Yuan brought his own laptop and placed it on the table.

This laptop was also an old high-performance version provided by the criminal investigation brigade.

Cao Keyang helped adjust the cables and then stepped aside.

There were already more than forty people sitting in the small lecture hall. Some were from the county bureau, some were from the district bureau, and there were also forensic experts from the city bureau. In addition, some places even sent ordinary police officers to receive training.

In fact, ordinary police officers receiving training was the highlight of the city bureau's training. For example, police officers from some police stations were responsible for collecting fingerprints. Before taking on this position, they might only know how to use tape to collect fingerprints.

Jiang Yuan also noticed that there were quite a few non-professional police officers present. He whispered, "Are there non-professional police officers?"

Cao Keyang understood what he meant and said, "It's fine. We have several sessions. It's great for you to talk about practical application and show other police officers what practical fingerprint identification looks like."

Cao Keyang imagined that Jiang Yuan would present his own practical cases.

He was very interested in this.

Every fingerprint expert dreamed of one day solving a high-profile case.

Even someone like Wang Zhong, a level 0.9 forensic expert, who spent his days searching through databases, also dreamed of this. He knew his own abilities were insufficient, so he resorted to searching the databases.

On the other hand, someone like Jiang Yuan, who had actually solved high-profile cases, was like a professional dream come true for forensic experts. The fingerprints he dug out from the database were almost like a professional dream for the forensic experts.

If this profession had dreams, this would be it.

Jiang Yuan was already sitting at the lectern, and it wasn't easy to adjust the lecture plan anymore. When Cao Keyang stepped down, Jiang Yuan cleared his throat and said, "Let's begin."

The audience started applauding obediently.

Jiang Yuan smiled and looked at the microphone and the screen. "Since this is my first time giving a lecture, I want to start with a practical case. We can discuss the problems encountered while working on it."Jiang Yuan started the software and the intranet, and said, "I think, fingerprints are like doing problems, like doing math problems. Well, let's first find a typical problem to try..."

As he spoke, he selected a fingerprint.

The trace examiners who were familiar with fingerprint work began to understand at this point. Was he going to compare fingerprints on the spot?

Cao Keyang was even more confused. Didn't we talk about "practicality"?

There's a big difference in meaning between "practicality" and "practice".

Moreover, if you compare fingerprints on the spot, what if they don't match?

What if the fingerprint is not in the database?

Have you ever thought about these problems?

Just as Cao Keyang was shouting in his heart, Jiang Yuan slowly spoke:

"Let's talk about the technique of choosing fingerprints, like why I chose this fingerprint. First of all, it's a slightly difficult fingerprint. If it's a fingerprint with no difficulty at all, then there's no need to consider it, it's definitely not in the database..."

"Secondly, the difficulty of the fingerprint, approaching one's own limit, is also a good choice, which is also conducive to one's own improvement. And it can maximize the possibility of matching fingerprints."

What Jiang Yuan said was not nonsense. Since he acquired the skill of fingerprints, he has clearly felt the improvement in proficiency. Although it is much slower than the system, if he persists for a few years, he should be able to achieve something.

In this, Jiang Yuan consciously found the most useful thing was to push the limit in doing fingerprints.

The police officers in the small lecture hall were calm. After all, it was just words, and there was not much stimulation.

At this time, Jiang Yuan began to mark the characteristic points.

"Let's do it once and see." Jiang Yuan casually marked a dozen characteristic points, which took only a minute or two.

In the lecture hall, the whispers that were originally there had long since disappeared.

(End of this chapter)