Jianyuan Company.

Jiang Yuan sat in a large conference room, and the long table was covered with various documents and reports.

In the corner of the conference room, there was a well-maintained Asparagus plant.

Several Jianyuan staff members were carrying boxes of files and stacking them next to the Asparagus.

Several police officers wanted to help, but Jiang Yuan refused.

Forensic identification is a very private job, it does not require teamwork, and does not require opinions from all sides, at least not during the identification process.

As for the opinions after the identification, if there is disagreement, it's up to me.

Bai Yuequn guessed that the person who sent the photo to himself was the eldest or second eldest of the Yuan family, and Jiang Yuan agreed with this view, so he prioritized looking for the information of the Jianyuan Company.

Of course, this person may also be a servant of the eldest or second eldest, but based on the information currently known, the servants of the two are actually all kept by the company.

This is also a common problem in Chinese companies. In order to save taxes, everyone is eager to use the company's money to reimburse even a cup of Starbucks, and how could they use personal money to support people. Additional expenses of 20% or more, even for the rich, are to be avoided as much as possible.

Or in other words, the richer a person is, the less willing they are to spend this kind of money.

As for whether this person used a printer to print the text, it actually makes no difference, but it reduces the workload for the criminal police.

Because for forensic identification, it is actually simpler to determine which printer the text came from. Common techniques such as yellow dot tracking can directly pinpoint the manufacturer, model, serial number, and printing time of the printer.

With this information, it is much easier to find the person than Jiang Yuan is doing now.

After all, there are fewer printers, and the sales channels are traceable.

Moreover, compared to comparing handwriting, forensic identification of printers is more difficult to refute.

So, unless the case is too small and the police are too lazy to investigate further, or the case is too stupid and does not require high-tech techniques, it is very difficult to commit a major crime without anyone noticing, at least it requires the determination of a Ph.D.

What deliberate thinking, pondering at home, is just a tactic of diligence to cover up laziness.

Studying! Only through studying can one truly commit a sophisticated crime.

And only such a person is worthy of being skillfully exposed by experts from all fields nationwide with thirty years of experience.

"Um, please organize the information of this person."

While several police officers at the scene were bored and scrolling through their phones, Jiang Yuan took out a document.

The senior graphic investigator in the conference room immediately put down his phone and came over to take a look, whispering, "Is this the person?"

"About 50% likely, find a few more documents he signed, and I'll compare them again." Jiang Yuan replied softly. The people from Jianyuan Company had already left the conference room, but everyone was still very attentive on their turf.

The graphic investigator immediately got busy with an "Um".

Several people worked together and quickly found more than a dozen documents from a pile, all with numerical handwriting.

Jiang Yuan selected a few numbers and compared them carefully.

The most obvious feature in the numbers written by this person is the Arabic numeral "7", the horizontal part of it is written with a bend.

In fact, many people have similar habits. There are only 10 characters in Arabic numerals, and the repetition rate is so high that for hundreds of billions of people over a century, any way of writing any number is not rare.

But within a small circle, some features cannot be ignored.

For example, among the thousands of documents in the conference room, only about a hundred people would write the horizontal part of the number 7 with a bend, and based on the curvature of the bend, it can be matched to a unique person.

A small logistics supervisor, a very low-level position, but requires resources from higher-ups.

"It should be him." Jiang Yuan compared a few more numbers written by him, and they were all basically similar.

The graphic investigator looked down at the name, Wang Song, and immediately sent a message to his team leader.

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Then, the graphic investigator asked, "What about the handwriting? The two characters for WeChat, does it match?"

"He wrote it with his left hand." Jiang Yuan said, "He may be worried about revealing his Chinese characters, but it still matches."

For non-dominant hand identification, it is indeed more difficult than dominant hand identification, and it requires a higher level of professionalism from the identification personnel, but overall, it can still be identified.

This is because there are actually many aspects involved in handwriting, such as the layout of the characters, the stroke order, proportional features, and matching features, and many years of writing habits of a person cannot be changed easily.

Seeing that Jiang Yuan was quite certain, the graphic investigator didn't say much.

After all, it's just a matter of asking someone a few questions. For a cultural person who hides his tracks, a few questions will make him panic.

