Chapter 301 We've been fighting since childhood, he's long been beaten into submission.

"The material is as smooth as gold, as lustrous as grease, and makes a sound like a chime; its interior is like soft, cloud-like silk..."

"Russian material is light, its interior is like sand, and it makes a dull sound like tile... The edges of the blue material are as translucent as ice, and there are water ripples inside..."

Xu Qin muttered these words to herself, as if trying to imprint them into her mind.

Tang Nanyan, however, disagreed.

She felt that Lin Sicheng's explanation was very simple.

But if it were really that simple, how could so many people be scammed by fraudsters?

Just as she was beginning to have doubts, she paused for a moment:

Lin Sicheng turned off the microphone and packed up his laptop. As soon as he stepped off the stage, he was surrounded by a group of forensic center officials.

The saying goes, "Every profession has its own secrets": the few tricks Lin Sicheng taught him sound simple, but in this day and age, just figuring out the microstructure of three types of jade would require at least tens of thousands of experiments and tens of thousands of verifications to arrive at a relatively accurate result.

To give an analogy: imagine there's not paper in between, but a steel plate. And you're given no tools, just a stick; you have to figure out how to drill through the steel plate to find out what's behind it.

Let alone those who were scammed, how many people who make or sell fake jade can summarize it so succinctly?

Those who truly understand this are hoping to make extra money this way, but who would say it out loud?

Lin Sicheng didn't aspire to be a saint. First, he didn't need to, and there was no need to hide it. Second, he thought that ordinary people didn't earn their money easily, so he wanted to catch as many swindlers as possible.

But to the group of technical police officers, he seemed to be radiating light.

Lin Sicheng was surrounded by layers of police officers who kept asking him questions, and Xu Qin couldn't squeeze in at all.

"That's about it. Anything not mentioned is in the materials... As for quality standards, the teachers can summarize them gradually. I'll just say one thing: different internal structures will inevitably lead to differences in transparency, refractive index, and even density and hardness."

"Teacher Lin, could it be that the performance of these three types of jade in the laboratory analysis mainly reflects these aspects?"

Lin Sicheng paused for a moment, then smiled and said, "More or less!"

Some might ask, but the leaders of the technical support team, standing in the middle, say: "The food has already been fed to your mouths, why are you still not satisfied? What, do we have to chew it for you?"

The group of people were speechless.

In my excitement, I forgot that even the thirst for knowledge must have its limits.

Several leaders invited Lin Sicheng to rest in the lounge, but there was no sign of the meeting ending.

In particular, the members of the technical support team surrounded the deputy team leader:

"Director Liu, isn't this Lin Sicheng from the Xijing tomb raiding case?"

"That's him... Didn't you hear the captain introduce him: Director Lin of the Xida Cultural Relics Research Center?"

"That's Lin Sicheng, the one who discovered the uranium-yellow antique-style porcelain?"

"Otherwise what? How many Lin Sichengs are there at Northwest University?"

"Was it him who helped solve the fake jade case in Xi'an, the fake jadeite case?"

"Nonsense, did all that he just said go down the wrong path? Use your brain again: besides him, how many experts would share their most secret techniques?"

The group chattered excitedly, getting more and more excited as they asked questions, chattering like they were arguing.

Tang Nanyan became more and more confused as she listened.

The Xijing Tomb Robbery Case should refer to the Zhang Anshi Tomb Robbery Case, right?

The uranium-yellow antique-style porcelain was probably from that joint operation involving the municipal bureau, customs, and cultural relics bureau, which was instructed by the ministry.

Including the final fake jade case in Xijing, the training department of the brigade had organized officers to study these three cases, and she remembered them all. But she couldn't recall what they had to do with the person she was dealing with today.

Xu Qin sighed, knowing exactly what she was thinking: the branch's training sessions only covered crime patterns and related technologies, barely mentioning specific case details. Tang Nanyan wasn't high enough rank to access crucial information.

She didn't even know the name Lin Sicheng, so she was completely confused.

She thought for a moment: "Do you remember a time when our branch captain always liked to swear at people?"

Upon being reminded, Tang Nanyan immediately recalled: During that period, the brigade held meetings every few days, and each time they returned, the branch captain and deputy branch captain would give them a long face and then berate them from top to bottom.

For those few days, even the flies in the office didn't dare to flap their wings.

Later, the entire brigade organized a study session, and only then did the lower-level personnel learn that a major tomb raiding case had occurred in Xi'an, but the entire organization and planning were carried out in the capital. Funds, stolen goods, and firearms were all transported through Beijing.

