Thirty minutes later, a short-haired girl wearing sportswear and carrying a tool box walked out of the elevator.

The girl raised her head and glanced at He Li, teasingly saying: "Officer He, why are you from the Lucheng branch going to our Xincheng branch to solve a big case? Besides, do you have jurisdiction?"

He Li stuck out his tongue at her.

The girl in front of him is Zhou Quan, a classmate of He Li's class. She graduated with a major in Criminal Technology and currently works in the Technical Section of the Xincheng District Branch.

If it hadn't been for solving the case, He Li would never have contacted the sarcastic woman in front of him even if he had died.

He Li thought to himself, Xu Zhenguo has been in the police circles for many years. It is really shameful for me, a fledgling policeman, to find ways to seek help even though he obviously has wider connections.

"I'm really afraid of embarrassment..." Xu Zhenguo said before He Li contacted Zhou Quan, "You said that I, a former captain, was handling a disappearance case. Not only was the person not found, but the case was also solved. How can I save my face? I can't afford to embarrass this person.

That……"

He knows it's embarrassing, don't I know that?

He Li rolled his eyes, but he didn't want to be kicked by Zhou Quan: "I'm talking to you, why are you pretending to be serious? Do you really think you are a detective?"

He Li glared at Zhou Quan and said, "Hey, we came here to investigate the case with Director Lin Weilin from the Wenhua Police Station in Nanhu District. We want you to come out to conduct an on-site investigation to see if we can find any valuable evidence."

"Hey, a joint task force has been set up. Which director will be the leader?" Zhou Quan walked past everyone and sneered at He Li, "What kind of scene is this? A burglary scene or an illegal trespass scene?"

Zhou Quan walked to the door and saw Xu Zhenguo. Xu Zhenguo introduced himself politely: "My name is Xu Zhenguo. I am a colleague of He Li. Hello."

Zhou Quan glanced at Xu Zhenguo frivolously and replied: "Well, hello."

Zhou Quan walked into the room, took out the white gloves from the tool box, and turned on the ceiling light switch in the room.

"Is this... a decoration site?" Zhou Quan turned around and said to He Li with a look of surprise, "I studied criminal technology, not project costing and interior decoration!"

He Li felt uncomfortable because of Zhou Quan's teasing. He held his breath and said slowly: "Hey, two children are missing in this room..."

"What are you feeding me?" Zhou Quan said angrily, "It's either feeding him or not. I'm so uneducated. Don't I have a name?"

He Li felt his blood pressure rise instantly, and his face turned red, like a boiling kettle, as if he was about to make a shrill scream...

"Comrade Zhou Quan!" Seeing that He Li was about to explode, Xu Zhenguo immediately explained, "Two children disappeared six days ago. We followed the clues to this place, but unexpectedly found that this room had become a secret room.

The person who was supposed to be in the secret room mysteriously disappeared inside the room."

Looking at Zhou Quan's confused look, Xu Zhenguo pointed to Zhang Lei and Qu Yanan squatting in the corridor: "I'm not talking nonsense. You see, these are the parents of two children. They are now eager to know the whereabouts of their children.

, and our investigation has reached a dead end, and now we need professional technicians to provide us with investigation directions through on-site investigation."

Zhou Quan raised his eyebrows: "That's right. Although I still don't understand it very well, among these people, I think you are like a policeman. You can come in and give me a hand."

Xu Zhenguo followed Zhou Quan into the living room with his hands behind his back. Zhou Quan was worried that Xu Zhenguo would mess up the scene, so he motioned for him not to move yet, while he rummaged through the toolbox and went through the investigation work alone in each room.

When Xu Zhenguo entered the room for the first time, he, like everyone else, was busy looking for the child. Everyone was in a mess, and in the panic, he had no time to pay attention to the specific situation inside the room.

Now he stood in the room again, finally having time to patiently observe every detail around him.

The situation is exactly the same as what Zhang Lei introduced. The living room, bedroom and kitchen in the room are all laid with imitation wood grain floor tiles, and the bathroom uses black and white hexagonal tiles. However, there is no plastic sheet or paper shell placed on the floor for effective effect.

protection.

The walls around the room are still gray cement brick walls, with the upper and lower water pipes and floor heating water distributors exposed outside the walls. The ceiling of the room is covered with already laid electrical wires, among which the wires in the living room hang down in the middle of the living room with the tungsten filament light bulbs.

