After Gu Chen glanced around very skillfully, his eyes returned to the middle-aged man: "Can you be sure that there are no other passages in this place?"

"Definitely not. The man was very sure, pointing to the surrounding decoration and said, "This wall is covered with steel plates, and I don't even have a window installed, so I'm afraid of accidents." ”

Seeing that Gu Chen was also in doubt, Officer Wang was a little big.

It stands to reason that in the few secret room cases that Gu Chen participated in solving before, he first worked from the window.

Therefore, Officer Wang will first go to the window in every subsequent closed room case, after all, this is a major breakthrough.

But now the situation is very different, and the dark room gives people the feeling of a prison cell.

There is only one safe exit, and it is also a safe gate with a security factor comparable to that of a bank vault.

With such protection, let alone a thief, flies can't fly in.

"Could there be any other clues that you've overlooked? Are you sure the pure gold artwork is really here and not somewhere else?"

After Officer Wang made a judgment on the objective conditions, the suspicion returned to the middle-aged couple.

"That's for sure, as you can see from the surveillance footage, we put these artworks in the safe compartment by hand.

Moreover, the security system in my office is also quite tight, and I can monitor it remotely with my mobile phone. ”

In order to dispel Officer Wang's doubts, the middle-aged man also used his mobile phone to remotely operate the security system at the scene.

Indeed, there are no flaws in his operation.

It can be said that anyone who wants to enter this office, if there is no middle-aged man to remove the security system in his mobile phone, as long as he enters the office, the alarm system will automatically warn, and at the same time, the man's mobile phone and the office will sound a shrill alarm.

In this way, it is possible to give a quick alarm.

Puzzlingly, however, this did not happen......

Because thieves can't even enter the office, let alone enter the security compartment.

Now, everyone was clueless and looked at each other in confusion.

"Will it ...... Is it an acquaintance who knows you very well to commit a crime?" Gu Chen gave a new direction and explained: "For example, your habits, and those two stage tickets, do you have to go with these two tickets?"

The middle-aged man was stunned for a moment, looked at Gu Chen with a dull look, and said, "My wife and I usually work in the office at night, because customers have put forward new requirements for process technology these days, so we usually study until late at night." ”

"That's right, and after work, the factory will be cleared, and employees are no longer allowed to stay in the factory. The middle-aged woman clasped her hands, and her whole person became more and more anxious.

"In other words, employees will leave the factory through the gate after work, don't you have any other exit here?" Lu Weiwei followed Gu Chen's train of thought and quickly asked.

The middle-aged man pointed to the door and said: "The terrain here is very complicated, the factory is backed by a small hill, there is a vertical cliff, so usually you can only get out from the gate, and the surrounding fence has a complex barbed wire, which cannot be climbed out at all." ”

According to the information provided by the man, Gu Chen drew a floor plan of the factory.

Subsequently, Gu Chen used his entry-level imagination to construct a virtual space in his brain.

I looked at the entire factory from God's perspective......

After the night shift, the workers packed up their things and walked out of the gate in an endless stream.

After Gu Chen simulated the thief's successful theft, he climbed away from the cliff behind him, but this kind of bare cliff had an extremely high operation coefficient.

If you weren't a professional climber and had enough equipment and team to support you, you wouldn't be able to make it all out.

The complex barbed wire fence on the fence has its own complex water chestnut angles, and the thief in the simulation, even if he wants to climb over the wall, will basically be dead or disabled.

The two simulations have a very high risk coefficient, and there is basically no possibility.

So now there is only one last possibility left, that is, after the thief succeeds in the crime, he mingles in the crowd of people who leave work and leave the factory together.

Although this scenario simulation does not give how the thief committed the crime, from another perspective, the gate is the only way for the thief to leave after committing the crime.

"Since the thief dared to leave a letter of provocation, it shows that he is very sure, and from stealing the car to returning it, and leaving two tickets for the stage play, it can be seen that the thief is taking great pains, and he is very sure that you will go to the show. ”

"Good...... It seems to make sense. Listening to Gu Chen's analysis, the middle-aged woman suddenly realized something, and said: "In this stage play tonight, there is my favorite Happy Marijuana Flower team, I complained before that I couldn't grab the tickets, but I didn't expect to receive these two tickets." ”

Being thrown by Gu Chen, Officer Wang's eyes suddenly lit up, and he said, "Wait a minute, you said that you complained about not grabbing tickets before, so who are the people who know about it?"

"This ......"

The woman was suddenly stunned, and after thinking about it for a long time, she said, "It seems that I told a few people that they are all employees in the factory." ”

The air was suddenly quiet, and everyone looked at the middle-aged woman.

"So...... Do you suspect that it is a case of work for a factory worker?" asked the middle-aged woman weakly.

"I can't rule out this possibility, after all, not many people can know that you like to perform with the Happy Cannabis Flower Group. Gu Chen recorded this suspicion, continued to look up at the middle-aged woman and said, "The other party knows your hobbies, and uses the time when you and your husband are not in the office to commit crimes, it can be seen that you have long been targeted." ”

Hearing Gu Chen say this, the two couples suddenly gasped, feeling that things were becoming more and more weird.

Although it is now impossible to know how the thief committed the crime......

However, Gu Chen reasoned about the possibility of the suspect from another angle, and he could find a plausible speculation.

This seems to make the seemingly backwater case suddenly find its way again......

"Senior Brother Gu, do you mean that the perpetrator may know them very well, and also know about the pure gold artwork inside?" Lu Weiwei hurriedly asked, she could also find a few suspicious conditions now.

"In this way, as long as the person who meets these conditions may be the perpetrator?" Officer Wang straightened his back, and no longer had to worry about why the window in the room was not pressed.

"That's right, if I can find a suspect who meets the criteria, then I can infer from this clue what the thief was doing during the time of the crime. Gu Chen also gave his own opinion, an idea of analyzing from another angle.

After thinking about it repeatedly with her husband, the middle-aged woman replied: "In this way, there are only three people, but now they are all off work, so they can only wait until tomorrow." ”

"It's okay, you can take me to see the cliff behind you tonight, as well as the wall of the factory. ”

Gu Chen didn't mind coming back tomorrow......

What he had to do now was to see if the cliffs and walls were really what he had simulated with his entry-level imagination.