To put it bluntly: if it weren't for the efforts of our colleagues in Xi'an, many leaders would have been in trouble.

Some time later, after the case was closed, news came out: it was said that a student from Northwest University went deep into the tiger's den and turned the tide.

Back then, I would often hear Director Xu Qin mutter: "In this day and age, there are still people like this..."

Tang Nanyan's eyes widened little by little: "He's that lone hero?"

Xu Qin nodded: "Yes!"

If Lin Sicheng were just an expert, he wouldn't have excited the heads of several major crime squads that deal with serious crimes, theft, robbery, and fraud, even more so than a group of technical experts.

To put it bluntly: what technical skills do these uneducated bunch know? No matter how authoritative the experts are, it's not really relevant to them.

This is because this expert is not only an expert, but he also does things that most police officers can't do. Having long admired him, I've heard so much about him. Now that I've finally met him in person, I have to pay him a visit.

"Do you know why Xijing was repeatedly praised by the ministry leaders during the year-end summary and commendation? It's because these three cases were handled so well."

"Especially the uranium-yellow antique porcelain and the Zhang Anshi tomb raiding case: such a serious case with such great social harm, yet not a single person died, not a single person was injured, and it didn't even cause any negative impact on society? Tang Nanyan, as a police officer, you should know what this means?"

Tang Nanyan knew, of course, that she was not only a police officer, but also a police officer from a military family.

She moved her lips slightly, muttering to herself, "Because of him, that expert Lin?"

Xu Qin nodded again: "Yes!"

Anyone familiar with the case can foresee how much damage and how severe the impact would have been without Lin Sicheng.

After a moment's thought, Xu Qin glanced at her watch again: "It's only a little past ten, still a long time before dinner. He should be in the lounge right now..."

"The main leader won't stay for long. He will probably be accompanied by the office director, the director of the training department, and Deputy Branch Secretary Yan from the Fifth Branch."

She paused for a moment, then looked at Tang Nanyan, "You're quite familiar with Deputy Branch Secretary Yan, so do me a favor: ask him if Teacher Lin has any free time right now!"

Tang Nanyan was still dazed, and spoke without thinking: "What, invite him to dinner?"

"Eat my ass! We're complete strangers, what excuse do you have to invite them? Besides, even if I wanted to, I'd have to see if it'd even be my turn..."

Xu Qin was both amused and exasperated. "I asked you to ask Professor Lin if I could ask him a few questions. It won't take up too much of his time, ten minutes... oh no, five minutes will be enough..."

He's in his early twenties, and you call him teacher?

Xu Qin usually seems amiable, but in reality, she's arrogant and conceited. Why is she being so humble now, just to ask a few questions?

Moreover, his eyes would light up whenever Lin Sicheng was mentioned, as if he had met his idol.

But when Tang Nanyan thought about what Teacher Lin had done, she suddenly understood...

She took out her phone: "Sister Xu, how about I ask his assistant first? The one standing next to the podium during the training, that's my classmate, from elementary and middle school..."

"Oh, that's great!"

Wouldn't it be more convenient to ask Lin Sicheng's assistant than Yan Wenjing?

He dialed immediately; the phone rang twice before being answered, and Jing Zeyang's voice came through: "Tang Da Niao, what do you want to call?"

Tang Nanyan scoffed, "Jing San'er, you're pretty reckless, aren't you? Getting a beating..."

Before he could finish speaking, Xu Qin patted him on the shoulder. The implication was that if he needed something from her, he should speak properly.

Tang Nanyan wrinkled her nose: "Jing Zeyang, I need your help. Could you ask Teacher Lin if he has time, could our director ask him a few questions? It won't take long, at most ten minutes."

"Oh, you're in training too?"

"Of course, I'll sit in the fourth row. You're standing there like an idiot..."

"Heh, is this how you ask for favors? No way..."

"Fine..." Tang Nanyan sneered, "Don't blame me for bringing Fang Qing to your building to wait for you!"

"Fuck you... Fine, Tang Da Niao, you're awesome!"

He cursed, and then a cold snort came from the receiver, "Just wait!"

About two minutes later, the phone rang back: "Come on up, third floor!"

Tang Nanyan hung up the phone triumphantly: You think I can't handle you?

Xu Qin was surprised that it was so easy and asked curiously, "Judging from your conversation, I thought you two didn't get along?"

Tang Nanyan remained silent.

The friendship we've built since childhood isn't bad, but it's not great either.

