"Because this building was built relatively early, there was no such concept at that time, so there was no place reserved for surveillance probes, including the direction of the wires inside. If we want to add surveillance probes on this basis,

If so, some lines will float on the wall and the entire construction period will be extended."

Chen Ziyan glanced at the information on his phone and said.

"It seems that your information is quite complete!"

Qin Siyu said and joked, but it had no effect.

At least these two people still had wrinkled expressions.

"The current situation is quite tricky. Since there are no surveillance cameras... everything needs to be testified by humans."

Chen Ziyan nodded, but he realized how difficult this matter was.

If you only rely on people as witnesses, then it is very likely that there will be mutual cover-up.

If the murderer has a relatively high position and will have an impact on other people, then this phenomenon of cover-up will be more serious.

"Let the interrogation begin now!"

Qin Siyu glanced at his watch, raised his head and said to Chen Ziyan.

Almost all the employees in the company were called.

Interrogating these employees is also a very large workload.

Chen Ziyan and Qin Siyu interrogated him from dawn to dusk.

Zhang Chuge also retrieved all surveillance videos from the company.

However, after searching carefully, I did not get the few clues I imagined.

The entire building only has one surveillance camera at the entrance below, and the other one is at the stairwell.

However, we usually take the elevator, and there was originally a surveillance video in the elevator room, but unfortunately, it happened to be broken a week ago.

"Subsequently, personnel were arranged to repair it, but due to the aging of the lines, the repair process became extremely difficult."

said the staff member responsible for managing the company's surveillance video.

He also shrugged his shoulders, looking helpless.

It took two days to conduct a review with all employees in the company.

The result of the interrogation did not exceed Chen Ziyan's expectations.

"Most of the personnel are in their own offices during working hours and can testify against each other."

According to the distance between employees' offices, the crime scene actually spanned several floors.

"In addition, I also checked the surveillance video of the stairwell. Very few people use the stairwell, and the only one that can be used is someone smoking."

"In other words, no one can take the stairs, so the target should be focused on people taking the elevator."

Qin Siyu held her chin and added.

"Is that what it looks like?"

Chen Ziyan immediately asked back, but he also frowned.

"Combined with the fact that the deceased died of a heart attack, this is very strange. At the same time, there are many external injuries on the body, which means that the murderer should be in the office where the deceased was."

Chen Ziyan paused for a moment, then took his notebook and read it carefully.

"Who found the deceased?"

"It was the company's cleaner who discovered the deceased."

Zhang Chuge quickly added.

"Would you like to ask him to come in and ask questions? He is at the door of the police station now."

When we arrived at the interrogation room, there was a man sitting behind the iron table. He looked to be in his 50s, but his body was very strong, except for the wrinkled flesh on his face.

Seeing Chen Ziyan, the man did not feel panic, but seemed to be relieved.

"I was shocked when I found my boss lying on the ground. I thought he had fallen. But when I got closer, I found blood on the ground."

Before Chen Ziyan's buttocks were warm from sitting, and he didn't even spread out his notebook on the table, the cleaner couldn't wait to speak.

Qin Siyu and Zhang Chuge were listening in the next room.

"Then you tested whether the deceased still had any vital signs?"

Chen Ziyan picked up the pen and wrote a few words on the notebook.

"That's not true. I was almost scared to death at the time. How could I have the time to look... There was so much blood on the ground, I must be dying! The policeman, I really didn't kill anyone, and I and I

The boss is not related to me, and besides, we belong to an independent cleaning company. Although we work for this company on weekdays, we do not belong to this company."

Chen Ziyan knew clearly that this was so-called outsourcing.

"Then do you usually have any disagreements with the deceased?"

As soon as I asked the question, I carefully looked at the expression on the cleaner's face.

Even Qin Siyu was staring at the cleaner's face, staring hard.

However, there was no unexpected expression on that old face.

"I don't talk to him very much on weekdays. Besides, he is also very busy with his work and has little time to talk to us. If you finish your work early, you can get off work early. Who has so many things to worry about?

"

On this point, the cleaner was surprisingly candid.

"There really isn't a trace of doubt on that face."

Zhang Chuge said with some confidence, Qin Siyu nodded and agreed.

"However, we cannot let down our guard yet."

The interrogation of the cleaner did not yield any clues.

Chen Ziyan looked a little disappointed and sat at his desk alone.

In addition, Liu Xuan happened to go to the hospital for a follow-up consultation recently, so he did not come.

Qin Siyu and Zhang Chuge took on other tasks, so Chen Ziyan seemed a little lonely in the entire office.

"I think you can broaden your thinking, and maybe things will have a different side."

Jin Jiajia's voice suddenly sounded.

Chen Ziyan turned around and saw that the person walking behind him was a woman who looked like a middle school student.

"so cute!"

Almost blurted out.

Jin Jiajia was stunned at first, but soon became irritated.

"How come these words from your mouth don't make people feel happy at all!?"

Jin Jiajia looked Chen Ziyan up and down.

"However, I only started entering this police station last month, and I am still a trainee police officer."

Glancing at Chen Ziyan, Jin Jiajia said with a smile on her face.

"Then please give me more advice in the future!"

Although Jin Jiajia is lively, her actions are not what she looks like, but she is actually quite reliable.

Although we are still in the internship stage, we have already begun to practice case handling in a targeted manner.
Chapter completed!