Chapter 579 No Clues

There are only two exits in this school. Both students and vehicles can only enter and exit through these two gates.

As for the surrounding walls, they are impossible to climb because they are equipped with electronic fences.

There are high-definition surveillance cameras at both gates, and the files record that no missing students were found.

A big living person can be said to have disappeared out of thin air.

Of course it's impossible to disappear out of thin air, it's not magic.

The problem is likely to occur on the unmonitored 100-meter section of the road.

Half an hour later, Chen Yan studied the file carefully and asked Li Yun some details about the case handling process.

After thinking for a moment, Chen Yan stood up and said, "Judging from the file alone, there is indeed nothing wrong with it. This person seems to have disappeared out of thin air."

"In this case, let me go to the scene and take a look."

go to the scene?

Li Yun's face lit up, and he stood up in a hurry: "That's great, it will be easy to handle with you!"

Quickly packing up the files on Chen Yan's desk, Li Yun took the lead and opened the office door.

"Team Chen, please!"

Half an hour later.

Liancheng Vocational and Technical College.

Liancheng Vocational and Technical College in early September has just started its autumn semester for one month. Old students will graduate in June and new students will enroll in late August. This is the busiest time of the year.

The school's military training for freshmen has just ended a few days ago.

The disappearance of a student, at first, only caused some repercussions among the people around the student.

However, three days have passed and there is no trace of the missing students. The media has already noticed the incident and started publicizing it.

"The missing student's name is Chen Ziqiang. He is a sophomore in the barbering class and will graduate in one year."

Different from the general four-year system of universities, most vocational and technical colleges have a 2-year or 3-year system of study. The number of years of study varies depending on the major.

Chen Ziqiang is studying beauty and hairdressing, specializing in hairdressing, and has to study in school for three years.

Chen Yan and Li Yun first came to the teaching building where Chen Ziqiang had classes.

"Three days ago at 10:20 in the morning, the surveillance record at the door of the building showed that Chen Ziqiang walked out of this teaching building."

At the door of the teaching building, Li Yun was telling Chen Yan about the situation of the day.

Facing the teaching building, Li Yun pointed to the left: "That day, Chen Ziqiang turned right after leaving the door, followed the path on the edge of the teaching building, passed through the woods, and returned to the dormitory."

"We checked the surveillance and found that this path is the only way for all students in this teaching building to go to and from the dormitory and the teaching building."

"Chen Ziqiang used to take this path to and from his dormitory and teaching building."

While talking, Li Yun led Chen Yan past the teaching building and walked onto the path. After about three hundred meters, they emerged from the woods.

Li Yun raised his hand and pointed to a surveillance camera on the roadside: "That day, this surveillance camera saw Chen Ziqiang walking towards the dormitory after coming out of the alley."

"And 50 meters past the camera is the experimental building. This distance is about 100 meters without surveillance."

"Chen Ziqiang disappeared within this distance and never appeared in any surveillance cameras again."

Chen Yan raised his head, looked at the surveillance camera above his head, and then looked at the place about 100 meters ahead. There was also a surveillance camera.

However, one of the two surveillance cameras faces the left and the other faces the right.

The back-to-back approach makes the one hundred meters between the two cameras a vacuum zone.

Next to this vacuum zone is the experimental building Li Yun mentioned.

Looking around, there are woods on both sides of the road.

"Is it possible for Chen Ziqiang to pass through the woods on both sides?"

Li Yun shook his head: "Unlikely."

"The woods on both sides are not very wide, and there are cameras monitoring after leaving the woods, but Chen Ziqiang was not seen at that time."

"The possibility of Chen Ziqiang walking through the grove to avoid surveillance is not high, because the grove is used for watering from 10 a.m. to 1 p.m. every day."

"The amount of water is relatively large, making it difficult to walk in the woods, and even if Chen Ziqiang does walk through, he will leave footprints."

"But we have carefully checked the groves on both sides and there are no footprints. This means that students here rarely walk through the groves."

The surveillance video on the road did not capture Chen Ziqiang. There were surveillance cameras passing through the grove, but Chen Ziqiang was not captured. The grove was impassable and there were no traces of pedestrians.

Chen Yan looked at the laboratory building on the right: "Then the only way Chen Ziqiang can enter this laboratory building?"

Li Yun nodded affirmatively: "We thought so at the time, and there is a side door on the side of this building near the road. It is open all year round and there is no camera surveillance."

"We suspect that Chen Ziqiang must have entered the laboratory building that day to disappear from all surveillance cameras."

"After making this determination, we arranged for detectives to conduct a blanket search of the experimental building, but nothing was found."

The two of them walked to the side door of the laboratory building while talking.

"We suspect that the other party took a path through the laboratory building and then left the laboratory building through other exits."

"But there are only three exits in this experimental building, namely the side entrances on both sides of the building and the main entrance in the middle."

"The side door on this side, which is open all year round, is close to the road and is convenient for students to enter and exit, while the other side door is close to the wall and is locked."

"So, after Chen Ziqiang entered the experimental building through this side door, he should come out through the main entrance."

"But there is also surveillance video at the front entrance of the laboratory building. If Chen Ziqiang came out of the front door, he would definitely leave traces. However, we checked the surveillance at the front entrance of the laboratory building and found no evidence of Chen Ziqiang."

"However, if Chen Ziqiang did not walk out of the laboratory building through the main entrance, he must have walked out of the laboratory building through the side door. In this case, he is back to the position 100 meters between the two cameras, and he still has nowhere to go."

dead end.

All investigations leading to this place turned into a dead end.

It can be said that Chen Ziqiang disappeared from this place.

Chen Yan nodded and led Li Yun around the experimental building.

As Li Yun said, there are only three exits in the laboratory building. The other side door has been locked all year round, and the lock has become rusty. Only the main entrance and the side door near the road are open, and there is a camera above the main entrance.

However, after going around for a while, Chen Yan also discovered a problem.

"The windows on the first floor of the experimental building can be opened and there are no guardrails. Is it possible that Chen Ziqiang left the experimental building through the window?"

"at this point……"

Li Yun and the others really didn't pay attention to this.

"I will send someone to check the condition of the windows on the first floor to see if there are any traces of stepping on them."

"But Team Chen, even if Chen Ziqiang really left through the window, there is no open space behind the laboratory building, it is a small forest. Because the soil was slippery during the irrigation day, we are sure that no human footprints were left behind."

"As for the small square in front of the laboratory building, there is also a video at the exit. Even if Chen Ziqiang went out through the window in this building, he would not be without a trace."

What Li Yun said makes sense.

If Chen Ziqiang wanted to skip class, he wouldn't have to go to such trouble.

There is no need for him to hide from surveillance.

Moreover, as Li Yun said, even if he left the experimental building through the window on the first floor, he could not avoid the surveillance at the exit of the small square.

It can be said that Chen Ziqiang actually disappeared from a closed experimental blind spot.

This gave Chen Yan a bad feeling.