With that thought in mind, the two entered the elevator.

In the blink of an eye, as soon as I stepped out of the elevator, I saw Jing Zeyang and his bespectacled assistant smoking at the elevator entrance.

Jing Zeyang stepped back slightly and pointed: "Assistant Fang, that's her!"

Fang Jin smiled and said, "Officer Tang, I'll take you inside!"

Actually, it wasn't far, just next to the elevator. Fang Jin knocked on the door, and when he opened it, he found Lin Sicheng, Yan Wenjing, and the director of the Education and Training Department inside.

After the two went inside, Fang Jin closed the door, came back, and lit the half-smoked cigarette.

After a few days, they had gotten to know each other quite well. Fang Jin half-jokingly said, "Brother Jing, why do I get the feeling that you're quite afraid of this Officer Tang?"

Otherwise, Jing Zeyang wouldn't have made a special excuse to hide; he was probably afraid of running into Officer Tang.

"Afraid!" Jing Zeyang sneered, about to say a few polite words, but when he thought of Tang Nanyan's fierce face, he lost his nerve.

From childhood to adulthood, how many of your peers haven't been beaten by Tang Nanyan?

In school, who among her classmates, younger students, or even those in their first or second year of high school isn't afraid of her?

"That woman is crazy... Don't be fooled by her quiet demeanor and good looks; it's all an act."

Jing Zeyang pointed to the stainless steel ashtray at his feet, "Even something like this, she could punch a dent in it, believe it or not?"

Fang Jin's mouth dropped open: "Impossible, right?"

"What's impossible?"

Jing Zeyang still felt lingering fear. "When we were little, in the summers, while we climbed trees to catch sparrows, she was practicing her boxing. When we went down to the river to catch fish, she was still practicing her boxing?"

"In winter, while we were ice skating and spinning tops, she was still practicing boxing. She just kept practicing and practicing, and all she could think about was building up muscles..."

Fang Jin suddenly understood, suppressing a laugh: "You've been beaten?"

Jing Zeyang didn't say anything, but rolled his eyes.

Let's not talk about when I was a child, but I also went through this again last year: the time I broke up with Fang Qing.

Get this straight, it's Fang Qing who's going abroad, okay? I must be out of my mind to leave Beijing and go with her to become a foreign devil.

So, Tang Da Niao not only loves to meddle in other people's business, but he's also fucking unreasonable...

...

In the lounge, Xu Qin was very humble.

"Teacher Lin, I would like to ask you: what is the fundamental reason for the different internal structures and appearances of these three types of jade?"

This is a highly technical question because it requires destructive analytical experiments, which are not very useful for the police, so he didn't talk about it, and it wasn't mentioned in the materials either.

But if someone asked him for advice, Lin Sicheng would certainly offer his insights: "First, the temperature at which the mineral was formed resulted in different tremolite contents. Second, the different composition of impurities led to structural differences and visual effects..."

"Teacher Lin, please wait a moment, let me write this down!"

Lin Sicheng smiled and said, "Okay!"

When Xu Qin took out her notebook, Lin Sicheng began to explain: "Hetian jade has the highest tremolite content, reaching over 95%, which is the fundamental reason why Hetian jade has a felt-like interwoven structure inside."

Specifically, in terms of visual perception: it refers to what is commonly described as smooth and fine, meaning it has the highest oiliness and the best transparency. Specifically, in terms of tactile feel: when rubbed between the palms, Hetian jade offers the strongest resistance.

"Second, impurities: Russian jade has a moderate tremolite content, around 90%. Because it contains a small amount of graphite, it has a porridge-like internal structure with a noticeable granular texture. In addition, because of its high diopside content, it has the highest whiteness but the worst transparency, which is what is commonly referred to as porcelain white..."

"Qinghai jade has the highest impurity content, reaching about 20%, mostly siliceous stone, which leads to a unique waterline structure inside. Secondly, it contains quartz, so there are occasional stone flowers. It also contains a small amount of Ti (thallium), which causes the color to be grayish-white or duck egg blue... but it has a strong water-like transparency..."

Xu Qin quickly jotted down notes: "Teacher Lin, could you please tell me the fundamental reason for the difference in the content of tremolite and impurities?"

“Of course!” Lin Sicheng replied without hesitation. “Because the characteristics of the surrounding rocks are different: the surrounding rock of Hetian jade is a layer of dolomitic marble, the surrounding rock of Qinghai jade is a contact zone of acidic volcanic rocks, and the surrounding rock of Russian jade is an alteration zone of ultrabasic rocks…”

It was all highly specialized knowledge; in the past, Tang Nanyan would have fallen asleep after just hearing the beginning.

