Police Detective

Chapter 682 is easy to understand (Doudou 316 Silver League plus update 410)

On the way back, Bai Song received another call from Song Suo, asking Bai Song to have dinner tomorrow night.

Bai Song is the leader of the fourth group, Li Yunfeng is the leader of the first group, and Song is in the second group. Li will be on duty tomorrow, so both the fourth group and the second group have time tomorrow night.

Of course, Bai Song was not invited to dinner alone, but all four groups were invited to dinner.

As the head of the institute, Song Suo has four groups and one case handling team. The strength or weakness of these people's cohesion is directly related to the combat effectiveness of the entire institute.

There is a difference between a police station and a police station.

The directors of Jiuheqiao Police Station and Miki Street Police Station may seem to be on the same level, but there is still a gap in status. The Sanmu Street Police Station is considered one of the best in Jiuhe District, and may be directly promoted to the captain of a certain detachment in the future, so after Song was transferred to the top position, he was very motivated and looked forward to good results.

The other three groups have all been invited by Song Suo, and now only four groups are left.

Generally, subordinates should make appointments with their leaders at least three days in advance.

When a leader makes an appointment with a subordinate, it all depends on his mood.

Bai Song agreed wholeheartedly, and then called Ren Xu and asked everyone not to arrange other personal matters tomorrow night and go to the restaurant Song mentioned for dinner.

It doesn't cost much to just eat stir-fried vegetables, but the leader's heart is absolutely necessary.

"By the way, I have to tell you something." Bai Song thought for a while: "Before going to dinner tomorrow night, you find a place to eat three hamburgers to cushion your meal."

"Ah?" Ren Xu didn't understand what Bai Song meant. How come I have to eat a hamburger first when there is a big meal to eat?

"Ah, what? The leader is treating us, and we are not going to sit down and eat together. The leader ordered 12 dishes, and you ate 8 in one go. The leader also had to add a few more dishes for you. Do you think that's appropriate?" Bai Song understood too well. Ren Xu said: "You have to remember what I say, and taste it carefully."

"I understand what you mean."

Ren Xu was still frightened after hanging up the phone. Fortunately, Bai Song reminded him!

Otherwise, after tomorrow, although it is impossible for the leader to wear small shoes for this matter, it will still be very embarrassing.

Police stations are different from large agencies. Leaders particularly like people who work like Ren Xu.

However, if you can leave a good impression on your leadership, your future will always be brighter.

Back in Tianhua City, it was already past seven o'clock in the evening, and Bai Song immediately went to find Liu Shuyuan.

"Why did you call me here? Is there any clue about Zheng Yanwu's murder case?" Bai Song asked hurriedly.

"Do you think of me as a god?" Liu Shuyuan rolled his eyes: "However, there are some related situations."

"Say it." Bai Song lowered his posture and listened attentively.

"I don't have any friends in the public security department in Xiangnan Province, but I have a friend in the government. I sent him documents, and he helped me find someone from the Taxation and Market Supervision Administration Bureau, and he sent me all the materials from Zheng Yanwu's former printing and dyeing factory." Liu Shuyuan took out a large pile: "There are too many. I looked at them for a while and couldn't understand these accounts."

"Okay, let me take a look." Bai Song took the box in Liu Shuyuan's hand. It was quite heavy.

Bai Song looked at these volumes there, and Liu Shuyuan was a little impressed.

The stuff from these companies is simply incomprehensible to outsiders. Experts can judge many, many things through a ledger, but laymen only know 1234567890.

But Bai Song actually taught himself the knowledge of a certified public accountant, and he usually learns such things. He doesn't have time to prepare for the exam now, otherwise he hopes to pass a few of them.

There is still no problem in reading these materials.

Bai Song was reading the materials there, and the large books he had brought from Shangjing City were temporarily placed on the table.

"I can't understand those accounts. I'll have no problem with his books after all, right?" Liu Shuyuan thought to himself and started to look through the books that Bai Song had brought over.

I flipped through one book. I flipped through another book.

again.

Liu Shuyuan began to doubt life.

Are all these books that the police can understand? Are you sure this isn't a book a doctor should read? What the hell!

And there are several books in pure English!

There is another one. Is this in German? ? ?

Is Baisong's law already at this level?

Liu Shuyuan has been working very hard recently, and now looking at Bai Song's back, he is completely depressed.

With this gap, I can't even catch up with a car.

Bai Song watched for more than an hour. During this period, he wrote down a lot of things in a notebook with a pen and did a lot of calculations with a calculator on his mobile phone. Sometimes he frowned and sometimes he was enlightened.

"Any questions?" Liu Shuyuan watched Bai Song close the ordered case file, poured a cup of tea for Bai Song, and handed it over.

Bai Song was stunned for a moment. He had never seen Liu Shuyuan pour tea.

"Don't want to drink tea?" Liu Shuyuan said in a low voice, "How about I pour you a glass of ice cream?"

"No, no, no," Bai Song took the tea cup and pointed to what he had written: "There is something wrong with this company."

"Just before you came, I asked the accountant to take a look, and the accountant said there was nothing wrong with the books."

"There is no problem on the books." Bai Song said, "But there is a problem with the raw materials and output."

"What do you mean?" Liu Shuyuan came closer and felt a little dizzy when he saw a lot of unfamiliar chemical equations.

"Their company has a lot of printing and dyeing products, but most of them are alkaline and cationic dyes. Because there are many types of production and many raw materials are cross-used, there is no way to calculate." Bai Song pointed to an equation on the notebook: "They started producing a reactive dye a few years ago. To be precise, it's called KN-type disazo reactive blue dye, which is a type of vinyl sulfone-type reactive dye. To produce this reactive dye, a chemical is needed , called p-nitroaniline.”

"So?" Liu Shuyuan found that he only understood the word "chemicals".

Looking at Liu Shuyuan's appearance, Bai Song suddenly wanted to tease him: "It is very simple to produce this kind of blue dye. Mix p-nitrophenyl ammonia with water and concentrated hydrochloric acid, then heat and dissolve it. After dissolving, quench with ice, and then add submersible dye at low temperature. Sodium nitrate aqueous solution. In diazotization reaction."

Bai Song talked about the steps in general for almost fifteen minutes.

"What do you want to say to me?" Liu Shuyuan rubbed his temples.

"Actually, what I just said is useless. We just need to know that because the process is very stable, it stands to reason that the ratio of p-nitroaniline and blue dye purchased should be fixed." Bai Song said: "Considering that there will be There are situations such as hoarding of raw materials, and there is no way to give an accurate assessment. However, if we make a rough estimate on a monthly basis, it is obvious that in recent years, too much dye has been produced, which has exceeded what the raw materials can provide. This is It cannot be explained by technological improvement.”

"It's useless for you to talk nonsense." Liu Shuyuan almost complained, but he still held back the words.

Liu Shuyuan endured it and said, "So just tell me that these raw materials may have smuggled raw materials, isn't that enough?

"Wouldn't it be easier for you to understand if I tell you more in detail?" Bai Song didn't feel anything at all, and continued: "These data are too little, we need more data."