Retracing the Police Path 1993

After reading the situation of Group A, Liu Pengcheng shook his head. It may be a bit exaggerated to say that everyone has a motive to overturn the little train, but at least three of the four people have motives, especially when the overturning happened in Class B. Down.

Liu Pengcheng continued to look down, it was the situation of Class B and related records.

The leader of Class B, the mechanic Mr. Wang, is also an old employee in the garden. He is an old technical secondary school student in the 80s. For some new problems, he neither knows nor learns.If Lao Gao in Group A still can't figure it out, he usually has to spend money to find an engineer outside.This person is a big talker, likes to overwhelm others in everything, and very much regards himself as the team leader as an "official".Seven out of eight people in the two groups bothered him.

Xiao Zeng, a technician from Class B.This is an unlucky boy who originally graduated from Zhongyuan University of Mining and Technology with a major in mechanical engineering. After graduation, Mei Zizi was assigned to a general machine factory of a mining bureau with a dispatch certificate.After working for 26 days, I was laid off.His family’s conditions were mediocre, so he had to come out to Pingzhou to “seek a living” by himself, just in time for the children’s park to recruit a large group.So a country's regular undergraduates have become a large group of cartoon car teams.

Xiao Zeng is very smart, and he has received a formal university education after all. He can handle ordinary things, and he can also handle most of the faults that need to be spent outside to fix them.At this time, Lao Wang was beside Xiao Zeng, saying a few words that were not right with the lips of a donkey.When Xiao Zeng finished it immediately, he ran to the leader to show his credit.So he can get a lot of bonuses and praise from the leaders.

Xiao Zeng didn't know once or twice, how could he not know about it three or four times?Xiao Zeng is a man of culture, so of course he couldn't do anything like punching his fists, so he wrote a letter of resignation.The letter clearly stated everything, and explained that the reason for my resignation was that I had solved all the problems that I had spent money to solve, but I didn't have a penny bonus, so I didn't care if I didn't do the job!

The leaders of the park didn't take it seriously at first. As a collective worker, if you resign, you will resign.But after reading the thick resignation letter, I became interested, and after reading the contents inside, the leader's nose was almost crooked.Of course, other people's leaders will not be angry because the credit of a collective worker is preempted.The leader is angry, is your surname Wang treating us leaders as big fools?As a result, Xiao Zeng's resignation has no further details, Lao Wang was named and criticized, and he was still reading his self-criticism through the loudspeaker.The half-year bonus was deducted to make up for Xiao Zeng.

From then on, Pharaoh and Xiao Zeng were inseparable.The time Lao Gao knocked out one and a half of Lao Wang's front teeth with a punch, it was Xiao Zeng who pretended to be a drag and grabbed Lao Wang.

Sister Zhou, the conductor of Class B.This elder sister is also a very individual person. Her work is not good at all, not that she doesn't do her own work at all.I go to work at the right time every day, leave work at the right time, and never participate in the affairs of the unit, as if I live in another world.

Class B ticket inspector Xiao Wu.This is also a character. The old man is a deputy director-level cadre in the city. Although he is not in charge of the park, his rank is there.She looks like a young mistress all day long.The cleaning before leaving get off work every day is always done by swiping the broom twice, so when Xiao Shen goes to work, he can see the garbage all over the place, which is no different from the fact that it has not been cleaned up.Moreover, this person is very irresponsible to work, and the inspection and safety are also superficial.If she hadn't checked carefully, the little girl wouldn't have been thrown out.

Liu Pengcheng closed the materials and asked, "Does Director Gao have a clue?"

Lao Gao lit another cigarette and said, "This case is not difficult as long as you jump out of that device. During our investigation, we focused on asking the employees of Class A about their activities after work. If they left, who saw them?" It turned out to be quite interesting. One was Xiao Feng. He didn’t leave after work, but went to help someone’s bumper car. It is said that he was interested in a little girl in that team.

There is also Xiao Shen, the ticket inspector. She had already left with Sister Li when she got off work, because Sister Li's house and Xiao Shen were on the same road, and they often walked together.But Xiao Shen suddenly said that he had a stomachache and wanted to go to the toilet. Of course, Sister Li didn't want to wait for her, so she left. "

This is also an idea!Liu Pengcheng thought.Find out who might be at the crime scene and who might be the murderer.

Just as Liu Pengcheng was about to speak, Director Liu walked into the office with a middle-aged man and a young man.

Director Liu said, "Ju Liu, Ju Gao. This is Professor Yuan from the Physics Department of our Pingzhou Teachers College, and this is his student Xiao Li."

As soon as Liu Pengcheng heard it, he knew that this was the arrival of the expert promised by the leader.Hastily stepped forward to shake hands.

After exchanging pleasantries for a while, Liu Pengcheng knew that Professor Yuan was a real expert, and he was the one who presided over the design of Pingzhou's iconic super Ferris wheel. As for Xiao Li, he was a graduate student under his supervision, and this time he followed his tutor to meet the world.

Liu Pengcheng and Lao Gao introduced the situation of the case, especially the situation related to the mechanical device, to Professor Yuan.Liu Pengcheng knew that for these experts, the more accurate the conditions, the better.So try to introduce the case with numbers, such as the angle and depth of the cement nail inserted into the tree trunk.Approximate volume and three-dimensional figures of underground installations, etc.

Professor Yuan has been listening like this, with a smile on his face.Xiao Li was busy recording, especially recording those numbers.

After Liu Pengcheng finished talking about the situation, Professor Yuan laughed: "I didn't expect my major to help the police solve the case. This case, this gadget, um, it's interesting, very interesting."

He unceremoniously picked up his student's notebook, looked at it and said: "Since the nail can collapse and fly out, it means that there is a strong spring in the device. Otherwise, according to the characteristics of the cement nail, or it is straight, Or it is bent, but there is no elasticity. Let me see, there should be a gear mechanism here. The gears placed in such a small thing can also carry huge forces. Well, the number of teeth should not be large. Xiao Li, Can you figure out what it is?"

Xiao Li nodded, quite confidently: "Professor, I probably have some vague ideas. I need some time, about 10 minutes."

Professor Yuan laughed: "Okay, that's what you said. It's a military order in front of the police chief. I'll give you 10 minutes. If you figure it out, I'll count your credits. If you're bragging, hum! "

Xiao Li didn't speak, took out a big notebook from the bag he was carrying, sat on the sofa and began to write and draw.

Lao Gao asked: "Professor Yuan, in your opinion, this matter is quite simple."

Professor Yuan waved his hands hastily: "Don't be misled by me. With a very simple mechanism, you can fool the small train's obstacle remover and the insurance mechanism behind it, and even cause the small train to overturn. This is really not a simple matter. .

You see, I assigned him as a student's homework because you have given too many known conditions, like, right, like knowing the answer in advance and pushing back, of course the difficulty will be reduced. "

Liu Pengcheng asked: "Does the person who makes or develops such a small mechanism have to be a graduate of an institution of higher learning or a professional school?"

Professor Yuan thought about it this time and said: "It's not necessarily true. In college, most of the theoretical knowledge and cutting-edge knowledge are mostly used. This thing is really useless. But this person should have a certain level of mechanical knowledge. It doesn't need to be advanced. Just get started. For example, I worked as a worker in a certain machinery factory for a few months, that’s it.”

Liu Pengcheng nodded, that's right.

The three people here were chatting, and Xiao Li had already come to hand in his homework: "Professor, I think this institution should look like this, or something like this. Check it out!"