Xu Yao told himself not to get angry and tried to calm himself down. He knew that he was not here to investigate the right and wrong of justice and truth.

He wanted to re-investigate the truth of the matter.

Xu Yao took out a stack of documents from his briefcase, found a list of the people who built the stage at that time, and handed it over.

"Li Fu, these personnel are all the people who participated in the stage construction, right? I mean including laborers, handymen, technicians, designers, etc., is there anything missing?"

Li Fu looked at the list carefully, "Yes, I sorted it out. There is nothing missing in it."

"Okay." Xu Yao asked, "When was the last time you checked the stage weight?"

Li Fu concentrated and recalled, and said, "It was probably between 5:30 and 6 pm. At that time, the leader of the dance troupe came to the scene to check. He felt that the wind was a bit strong and was worried that the stage would not be able to hold up. At that time, I took him to the backstage to check the wind and carefully confirmed that there was no problem with the stage."

"So, what happened after that? Did you go back to the backstage again?" Xu Yao asked again, turning the pen in his hand.

Li Fu shook his head, "I never went to see the stage afterwards. After I accompanied the leaders to tour the stage, I went to a nearby hotel to eat. I came back around 8:20 pm.

I remember when the performance started, I was answering a phone call nearby, and I heard a bang. The accident happened."

Xu Yao asked again, "So, how many people on the list you listed knew that you used inferior fixing bolts?"

"Probably not many. Besides me, there should be only a project manager and an engineer."

Xu Yao flipped through the photos of the scene after the stage collapsed, one by one, his eyes stopped on a photo, pointed at it and asked directly,

"Li Fu, you just told me that you moved a lot of sandbags to fix the stage, but look at the scene.

The sandbags are scattered all over the floor in a disorderly manner, and there are not many sandbags on the stage frame. Did someone move the weighted sandbags, or did someone with abnormal behavior come and go near the stage?

Li Fu sighed, lowered his head, and dug his pants with his index fingers on his thighs, his fingertips turning white. He pursed his lips and said,

"It's all my fault. It's my responsibility. I didn't control the situation well, which led to chaos backstage.

Soon after the performance started, the wind was getting stronger, so I called another group of workers to bring sandbags to fix the stage. Maybe the quality of those workers was relatively poor, they didn't put the sandbags in the designated place at all."

Xu Yao asked again, "Are the people who moved the sandbags mostly workers? Are you sure you didn't see any abnormal people moving the sandbags?"

"No, I really didn't see it." Li Fu repeated mechanically.

Xu Yao had been staring at Li Fu's expression and movements. He was extremely nervous during this conversation just now, and he was obviously lying.

"Li Fu, you are lying." Xu Yao said decisively.

Li Fu denied it in panic, "I didn't lie, I didn't lie at all."

Xu Yao calmly pointed to Li Fu's hand on his thigh, and said, "You may not know, I have studied a little bit of psychology.

Humans are born with the ability to deal with threats. The limbic system of the brain will automatically send guidance signals according to the external environment to control the human body to avoid threats, or it is not for the purpose of tracking to ensure that humans can survive.

So, when the limbic system senses discomfort, it will perform a series of masturbation and comfort behaviors, such as what you are doing just now and now."

Xu Yao deliberately dragged out the tone, and Li Fu took his hand back as if he had been electrocuted. He was so panicked that he didn't know where to put his hands. He could only touch his neck and wipe his nose.

Xu Yao continued to expose him, "Rubbing the base of the legs and stroking the neck are also typical comforting behaviors. The purpose is to make people relieve tension in a short period of time. It seems that you are very uneasy now. There are many lies in what you just said. You feel guilty and remorseful."

Li Fu suddenly jumped up from the stool and screamed loudly, "I am telling the truth. Believe it or not. Are the police so great? Just based on a few simple actions of mine, you judge that I am lying.

You said you didn't see it, and you didn't see it. There were so many workers at that time, and they all wore the same uniforms. Even if someone moved the sandbags, I would not know who he was."

Li Fu's emotions were too excited now. If he continued to ask questions, he would be even more disgusted.

Xu Yao decided to end the questioning here.

He felt that the trip was worthwhile and understood the whole story. In fact, the collapse of the stage was not only due to the use of inferior fixing bolts, but was most likely related to the messy sandbags scattered on the ground.

Li Fu must be hiding something. He is very experienced in stage construction. He must be able to see the problem from the scattered sandbags in the photo just now. So he was nervous and used lies to cover himself up.

Xu Yao made a bold guess: it is very likely that someone went to the backstage and took advantage of the chaos to scatter the counterweight sandbags that were supposed to be used to fix the stage everywhere. People around him thought that it might be because of the strong wind that many places needed counterweight reinforcement, but the counterweight of the stage was actually gradually decreasing. When the wind force of the gust differed from the weight of the stage itself, the stage finally collapsed.

Li Fu once said that the wind started to blow before five o'clock, and the leader also came to check the stage. There was no problem with the counterweight at that time, so the perpetrator was likely to arrive at the scene of the accident after five o'clock and move the sandbags.

Xu Yao looked through the case files, and there was no mention of the crime of sandbag counterweights. This incident attributed all the charges for the collapse of the stage to the use of inferior bolts.

Soon, Xu Yao began to have more and more doubts in his heart. Li Fu was so experienced in building stages that he could not have been unaware that the sandbags on the stage were moved and had a direct connection with the collapse of the stage.

The description in the case files mentioned that Li Fu quickly admitted that it was his fault and was willing to bear all legal consequences. In the end, he was sentenced to more than ten years in prison.