Then, Xu Musheng went to the monitoring room on the third floor. There was a long table with a computer and a 44-inch monitor screen. Other than that, there were a few common swivel chairs and a single folding bed. Xu Musheng also saw a bowl of leftover instant noodles in the trash can in the corner of the room, emitting a strong rancid smell. The two students who were on duty that night were cooperating with the police to make a statement. Seeing such a large group of people enter, the police officer in charge of recording took them out of the room.
Zhang Zhaohui asked the technician who was sitting in front of the computer to make way for Xu Musheng and handed him a pair of rubber gloves. Xu Musheng helplessly put on his gloves and checked the computer's configuration and network situation. Finally, he came to a conclusion that this computer could actually connect to the public network. There was only a simple firewall in front of it. Then, he clicked on the surveillance software to take a casual look. The time of the video file was very continuous, but he did not find anything unusual.
No, he couldn't follow this train of thought!
Everyone was surprised to see that the student who the police had high hopes for did not do anything professional or impressive before he started to hold his chin and think. Several teachers in the school even looked impatient, afraid that he would delay the police's investigation. At this time, Zhang Zhaohui was wondering if he should get someone to make a cup of coffee for Xu Musheng before he had the inspiration. During the 501 kidnapping case, this kid had been drinking coffee from the beginning to the end. Especially when the surveillance tracks disappeared for some reason, he gulped down a large cup in one go and immediately came up with a countermeasure.
In the end, Wang Shuzhen could not wait any longer and coughed a few times. Zhang Zhaohui and Qin Ruoying glared at her. Xu Musheng stood up and said coldly," Captain Zhang, can we talk in private?"”
Zhang Zhaohui responded and walked out of the surveillance room with Xu Musheng until they reached the room at the other end of the corridor. Who knew that Qin Ruoying, Mu Yunwan, Zhou Hao, and Wang Qiankun would shamelessly come in. Zhang Zhaohui pulled a long face and wanted them to leave. Before he could say anything, he heard Xu Musheng say.
"I'm sorry, Captain Zhang. Actually, I don't know anything about surveillance systems or hacking techniques. Mu Yunwan from the computer science department is probably better than me. I really didn't see anything unusual. You can let her try."
When Zhang Zhaohui heard this, his face immediately darkened. Mu Yunwan was quite surprised. How did Xu Musheng know that she knew a little bit of hacking skills? In fact, Xu Musheng was just saying it casually. Mu Yunwan was very close to him when he was checking the surveillance computer. He saw an urge in her eyes to check for herself.
"Xu Musheng, why didn't you say so earlier? So many teachers were watching. How was Uncle Zhang going to explain it?”Qin Ruoying was anxious and disappointed.
Xu Musheng scratched his head in embarrassment. "You all said it was very strange, which made me very curious. Although I can't see the problem with the surveillance system, if you don't have any clues yet, I can recommend another idea.”
Thoughts! Mu Yunwan's eyes lit up. Last time, when their computer science department's key project encountered difficulties, Xu Musheng gave them an idea, which played a decisive role. What ideas could he come up with this time?
As an elder, Zhang Zhaohui was still very calm. He said politely," Tell me."”
Then, he extended a second finger. "Second, solving a case is like solving a problem. As long as you can solve the correct answer, there are no restrictions on the method. Since we can't figure out the killer's trick on the surveillance cameras, we shouldn't be stuck on this problem. We can dig for clues from other angles. The antique industry is very professional. Even if an ordinary person gets an antique, they don't know where to sell it. I think it's more likely that someone related to it committed the crime. The police could consider investigating the relevant people, including the teachers and students who participated in the exhibition, the students on duty, and the people in Song Jinwen's circle. They could start with their alibis and financial situation at the time of the crime to see if there were any clues. In addition, they also needed to monitor the antique market and block the channels for the gold-inlaid beast head agate pot to be sold.”
"Third, we'll look at the surveillance cameras later.”Xu Musheng glanced at Mu Yunwan when he said this. "There are two types of software testing: black box testing and white box testing. The fact was that the gold-inlaid agate pot had been lost. It was like a black box test confirming that there was a bug in the software. According to common sense, we all know that the surveillance video during this period of time is definitely illogical, but we can't figure out the reason. This is just like a white box test that can't find the specific location of the bug. However, we can try to narrow down the scope of the black box.”
At this point, Zhang Zhaohui, Qin Ruoying, and the two young police officers could not keep up with the train of thought. Qin Ruoying protested," Please, can you speak in Chinese?"”
Mu Yunwan seemed to have been awakened, and her beautiful eyes widened. "You mean the surveillance room?"
"Yes, the computer that controls the surveillance system and the switch that controls the gravity alarm are both in the monitoring room. No matter what method the criminal used, he definitely could not avoid the surveillance room. I suggest that we investigate the two students on duty.”
