Zhang Zhaohui continued," Old Zhang, even if what you said is true, it doesn't explain why the gravity alarm wasn't triggered. The gravity alarms of all the booths were under unified control, and the switch was in the monitoring room. It was impossible to just turn off the gravity alarm of the agate pot with the gold-inlaid beast head. If they were all turned off, the people in the monitoring room would probably notice.”
The policeman called Old Zhang nodded and agreed with this explanation. Another middle-aged police officer asked. "Which company owns the booth and gravity system?”
"It's custom-made from a German company called Safe Strong. It's quite famous in the security field, and the quality of the products is also very good. We've already contacted their engineers to investigate the scene. However, they would only arrive the day after tomorrow at the earliest.”
"The criminal stole a high-level security system in 45 seconds. It sounds like a spy movie.”A young police officer complained.
Many people present had similar thoughts and nodded. Some people even suggested that they need to apply for technical experts from the Ministry of Public Security to conduct another on-site forensics.
"Then let me talk about the situation of the relevant personnel. Let's first talk about the three people who were on duty at the exhibition hall from the night of the 21st to the early morning of the 22nd.”Zhou Hao switched to the PowerPoint presentation, and the two students 'avatars and information appeared on the screen.
Zhao Xiangdong: 22 years old, a sophomore in the Department of Construction. His family lives in the rural area of Yun County, which is close to Binjiang City. His family's financial situation is not good. He has been participating in various part-time work and part-time study activities in the school for a long time. He was also recommended to help.
Wang Bin and Zhao Xiangdong did a patrol around 8 o'clock and stayed in the monitoring room. They admitted that they didn't do the inspection every two hours as required, and they also admitted that they watched American dramas and played games together. Wang Bin had brought the laptop that he was using to play games. We took this computer back for inspection. The model was relatively old. Other than the architectural drawing software installed, there were only a few episodes of American TV series and two very old stand-alone games. There were no hacking tools.”
After speaking about the monitoring room, Zhou Hao switched to a powerpoint and projected the situation of the old guard.
Zhou Hao's description of the old man Huang Xinguo reminded Xu Musheng of the old gatekeeper in the courtyard where he lived when he was a child. He often dozed off when he had a television or radio on all year round. He dared to bet with his undergraduate degree that Huang Xinguo would definitely fall asleep before 11 pm. Even if the criminal walked past him, he would not notice it.
"I thought about it last night. Is it possible that Wang Bin and Zhao Xiangdong did it together? They could easily turn off the gravity alarm. Huang Xinguo was on the first floor, so he couldn't hear the commotion on the second floor.”Wang Qiankun raised his hand to speak. Although Zhang Zhaohui did not give him the task of investigating Wang Bin and Zhao Xiangdong, Xu Musheng said that the people in the monitoring room were very suspicious, so he guessed the possibility along this line of thought.
"They were all involved in the preparation work for the conference. They might have been careful to get the password early on and made a copy of the key in private. The teachers in the school must have instructed the students to do it. Their safety awareness was not high, and the possibility of being taken advantage of was very high.”Wang Qiankun said.
Zhang Zhaohui looked at Qin Ruoying. She was the only one who knew about the preparation period of the exhibition.
"Wang Bin is very lazy. He always hides from the slightly troublesome things in the student union. He had indeed been caught later. He had not participated in the preparatory work, so he should not have come into contact with the key and password. " Zhao Xiangdong…" Qin Ruoying thought for a moment." Maybe." I remember that he helped me move my stuff the day I put the antiques on the booth. He must have been there that day."
"Have you checked their financial situation?”Zhang Zhaohui asked Zhou Hao.
"I did. It still looked normal now. Wang Bin's parents were both employees of Weinan City Water Company, and their family background was not bad. He had a savings card and a credit card. There was no debt on the credit card. There was more than 4,000 yuan in the savings card, which was transferred to him by his father. Zhao Xiangdong's parents were farmers. He only had a savings card with only 500 yuan in it. It was earned through part-time work.”
"The gold-inlaid beast head agate pot is very valuable. It won't be sold so easily. If Wang Bin and Zhao Xiangdong were really criminals, they wouldn't be stupid enough to put the money in their own card. Since there was a possibility between the two of them, he had to investigate further. Zhou Hao, take note. I'll leave this matter to you." Zhang Zhaohui said as he made a few notes in his notebook.
Zhou Hao then talked about the situation of the school teachers. Gong Zhen, the vice principal of Jiangbei University, was in charge of contacting Song Jinwen. He was also the head of the preparatory team for the exhibition. However, other than the special funding for this matter, he did not participate in the actual work. The actual work was mainly handled by Teacher Wang Shuzhen from the Faculty of Arts. On the night of the 21st, Gong Zhen had two consecutive social gatherings. He only returned home after 11 o'clock and did not leave the house after that. Wang Shuzhen went home directly after the routine check-up and did not go out. There were witnesses to their whereabouts. The other teachers who participated in the exhibition were in a similar situation. Teacher Jiangbei was not the main suspect in this case, so the task force did not discuss it too much.
After that, Zhou Hao introduced Song Jinwen's situation."
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