What Xiao Li draws is a small institution that is not complicated. The main structures are gears, springs and cement nails.

In the beginning, the cement nail is at the position of the first tooth of the gear. The connecting spring is "live". When the wrecker came, the cement nail was overwhelmed by the wrecker.

When the wrecker passes. The cement nail bounces up under the force of the spring and snaps into the second tooth of the gear. This tooth is "dead". Cement nails will "stand" very well.

But when the train really overturned, I don't know what the reason was, it was probably a problem with the gears, which caused the cement nails to be "shot" out by the spring. It's not arranged, it's an accident.

Professor Yuan declined Liu Pengcheng's invitation to lunch, saying that he would go back to continue his Labor Day holiday. However, he promised that after the case was solved, they could get together together, and he was also very interested in this case.

Seeing off Professor Yuan, Liu Pengcheng and Lao Gao returned to the office, Lao Gao took the drawings left by Xiao Li and said, "How did you figure it out!" ”

Liu Pengcheng said with a smile: "How is it, do you have a count in your heart?" ”

Lao Gao sighed: "Hearing Professor Yuan say this, I don't count it in my heart, I think these few goods," Lao Gao pointed to the materials placed on Liu Pengcheng's table; "No one has that much ability."

Liu Pengcheng nodded: "In terms of ability, the most likely is Xiao Zeng, but he is a technician in Group B, and he is full of safety responsibilities." Even if he can't get used to looking down on Lao Wang, he can't die with him! Lao Gao, in this case, it is impossible to take the technical route, and this drawing can probably only be used as evidence in the future. ”

Lao Gao said: "Liu Bureau, what should we do next." ”

Liu Pengcheng said: "This case has basically been solved so far. In fact, thirty percent of this case is being solved, and seventy percent is being tried. I have a hunch that when the criminal shows up, we'll all be surprised! ”

Lao Gao was just about to speak, when Li Gong from the technical room walked in: "Liu Bureau, Gao Bureau." This is the comparison of the samples. ”

Liu Pengcheng asked with a smile: "Looking at Li Gong's expression, is it compared?" ”

Li Gong said with a smile: "Compared with each other, the sample we collected on the iron fence of the cartoon train is completely consistent with the composition of the No. 2 sample sent by the High Bureau, and it can be used to determine consistency." ”

Liu Pengcheng said: "It's still too tender. ”

Lao Gao hurriedly took the test report and widened his eyes: "This, this, this is impossible!" Is there a mistake! ”

Liu Pengcheng said: "What do I say, when the results come out, everyone will be surprised." ”

Liu Pengcheng's face became serious: "Go and bring people back to me." In addition, that Master Wang and the safety officer Xiao Wu detained me for the crime of liability accident, and the procuratorate will say that it is enough to be guilty and not enough to be guilty. ”

Lao Gao nodded, didn't say a word of nonsense, turned around and left.

Liu Pengcheng saw that Lao Gao had gone out, went to the refrigerator and took out a bottle of Coke, opened it and took a sip and put it on the desk, opened the notebook and continued to write his materials.

An hour later, Interrogation Room 6 of the Substation.

Liu Pengcheng and Lao Gao walked into the interrogation room, and a policeman acted as a recorder.

On the interrogation chair, a small figure was almost curled up on it, head bowed. Liu Pengcheng had the illusion that the interrogation chair couldn't lock her at all because she was too small. The height is no more than 1.55 meters, and the weight is 80 pounds.

Liu Pengcheng sighed, although he had already predicted, he still sighed when he saw the real murderer.

Liu Pengcheng and Lao Gao glanced at each other, and Lao Gao asked: Name!

The small figure in the interrogation chair raised its head, with no expression on its face.

But she still cooperated to answer the question: "Shen Laidi." ”

Lao Gao: "Age." ”

Shen Laidi: "23 years old. ”

After asking about the natural situation, Liu Pengcheng said: "Do you know why we summoned you here?" ”

Shen Laidi nodded: "I know, I overturned the little train." ”

Lao Gao was very shocked in his heart, so he did it?

Lao Gao asked, "Do you know that this is a crime?" ”

Shen Laidi said: "I know, I also know that a child died, and I have to pay for her life." Kill to pay for life, pay off debts. I've been in junior high school for two years, so I understand this. ”

This girl doesn't speak or doesn't speak, and when she speaks, she sets a set, but she directly gives Lao Gao no words.

Lao Gao sorted out his mood and asked, "Who helped you do that overturning agency?" ”

Shen Laidi didn't understand at all, and asked, "What's the structure?" ”

Liu Pengcheng explained: "You overturned the train that thing, who did it for you?" ”

Shen Laidi said: "I did it myself, it's quite simple. They did it right where I lived, and they took away all my welding torch and electrode. ”

Liu Pengcheng asked, "Who helped you design it?" ”

Shen Laidi said: "Design? Myself, what a simple thing. ”

Liu Pengcheng asked again: "Where did you learn this knowledge?" It's mechanical-related things. ”

Shen Laidi said: "The factory in Nanyue Province, how simple it is, I'll do it in two weeks." ”

Lao Gao interjected: "Shen Laidi, I have read your file, didn't you work in a toy factory before?" ”

Shen Laidi said: "Yes, our factory is a toy factory, making export engineering building block toys." ”

Lao Gao looked confused, and Liu Pengcheng suddenly realized.