With that said, Zhang Zhaohui changed his mind. What Xu Musheng meant was that although he didn't understand the criminal's methods, the problem must be in the monitoring room. The two students on duty, whether they were the main criminal, the accomplice, or were used or deceived, definitely had something to do with it.
"Very good suggestion. Zhou Hao, you are in charge of investigating those two students. We are not sure about their nature yet. Don't use the method of dealing with criminals, but investigate carefully.”
"Understood, boss. Don't worry.”Zhou Hao said and left.
Xu Musheng had seen the scene and expressed his opinion, saying that he wanted to leave. Zhang Zhaohui patted him on the shoulder and asked him to think about it carefully after he went back. If he found anything, he would tell him at any time. He even left him his phone number.
Qin Ruoying grabbed Xu Musheng's arm when he was about to leave. "Where are we going? Our Yun Wan even said that she would treat you to dinner tonight!”
Eat? Xu Musheng remembered the damn format of the thesis and looked troubled. "My thesis format hasn't been adjusted yet. My supervisor said that I have to hand it in tomorrow. Why don't I treat you guys another day?”
"Hey, you." Qin Ruoying was so angry that she laughed." Do you know how many guys want to treat the great beauty Mu to a meal, but she never agreed? Are you afraid that she will take advantage of you?"
" But today, I…" Even though a gentleman would like to pursue a beautiful lady, he couldn't possibly not complete his graduation project, right? I still need this bachelor's degree! Xu Musheng looked like he was about to cry.
"Let me help you adjust the format. I'm the one who adjusted the format of the papers in our laboratory. I'm quick to do them. I'll give them to you tomorrow morning. I guarantee there won't be any mistakes." Mu Yunwan said indifferently.
Xu Musheng felt that the voice was like a spring breeze blowing into his heart. He had no choice but to agree. "That's a big help. It's on me today.”
"Alright, we haven't had lunch yet. You have to be prepared to let out a lot of blood.”Qin Ruoying joked.
After she said that, Xu Musheng remembered that he hadn't eaten lunch either. Sigh, every time it was related to a case, the one who suffered the most was his stomach.
Before the three of them left, Mu Yunwan suggested that they go to the monitoring room and make a copy of the video from the previous day. She wanted to go back and see if the video files had been tampered with. The document was huge and would take a lot of time. Qin Ruoying and Xu Musheng went to the lobby on the first floor to wait for her. Who knew that as soon as he went down to the second floor, he would hear a woman's voice that was an octave higher shouting downstairs that she wanted to see the police officer who was handling the case. When he went down to the first floor, Xu Musheng saw a young and beautiful lady. She was dressed extravagantly and didn't look like a student. Beside her was a middle-aged man in his forties. He wore metal-framed glasses, a shirt, a suit, and leather shoes. He had an academic aura, but he was speaking up for the lady with a very serious attitude. Vice Principal Gong Zhen, who was entangled by them, could not hold on any longer.
"That woman is Song Jinwen's wife. Her name is Yang Liu. She used to be a slightly famous print model.”Qin Ruoying was a volunteer at the exhibition, so she knew more about the situation. She asked Xu Musheng jokingly. "Song Jinwen had a three-time success, and the last two were all beauties. This Yang Liu is only 26 years old. Are you envious?"
Xu Musheng was not interested in such women. Compared to Qin Ruoying and Mu Yunwan, her face was a little fake. No matter how beautiful she was, her shrew-like performance did not have any beauty.
"Where's the man next to you?"
"That's Song Jinwen's assistant. I only know his surname. This guy was very lecherous. He had been staring at Yun Wan for the past few days. It was said that he had even given her a business card. By the way, do you think there will be a problem with Yang Liu? Perhaps she and Assistant He had an affair and stole the gold-inlaid beast head agate pot together. There are too many such dramas in the movie."
"You also know what that is?" Xu Musheng teased her. Qin Ruoying pouted in anger.
The two of them stood in the distance and listened to Yang Liu and Assistant He's negotiation with Vice Director Gong Zhen. It seemed that Old Mr. Song Jinwen had a heart attack because the gold-inlaid beast head agate pot was stolen. Yang Liu asked Jiang Bei to compensate for the loss and asked to supervise the police to handle the case. In the end, Gong Zhen had no choice but to ask someone to invite Zhang Zhaohui.
Mu Yunwan finished copying the video and walked downstairs. When she saw Assistant He, she pulled Qin Ruoying and walked out. She didn't seem to like him.
"Why are you afraid of him in school?" Qin Ruoying giggled and said," If you shout 'molesty', the boys of Jiangbei will definitely tear him apart.”
"Go to hell, you're making fun of me again." Mu Yunwan gently pushed Qin Ruoying.
"Ha, you don't like me! Come, come, come, let your idol accompany you." Qin Ruoying pushed Xu Musheng to her side.
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