As a traffic policeman, is it appropriate for you to handle criminal investigation cases?

Hearing Xu Lin say that he wanted to find the engineering team, Governor Jiang's expression immediately became surprised.

From the tone of the team leader, he heard a hint of excitement, could it be that the case was about to be solved.

If such a case is solved in his own office, even if the case-handling personnel are not themselves, it is a glorious achievement to cooperate with them in handling the case.

He hurriedly said, "I'll look for it right away."

Then he was about to leave, but suddenly thought that Xu Lin was still in the elevator shaft, and immediately shouted: "Team leader Xu, I will use the elevator first, there is no signal below." When

Xu Lin heard this, he immediately came out of the elevator shaft.

Everyone entered the elevator again, watching the elevator floor rise, Xu Lin silently read the seconds in his heart.

The speed of the elevator seems to be faster than that of ordinary elevators.

When checking the repairman before, he learned about the brand of this elevator and the parameters of this model of elevator by the way.

Comprehensive data has long been in mind.

So after coming up, he decisively found the problem.

According to the normal use parameters of the elevator, it should walk 12 meters for about 8 seconds.

And the upward and downward speed of this elevator is 10 seconds.

In just two seconds, even people who take this elevator every day can't find it.

After all, this time difference is too small, take a breath and pass, who can pay attention?

But Xu Lin noticed, not only noticed, but also calculated the time difference.

"Two seconds, enough to hide a floor."

Xu Lin secretly said in his heart that he was more confident at this moment.

Soon, an engineering team of 5 people arrived at the Industrial Savings Bank.

One of the leaders of the engineering staff looked at Xu Lin and the four policemen in police uniforms with a suspicious look on his face, and then looked at Governor Jiang and the employees of the two banks on the side.

He opened his mouth and asked Governor Jiang, "Comrade, are you going to do any decoration?"

Xu Lin stepped forward directly and said, "Master, do you have an electric pickaxe, or an impact drill or something like that?" "

Uh..."

the engineering team was stunned.

Then shook his head and said: "No, we also said to come to the scene to take a look." What exactly to do, you have to read it and then make a decision how to do it!

Xu Lin patted his head and said, "I didn't make it clear." We need to open a cement pouring channel, which may be more than one meter thick, so master, you think of a way.

"What's so hard about this, you guys wait." The engineer said, turned around and said something to the two people behind him, and the two people immediately nodded and went back to get the tools.

Xu Lin took Wu Xiaofeng, Han Xing, and Xiao Xue back to the third underground floor.

All four climbed onto the elevator, and Xu Lin pointed to the two elevator door frames above and asked, "Did you find anything?" The

three of them were stunned, isn't this the three elevator door frames?

What did you find?

They had no idea what Xu Lin had discovered?

"Is there a slight wear on the inside of the door frame on the second floor?" Xu Lin asked.

"It seems to be a little." Xiao Xue said.

Xu Lin took a pair of gloves, put them on, grabbed a steel cable, and pulled it down hard, and several people were surprised to find that the elevator door frame on the second floor actually moved about two or three centimeters up.

"Shhh! What's the situation? Wu Xiaofeng gasped.

Everyone was stunned, and Han Xing directly exclaimed: "Master, this elevator door frame can move, shouldn't it be fixed?"

Xu Lin: "Who told you that the elevator door frame must be fixed?" This thing is determined by the elevator shaft and floor, and the elevator door frame on the high floor is movable, and it can be used as an emergency brake at a critical time to prevent the elevator from falling.

"If I'm guessing correctly, when the elevator starts, the door frame of this elevator will fall one meter on its own, and each one will fall one meter." So from inside our elevator shaft, the distance between the three elevator doors is completely symmetrical.

"If so, why would elevator manufacturers do that?" Han Xing asked.

Xiao Xue: "Stupid, just now Master said, this is for emergency braking."

"No, you're wrong. The elevator on the upper floor will be used so much, and the elevator on the bottom floor generally does not have this thing. Of course, it is also possible that when the elevator was installed, the bank's leaders installed it for safety reasons. Xu Lin said.

As soon as these words came out, all three looked at him.

Then don't you say this in vain?

Xu Lin looked at the eyes of the three people, smiled and said: "No matter what kind of possibility, this can mislead our detection." The elevator is very simple for professional people, but for unprofessional people, its program is very complicated. "

After all, anyone would ignore this situation with security in mind.

Don't say it's us, the bank staff will ignore it.

Even the elevator maintenance staff in the back will not care too much.

"Let's go! Let's go up and contact the elevator manufacturer, I still have to confirm one thing before I can tear down the wall.

Xu Lin said, took the three people out of the elevator shaft, and took the elevator back to the ground floor again.

Then he checked the phone number of the elevator manufacturer, and after dialing, he immediately indicated his intentions, asking to contact their sales and check the installation information at that time.

The brand of the elevator is a bonobo, but fortunately, the production place is in Daxia, so Xu Lin quickly contacted their sales and also found the salesman who sold the elevator.

The other party was in Haili City, so it took less than 20 minutes to rush over.

Coincidentally, the equipment of the master of the engineering team also arrived, and they were preparing to carry it into the bank.

Xu Lin glanced at the bank that was still open and asked the masters to wait a little, and he took the salesperson to the elevator shaft.

"Hello, Xiaoyu, huh?"

"Yes, officer, I'm Xiaoyu." Xiao Yu was quite restrained.

No way, anyone who is in front of a task force leader will inevitably be nervous.

Xu Lin asked: "Xiaoyu, let me ask you, when you were selling this elevator, did the recommendation of the elevator door frame slide the door up and down?"

Xiao Yu shook his head without hesitation: "Impossible, officer." Users below 6 floors, we do not recommend using sliding doors, it will affect the service life, infrequent use is good, frequent use of the failure rate will increase by more than 40%.

Xu Lin did not speak, and pointed to the runners of the three sliding doors above.

When Xiao Yu saw it, his expression was suddenly stunned.

"Officer, I don't know about this. By the way, I brought the list and invoice for selling elevators at that time, you see, there was no sliding door device.

He was a little nervous, after all, as long as everyone in Haili City knew that the Industrial Savings Bank in Haili City had a case of theft of the treasury, and the loss was nearly 30 billion yuan.

With such a large amount of money, it is proper to sit in prison, and it is not impossible to even be directly killed.

The amount is too big, and if you have the slightest problem, you have to be investigated!

Xu Lin: "Don't be nervous, I know it's not you."

"By the way, let me ask you, Feng Kai, are you familiar with it?"

"Familiar, he used to work with me, I was in the sales department, he was in the maintenance department. I heard that he had an accident after a field trip and was hit by a car and died. We all pooled some money to give to his parents. He was a good man, alas, died young.

Xu Lin nodded: "Then can the list of field repairs before Feng Kai's death still be found?"

"We don't have it here, but headquarters should have." It's just that...... They won't necessarily help. Our headquarters, on the side of the bonobo. Xiao Yu sighed.

Xu Lin: "Have your sliding doors and related accessories been stolen before?"

"Yes! There is, and more than one.

"At that time, our logistics maintenance warehouse manager also said that the missing parts could be made into two sliding door machines... Sliding doors! Xiao Yu's eyes widened instantly, staring at the elevator door frame above.

...