What are Engineering Building Block Toys? The other name of engineering building block toys is mechanical building block toys!

This is a must-have toy for every European and American child, especially a little boy! Some basic mechanical principles and even mechanical operations, manufacturing can be realized on this toy, which can be said to be a mechanical enlightenment teaching aid!

Liu Pengcheng asked: "This job should suit you very well, why don't you do it?" ”

Shen Laidi said: "It's very good, I will be the team leader in less than half a year, and the boss said that I will be trained!" But then, I came up with a new kind of building block. The boss fired me. ”

Lao Gao asked strangely: "You made innovations and fired you?" ”

Shen Laidi lost her spirit and whispered: "They said that the boss applied for a patent in a foreign country with the building blocks I pondered and made hundreds of thousands of American dollars." So he fired me. I also found the ruffian in the town and escorted me to the train. Just bullied me for being a rural girl. ”

Liu Pengcheng asked, "Did you call the police?" ”

Shen Laidi said: "Who do I ask to call the police, as soon as the train starts, the police can't control the factory." ”

Liu Pengcheng asked again: "Who else knows about this matter?" ”

Shen Laidi said: "I know, everyone in the factory knows." ”

Liu Pengcheng carefully wrote down the name and address of the factory where she used to work.

Liu Pengcheng asked: "Why did you overturn the little train?" ”

Shen Laidi said: "They all bullied me, everyone bullied me." I don't work hard, let me do it. At the beginning, he always protected me. But then he said that he wanted to be like me, of course I was a big girl, and of course I didn't agree, and he didn't care about me.

There is also Xiao Zeng in group B, who said that he had a partner with me, and I wanted to have an object, but then I also saw it, he just wanted me to help him come up with ideas, and he made those things that used to cost people in the garden to do, all of which were my ideas.

There is also Lao Wang in Group B, who always wants to take advantage of me. He was so close to me that I was afraid that his big stinky mouth would touch my face. The hands are not honest, either here or there. It's still impossible to say.

There are also those women, either they don't work and wait for me to do it, or they don't speak when they see others bullying me, so they don't see it. I wondered if they hadn't been on the train without it, wouldn't they all be on duty. ”

Subsequently, Shen Laidi explained her criminal process in detail, which was the same as Liu Pengcheng's imagination.

Finally, Shen Laidi asked, "I want to ask, how did you think it was mine?" ”

Liu Pengcheng said: "We didn't think it was you before we thought it was you. Do you remember the asphalt road being built in front of your house? We extracted the asphalt from the fence on the edge of the small train overturning site, and compared it with the asphalt on the road in front of your house, that is, we made an identity determination, and we knew that it was you. ”

Shen Laidi nodded: "I know, science is really powerful." ”

Watching the two policewomen take Shen Laidi away, Liu Pengcheng said: "Complete the relevant confessions and evidence, and go back to the task force, it's the big deal over there." ”

Lao Gao said, "Okay, I know." This case is not interesting. Lao Gao emphasized: "It's not interesting at all. ”

In the afternoon, Liu Pengcheng came to Secretary Ma's office. Secretary Ma looked at the materials of the case on his desk. Liu Pengcheng was dressed in a police uniform and sat on a chair in front of his desk.

In ten minutes, Secretary Ma finished reading the materials. Drop the material on the desk. asked Liu Pengcheng: "What do you see from this case?" ”

What do you see? I see who's the badass? I don't think I can answer that. Liu Pengcheng didn't know how to answer the leader's question for a while.

Fortunately, Secretary Ma didn't seem to expect him to answer this question, but asked, "Do you know what I saw?" ”

Liu Peng Chengxin said that I don't know this. But he really wanted to know what the leader could see, so he asked, "What did you see the secretary?" ”

Secretary Ma pointed to the materials on the table: "I see the necessity and urgency of reform!" ”

Liu Pengcheng walked out of Secretary Ma's office with his eyes in circles. He could not figure out what a case had to do with the urgency and necessity of reform.

After a month, he understood.

After Children's Day, the children's park was closed, and at the same time, the "Pingzhou Children's Park Overall Renovation Contracting Project" was listed on the list of investment promotion projects of the Municipal Investment Promotion Bureau, and began to attract investment from all over the world!

Of course Liu Pengcheng didn't know what would happen a month later, and even if he knew, it wouldn't be his turn to worry about it.

Back in the office, he took out the phone and started calling: "Guan Tong, I have something I want to trouble you." Can you help me find a lawyer who is more familiar with intellectual property, especially international intellectual property? Yes, yes. Here's the thing, you wait for me to tell you, I have a suspect here......."

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