But today was strange: she felt that she could actually understand it?

If she had a teacher like that when she was in school, why would she have joined the army after graduating from high school?

Tsk, I must say, despite his young age, he really has the air of a teacher...

Feeling embarrassed to keep staring at people, Tang Nanyan listened for a while, feeling rather bored.

Yan Wenjing was chatting with the deadpan director of the Education and Training Department. She was too lazy to follow along and could only look around.

Huh, what's this?

On the coffee table were several photocopied sheets of paper, which didn't look like documents, but rather copies from some old book.

The key is the little figure on it: Tang Nanyan recognized it at a glance as a boxing manual because he had been practicing this since he was a child.

Look closer: The essence of the six directions, the four tips as sharp points, the ten forms of beasts, the three sections as weapons, all connected by one breath...

Ha, Xingyi Quan?

It was placed right next to Lin Sicheng; he must be studying it.

But looking up again: delicate features, fair skin and tender flesh, not like someone who likes this?

Just then, Xu Qin finished asking her question, and Lin Sicheng subconsciously looked up, their four eyes meeting.

Ha... that gaze, it's quite aggressive.

Lin Sicheng smiled and asked, "Officer, what's wrong?"

"Oh, it's nothing!" Tang Nanyan looked away and pointed to the few sheets of paper on the coffee table. "I've been practicing boxing since I was a child. I'm just a little curious: I have a book like this at home, it's quite old, but the content seems a little different."

Lin Sicheng was taken aback: What a coincidence!

These past few days, he has been studying the spread and inheritance system of Xingyi Quan after Ji Jike.

The modern genealogy is quite complete, but the crucial part is missing: the middle section, which is the period between the late Qing Dynasty and the Republic of China.

He was also thinking that after the training, he would go to Panjiayuan or Liulichang to inquire.

"Officer Tang, it's a printed copy, right? When exactly was it made?"

"I don't know, my grandfather found it, and it's all in traditional Chinese characters."

Which lineage is it?

"Huh?" Tang Nanyan looked confused.

She only knows how to practice; what does she know about "pulse"?

Tang Nanyan racked her brains to recall: "My grandfather always practiced standing meditation (Zhan Zhuang Gong). He learned it from Mr. Wang Xiangzhai, who practiced Xingyi Quan..."

Wang Xiangzhai?

I remember now, this is Guo Yunshen's apprentice, who served as the head of the Wushu Group of the General Administration of Sport after the founding of the People's Republic of China. In the 1960s and 70s, the health-preserving stance he created was incredibly popular in Beijing.

That lineage is the Guo family of Hebei, which lived during the late Qing Dynasty and early Republic of China, bridging the past and the future.

Lin Sicheng became interested: "Officer Tang, do you still have the book? Can I borrow it?"

Is there anything about an old book that I can or cannot borrow?

"Of course!" Tang Nanyan replied, looking her up and down. "You practice martial arts too?"

"I only practice occasionally. However, I'm currently doing research on martial arts from the Republican era, and I'm lacking materials."

Tang Nanyan didn't hear the second half at all, her eyes lighting up: "What level?"

Lin Sicheng was stunned for a moment.

He then realized that Tang Nanyan's eyes did not hold an aggressive gaze, but rather a curious and inquisitive look.

Is this some kind of martial arts fanatic who, upon hearing that someone practices boxing, wants to spar with them?

Lin Sicheng shook his head: "No level, so I'll just practice slow punches!"

Sure enough: like a light bulb that has been switched off, Tang Nanyan's eyes dimmed instantly.

"Okay, I'll bring it to you this afternoon!"

"No need for that. Officer Tang, just give me an address, and I'll have my assistant pick it up!"

assistant?

Thinking Lin Sicheng was referring to Jing Zeyang, Tang Nanyan gave a forced smile: "Even if Jing Zeyang had three times the courage, he wouldn't dare to come."

Fang Qing has just returned to China and is hesitating about whether to rekindle her relationship with Jing San'er...

"It's not far anyway, and you have training this afternoon, so I can bring you along..." Tang Nanyan took out her phone, "Give me your number, and I'll call you when I get there!"

"Okay, then thank you, Officer Tang!"

The two then took their leave.

After leaving the room, Jing Zeyang was not there; he was probably hiding somewhere. Fang Jin escorted them to the elevator.

Once inside the elevator and the door was closed, Tang Nanyan waved her phone and said, "Sister Xu, aren't I clever?"

