Siheyuan: Returning from studying abroad, with extraordinary understanding

Hearing this, Lin Changqing knew that Liu An knew nothing about chemistry.

I can only use traditional methods, fortunately the materials are relatively common.

"Just prepare the materials and I'll make it for you." Lin Changqing reported the materials needed.

Liu An did not hesitate and immediately went out to ask someone to prepare the materials.

Then, he asked someone to untie Lin Changqing.

Lin Changqing is a little thin, and there are no thick calluses on his hands and knuckles, so it can be concluded that he is not a martial artist.

In Liu An's eyes, he could beat ten people like this!

He was not afraid that Lin Changqing wanted to destroy the note. If he destroyed the note, it would be enough to prove that there was something wrong with Lin Changqing.

After getting to know him, he had a little understanding of Lin Changqing's character. Although he was so calm and composed when facing him, Lin Changqing was, after all, a person who was very afraid of death.

Judging from the situation of Lin Changqing's capture, if he was a trained enemy spy, he would not have revealed such a big flaw.

In fact, after the interrogation, Lin Changqing's suspicion has been mostly eliminated. There is still some information that needs to be confirmed. If there is no problem, he will be cleared of suspicion.

Liu An had already made arrangements for these.

Finally, the heavy handcuffs were undone. Lin Changqing stood up, stroking the marks on his wrists with his hands while moving his body.

After the pain in his wrist eased a little, he tidied his clothes.

He did not complain. He was still very weak and did not want to cause any trouble.

At this time, he longed for the golden finger even more.

If I knew martial arts, I would not have suffered so much. Instead, I would have arrested the person directly and sent him to the security department.

"Are you okay?" Liu An asked after seeing Lin Changqing tidy up.

"It's okay!" Lin Changqing replied indifferently.

Then, the two started chatting again.

Basically, Liu An was asking the questions and Lin Changqing was answering them.

Lin Changqing understood that this was an alternative "interrogation" because they were just asking about his basic situation, and he answered truthfully.

However, he did not show off his knowledge or say how great he was.

As they chatted, the two became closer.

Liu An found out Lin Changqing's basic situation in less than ten minutes.

He had a low level of education, and although he knew that Lin Changqing had returned without graduating normally, he could feel that Lin Changqing was several times more knowledgeable than him.

"Comrade Changqing, you just said that the ports in Eagle Sauce and Hong Kong Island have more people flowing into them than our Tianjin Port. Are they more crowded?" Liu An was very curious.

"No, there are a lot of people, but it's not as crowded as Tianjin Port!" Lin Changqing answered truthfully.

"How is that possible?" Liu An couldn't imagine how so many people could avoid crowding!

Lin Changqing said seriously:

"I don't need to lie to you. They manage the port and have a set of standardized procedures, so they can do it naturally."

"What is the standard process? How much do you know? Can you tell me about it?"

Liu An was so excited that he grabbed Lin Changqing's hand.

Staring at him with shining eyes!

"Hiss!" How could such strength be so strong? Lin Changqing frowned slightly, he was hurt by the scratch.

"Ah? I'm sorry I hurt you!"

Liu An then remembered that he had used too much force when he grabbed Lin Changqing.

He immediately let go and looked at Lin Changqing awkwardly.

"It's okay, it's actually not that bad!" Although his hand still hurt, Lin Changqing did not complain.

There is no need to be petty about other people's subconscious and unintentional actions.

"Let me tell you what I know about the port management system and standard procedures."

Regarding management, I, Lin Changqing, have not done in-depth research, but I have read a few books. Combined with my memory from later generations, I can offer some suggestions.

"Okay, go ahead and sit here and talk!"

Liu An pulled Lin Changqing to the interrogation seat and said.

"report!"

Just then, a soldier interrupted their conversation.

"Report, the materials are ready!"

Seeing the two men looking at him, the soldier continued to report.

"Now that the materials have been delivered, Changqing, you should make that reagent first."

"As for the management issues, we'll talk about it when we have time."

Liu An knew that deciphering the note was the most important thing.

"it is good!"

Lin Changqing didn't waste any time. After the soldiers put the materials away, he started to make the reagents.

Liu An and the soldiers delivering the materials fell silent and watched Lin Changqing's actions.

The soldier was very puzzled when he saw that his section chief was very familiar with Lin Changqing.

Isn’t Lin Changqing a suspect?

How did you clear yourself of suspicion so easily?

However, even though he was confused, he did not ask.

The section chief is right in front of you, all you have to do is follow his orders.

Because they had no basic knowledge of chemistry, although Liu An and the soldiers were watching Lin Changqing's production process, they did not understand what Lin Changqing was tinkering with.

After a few minutes, Lin Changqing stopped what he was doing and released a blue reagent separately.

Then he looked at Liu An:

"Chief Liu, it's done."

This is the only reagent that can hide the writing and make it colorless and odorless.

Others will have some odor.

"what?"

Lin Changqing's words brought Liu An back to his senses.

He couldn't believe that it was just a matter of tinkering with it.

"Changqing, are you sure there's no problem?"

Liu An was still a little worried because the blue reagent would change color once the paper was soaked.

After changing color, the note is likely to be useless.

At this time, he hesitated.