After making a phone call, Lei Xin was very surprised. This case was actually quite complicated, involving several people, so the Criminal Police Brigade in Qianjin District was working on it, as well as the Criminal Police Brigade in Ningtai County, and the police in Qinghe City were providing assistance.In such situations, a new special task force would normally be established, with a new team leader appointed to coordinate the work.

"The First Clan"

But this time, events unfolded so rapidly that even the meeting-prone officials were overwhelmed, resulting in a scattered and disorganized effort.

Unexpectedly, in such a chaotic environment, Jiang Yuan still managed to solve cases one after another.

By the time Jiang Yuan returned to the Forward Area Criminal Police Brigade, Wang Song had also been captured and brought back.

Huang Qiangming had just entered as well. He had just reported to the leaders of Ningtai County and met with several leaders from Qinghe City to straighten out the direction of the investigation. Then he discovered that Jiang Yuan had already found the person who had been passing notes and photos.

"You're really going head-to-head," Huang Qiangming said upon seeing Jiang Yuan, unsure whether to praise him or to offer a reminder.

Jiang Yuan felt a bit excited but humbly asked, "How is this considered going head-to-head?"

"It means that whenever you encounter a tough case, you flatten it out. That's what going head-to-head is," Wu Junhao had also returned, and he quite liked Jiang Yuan's style—it suited his taste.

Huang Qiangming grunted in agreement, "We usually don't take such a hard approach, at least not in the past. Especially for cases like finding someone from a small note, it's not possible to do it this way. Our county doesn't even have a full-time political inspector."

Jiang Yuan asked earnestly, "So how was it done before?"

"Before..." Huang Qiangming recalled, "In the past, we would start by investigating the close associates of Boss Yuan the elder and Boss Yuan the younger. To pull off such a thing, it had to be someone close to them. Considering that, there weren't many suspects to begin with, and we could use political inspection methods to investigate one by one, questioning each to see if there were any slip-ups."

Investigative work, a traditional skill, could become one of the three treasures of an experienced detective, deeply rooted in the national context.

In a society of acquaintances, many secrets that criminals think they have are not secrets at all to those who know them. Daily information is indispensable.

It's like in a village, even without surveillance cameras, it's difficult for a stranger to casually enter.

Although society today is not as based on acquaintances as before, in workplaces or large private enterprises like Jianyuan, where people have been interacting daily for a decade, it is still a society that is as familiar as can be.

By contrast, Western societies do not have this kind of national context and foundation, so their investigative methods do not rely on the process of elimination, not only because of police force and system differences but also due to different social circumstances.

If Jiang Yuan hadn't caught Wang Song, Huang Qiangming's standard approach might also have been able to find the person.

The whole process turned into a massive logic puzzle.

A group of detectives would study the statements of "A said," "B said," "C said," "D said," and in the end, determine who lied and who slipped up.

In the past, other cases could be uncovered in this process as well.

It was like gathering hay to catch rabbits or harvesting wheat to catch fish.

As for Jiang Yuan, his method was akin to mechanized farming, with combine harvesters rumbling forward and automatic balers cutting the grass, regardless of the type, just mowing it down.

"Copy this paragraph ten times, and do it a bit faster," the young police officer ordered with feigned authority in the interrogation room.

Wang Song, a man in his thirties who managed logistics—a cushy job—was not intimidated by the young officer. Glancing at the article with numbers and WeChat, he asked softly, "What if I don't want to copy it?"

The interrogation was still led by Lei Xin, whose teeth were stained yellow. He said with a smile, "Asking you to copy is to avoid wronging you, giving you a chance to help us correct any mistakes. If you choose to give up, you can sign a waiver, and that's fine too."

Wang Song naturally couldn't sign that, so he asked, "How are you going to help me correct mistakes? Aren't you afraid I'll just write nonsense?"

"You can write nonsense if you want," Lei Xin chuckled. "Handwriting isn't about the content; it's about what you write."

"But there's no need to write it ten times."

"We will analyze the relationship between your own handwriting samples and then compare your handwriting with that of the evidence to draw conclusions."

Wang Song hesitated again.

His expression was serious, yet he tried to appear relaxed, slightly contorted.

"Write it, stop dawdling," said Lei Xin, the police captain with yellow-stained teeth, who could tell at a glance if someone was guilty. He spoke with added emphasis.

Wang Song gripped the pen tightly, his palms already sweaty without even writing, his hand trembling slightly, not even sure how to align the pen tip with the paper.

He bowed his head, sweat forming on the back of his neck.