Xu Qin belatedly realized: "You got the phone number for me?"

"Of course, Sister Xu, if you want to ask me for advice in the future, you can just call me!"

Xu Qin was both touched and amused: "I thought you'd finally figured it out?"

"Tsk~" Tang Nanyan said with a look of disgust, "Sister Xu, why are you just like my mother? You don't care whether they are a good match or not, you just force them to be together?"

Xu Qin didn't know what to say: "Nan Yan, you're already twenty-four!"

"What's wrong with being twenty-four? There are still six years until you're thirty."

Knowing that Tang Nanyan didn't like talking about this, Xu Qin sighed and didn't bring it up again.

She thought for a moment: "According to Deputy Captain Yan, Teacher Lin won't be staying in Beijing for long, at most until October. It's too late to ask her questions gradually, and it would be too presumptuous to visit her abruptly..."

"Isn't that simple?" Tang Nanyan said nonchalantly. "Haven't he been studying martial arts lately? Just bring him a book every now and then, and you'll have an excuse to ask him for advice."

Hmm, that's a really good idea.

But where can I find it?

"They're everywhere in Panjiayuan, and they're not expensive, just ten or twenty yuan a book! Tomorrow's the weekend, I'll go with you!"

What if I buy a fake one?

"Where can you find genuine ones?" Tang Nanyan said matter-of-factly. "But we're not experts like him, so it's normal to buy fakes. As long as the sentiment is there, that's what matters..."

Xu Qin was both amused and exasperated: This brat, if you say she's stupid, she's incredibly eloquent when it comes to interpersonal relationships. If you say she's smart, she's just clueless when it comes to matters of the heart?

"Okay, let's go tomorrow!"

As they were talking, the elevator arrived at the first floor.

Seeing the two of them exit the sedan chair, Jing Zeyang sneaked inside.

Thankfully, I didn't get caught by that crazy woman...

Back in the lounge, Yan Wenjing and the director had already said goodbye. Lin Sicheng and Fang Jin were lying on the coffee table, studying the photocopied boxing manual.

Upon seeing Jing Zeyang, Lin Sicheng half-jokingly asked, "Brother Jing, do you and that Officer Tang have some kind of grudge?"

Jing Zeyang was startled: It's definitely not because Brother Yan is being nosy, Brother Yan isn't that free.

But Tang Nanyan and Lin Sicheng had only just met, so it was even more impossible for them to talk about these things.

"Cousin Lin, how did you know?"

Lin Sicheng laughed: "It feels like she grits her teeth whenever you're mentioned!"

Jing Zeyang snorted: "Mind your own business!"

He briefly recounted how his ex-girlfriend wanted to go abroad, he didn't want to go, and took the initiative to break up with her, only to be beaten up by Tang Nanyan.

Fang Jin looked at him strangely: "Brother Jing, you didn't fight back?"

Jing Zeyang's personality doesn't seem quite right, does it?

Jing Zeyang stammered for a long time, then said, "I can't beat them..."

Fang Jin almost burst out laughing, and Lin Sicheng found it even stranger: they had clearly been fighting since they were children, and he had long since been beaten into submission.

Jing Zeyang knew very well: if he dared to resist, he would only suffer even more. As the saying goes, discretion is the better part of valor…

Thinking Lin Sicheng wouldn't believe him, Jing Zeyang spoke and gestured: "Cousin Lin, do you remember when I asked you last time: how many people could you take on if you mastered your qigong? You said you could take on four or five without a gun... That woman really could take on four or five..."

Jing Zeyang pointed to his nose: "If four or five of me came, she wouldn't even be out of breath after hitting them..."

Lin Sicheng was startled.

If it were a man, like Squad Leader He, let alone four or five, even seven or eight like Jing Zeyang wouldn't be a problem if he were empty-handed.

But for women, it's really quite impressive.

Of course, it's also because Jing Zeyang was too weak; at such a young age, his body was already weakened by wine and women...

Lin Sicheng only asked casually and did not delve into it further, instead turning his attention to studying the boxing manual.

Jing Zeyang asked listlessly, "After the training this afternoon, where are we going tomorrow?"

“Let’s go to Panjiayuan!” Lin Sicheng pointed to several sheets of paper in front of him. “It would be best if we could find a few related boxing manuals and study them in more depth…”

Jing Zeyang's eyes lit up: Panjiayuan is great.

He had been thinking about how to get Lin Sicheng to take him there again, but he had never had the nerve to ask...