Connected together, this is the only lighting fixture in the room.

No matter how you look at it, this is a very ordinary house.

"Old man, you can come in now!"

More than ten minutes later, Xu Zhenguo heard Zhou Quan's voice coming from the kitchen.

He smiled helplessly, walked to Zhou Quan who was squatting next to the water pipe and asked, "How are you doing? Did you find anything?"

Zhou Quan used tweezers to put the suspected hair into the evidence bag, then sealed the bag, labeled it with label paper, and then sorted the evidence bag into the tool box.

"Every room has been inspected." Zhou Quan stood up and said, "The physical evidence that can be extracted is very limited, but I am skeptical about the claim that there are two children living in this room."

"From the on-site inspection, there are no traces of life in the room," Zhou Quan slowly walked back to the living room. "This house is very clean. The floor has been cleaned with brooms and mops many times, but the window sill glass and handles don't seem to have been wiped.

Yes, a lot of dust has fallen on it.”

Xu Zhenguo nodded. He had also noticed the problem on the ground just now. He couldn't help but glance at Qu Yanan, who was squatting in the corridor.

"Due to the accumulation of dust, I took a few fingerprints from the window handle, but these fingerprints were very clear, so I suspected they were left by someone from your group later. There is no need to look at the ground, it has been cleaned before.

Now it has been trampled into a mess by you."

Zhou Quan said as he walked to the wall and knocked a few times: "To prevent accidents, I checked every wall to make sure there are no secret doors or traps."

These are all evidence that is not conducive to the investigation.

"Are there any other clues?" Xu Zhenguo asked, staring at Zhou Quan's toolbox.

Zhou Quan's mouth gradually rose: "Although the survey conditions are very harsh, fortunately the person you found is me."

As she spoke, she patted the tool box: "First, I found a cigarette butt in the mezzanine of the south-facing bedroom window; second, I extracted a few drops of urine around the bathroom sewer pipe; third, in

Behind the water pipes in the kitchen, I noticed some tiny mixed fabrics, which I just extracted. However, these need to be returned to the unit for further inspection and comparison before the results can be obtained."

After Xu Zhenguo listened to Zhou Quan's answers, he did not make any statement. In his eyes, these were not of any substantial help in solving the mystery of the secret room for the time being.

Xu Zhenguo took out his mobile phone and checked the time, and found that it was almost eleven o'clock in the evening, and the other people staying outside seemed to be losing energy, so he took Zhou Quan out.

Xu Zhenguo walked to Zhang Lei and Qu Yanan, leaned forward and said: "It's getting late, you should go back first."

"Are you... hungry? How about we go out for some midnight snacks?" Zhang Lei asked.

Xu Zhenguo waved his hand: "No need, you go back and have a rest early. If the child is not found, you will have to come to the Rujiang Police Station early tomorrow morning."

Qu Yanan stood up, helped Zhang Lei up, and bowed to Xu Zhenguo: "I'm sorry to trouble you about the child."

Xu Zhenguo and his group of seven took the elevator down to the first floor together and walked out of Binjiang Jiayuan Community with dim lights.

The area outside the community is desolate, with undeveloped wasteland everywhere, and only the shrill chirping of summer cicadas can be heard.

Xu Zhenguo and Zhang Lei exchanged a few words outside the community, and then whispered some things in Lu Shengli's ear. After everyone else had left, he motioned for the remaining three to get into Lin Wei's car.

"Brother Xiao Lin, my home is on Shuguang Street. What do you think is the most convenient way to get there? And Brother Xu, I spent 26 yuan by taking a taxi. This is not a business trip and cannot be reimbursed to the unit, so you have to find a way to give me the money."

I’ve reported it!”

Zhou Quan said and handed the phone to Xu Zhenguo. Before using it for a long time, Zhou Quan had already become familiar with these two people.

Xu Zhenguo took the phone, and Zhou Quan's payment QR code was displayed on the screen.

He shook his head, thinking that this little girl was really a born miser.

However, what makes Xu Zhenguo happy is that in Zhou Quan's words, he has transformed from an old man in his seventies or eighties back to a big brother in his forties or fifties.

Xu Zhenguo smiled and took out his mobile phone and transferred the money to Zhou Quan.

Lin Wei sent the three people in the car home one after another. Before Xu Zhenguo finally got out of the car, he specifically asked Lin Wei to watch all the remaining surveillance videos.
Chapter completed!