The suspect's whereabouts after entering the building were basically clarified.

However, the surveillance outside the teaching and research building can only be stored for half a month, and the suspect's whereabouts outside the teaching and research building cannot be found through the surveillance.

The biggest challenge in stealing corpses is how to get them out.

Removal from the storage room from the building is one stage, and from the building out of the school is another.

Moreover, this case is not just about stealing.

It is impossible for the female teacher to appear out of thin air, she should have been transported to the school from the outside, and placed in the formalin pool for a period of time, waiting for the body to be embalmed before moving away.

This act is somewhat intriguing, what is the ultimate purpose of the suspect?

If it's just for embalming, find a hidden place, why do you have to transport it into the school?

How did the suspect bring the body into the school and then take it away?

Han Bin felt that the suspect was either bold or had an internal response at school.

"Director Ma, are there many people in school in July?"

Ma Tao thought for a while, "Eh, I really don't know much about this, and the situation in various departments is also complicated. ”

"Director Ma, you should also see that this case is not a simple theft case, it may be more complicated than we imagined, I want to have a more comprehensive understanding of the school, and I would like to meet the senior leaders of your school. ”

Ma Tao showed a wry smile, "I can't make decisions about this situation, I need to report it to the school leaders." ”

"It should. Han Bin took out a business card, "It has my phone number on it, you can contact me directly." ”

"Good. Ma Tao took the business card, said hello to everyone, and then left the monitoring room.

After that, Han Bin also left the monitoring room and returned to the back door of the teaching and research building with Guo Tianxu and Bao Xing, while Li Qin and Yanzi stayed in the monitoring room to continue to check the video to see if they could find more clues.

Han Bin returned to the back door of the teaching and research room, first, to see if the suspect had left clues, and secondly, to check the suspect's route in and out of the school.

Han Bin set off from the door of the teaching and research building and walked around the school, but found no obvious traces.

In fact, it's normal to think about it, more than a month has passed, and even if there are clues, they have almost been destroyed.

"Captain Han, you are here, you have finally found you. Wang Jinliang, deputy director of the Academic Affairs Office, came over panting, followed by a woman about forty years old.

"Let me introduce you, this is Director Sun Yuefen of the General Affairs Office. ”

Sun Yuefen took the initiative to greet her, "Captain Han, hello." ”

Han Bin said politely, "Director Sun, please make a special trip." ”

Sun Yuefen spoke very cheerfully, "It should be, it's all for the school's business, just say what you have to say." ”

"Is there a backup of the key to the storage room at No. 207 on the second floor of the teaching and research building?"

"Yes, the keys to most of the rooms in the school are backed up by our general affairs office. ”

"Where are the keys stored?"

"There is an office in the General Affairs Office that is dedicated to storing keys and materials, and the door of the office is usually locked, and the security measures are very tight. ”

"Is the key to room 207 still there?"

Sun Yuefen took out four keys from her pocket, "Yes, I heard what Director Wang said, so I brought the keys by the way, there are four keys in total, and there are exactly five keys connected to Director Ma." ”

Han Bin handed the key to Bao Xing, "Go and see if you can use it." ”

Bao Xing took the key and ran away.

Han Bin took the opportunity to ask, "Director Sun, are there any personnel on duty in the General Affairs Office during the vacation?"

"Yes, the General Affairs Office is in charge of a lot of things, and no one can't do it. There are usually one or two people on duty. ”

Han Bin nodded, just like Ma Tao said just now, there are many departments in the school, each department has a different division of labor, and most of them have employees left behind, which is not easy to count.

"Jingle bell ......" At this moment, Han Bin's mobile phone rang.

Han Bin took out his mobile phone and saw that an unfamiliar number was displayed on the screen.

"Hey, I'm Han Bin. ”

"Captain Han, I'm Ma Tao, I'm here in the administration building, Principal Chen Huafeng, who is on duty at the school today, heard that you came to the school to investigate the case, and he also wants to meet you. ”

"Okay, I still have something to do here, I'll go to the administration building when I'm done. ”

After explaining the situation, Han Bin hung up the phone.

Wang Jinliang on the side said, "Captain Han, do you have anything to do with going to the administration building?"

"President Chen Huafeng asked me to meet. ”

Wang Jinliang persuaded, "Yo, then you should go quickly, we will just wait for the Bao police officer here." ”

Sun Yuefen also chimed in, "Captain Han, go ahead, we're waiting here." ”

Han Bin nodded, "Then it's troublesome for the two of you." ”

"You're welcome. ”

Han Bin sent a message to Bao Xing to explain the situation, and then went to the administrative building with Guo Tianxu.

Principal Chen Huafeng looked about fifty years old, wearing a pair of gold-rimmed glasses, a faint smile on his face, and a bookish temperament, and he looked very enthusiastic after meeting Han Bin.

"You are Captain Han, you are really young and promising, please come in. Chen Huafeng led Han Bin and the others into the office and invited them to sit on the sofa.

Chen Huafeng's office is very simple, and the deepest impression on Han Bin is that there are a lot of books, the two cabinets are full of books, and there are two thick stacks of books on the desk.

After Ma Tao introduced each other, he left the principal's office, and only Han Bin was left in the room.

"Captain Han, I heard Director Ma talk about the general situation, if there is any need, just say it, I and the school will do our best to help. ”

"Thank you. Han Bin was not polite either, and said straight to the point, "I want a list of the staff on duty during your school's vacation." ”

Chen Huafeng frowned slightly, "Is it limited to the teaching and research building, or is it the list of all the people on duty who come to the school?"

"A list of all the people who came to the school on duty. ”

Chen Huafeng sighed, "This school vacation is relatively long, each department has its own arrangements and responsibilities, and there are more people on duty, this is a big project." ”

Han Bin said, "It's because it's not easy, that's why I'm bothering you, if it's a trivial matter, I will directly ask Director Ma and Director Wang to help handle it." ”

"Okay, I'll tell you to go down and ask the various departments to report the list of personnel on duty, but I'm afraid it will take some time. ”

"It doesn't matter, when it's ready, you can contact me. ”

"Yes. Chen Huafeng responded, "Do you have any other requirements?"

Han Bin pondered for a moment, "Does your school hire anyone with a history of stealing?"

Chen Huafeng's tone was firm, "No, the academic qualifications and backgrounds of the teachers in our school must be strictly reviewed, and if they really have a criminal record, we won't use it." ”

Han Bin explained, "I don't just mean teachers, but also other staff, such as cleaners, security guards, back kitchens, etc., all the people who work in the school. ”

Chen Huafeng scratched his chin, "This...... I don't really know. ”

"Then please help me check. ”

Chen Huafeng nodded, "No problem, I will ask the personnel department to help investigate." ”

Han Bin's words changed, "Has there been a theft case in your school before?"

"How do you say that? There are more students in the school, and the situation is more complicated, and petty theft is inevitable, but it is the first time that a teacher has been stolen. ”

"How did that male teacher come from?"

"Body donation. ”

Han Bin proposed, "I need a copy of the male general teacher's profile. ”

"This is no problem, I'll ask Director Ma to send it to you in a while. ”

Han Bin asked a few more questions, but without asking for more clues, he said goodbye and left.

As soon as I got out of the administrative building, I saw Bao Xing standing at the door smoking.

Bao Xing snuffed out the cigarette and walked over, "Team Han, Sheriff Guo, I tried to open it with a key, and all four keys can open the door, and they should all be original keys, no problem." ”

"When I came back, I met Director Sun of the General Affairs Office and returned the key to her. ”

Han Bin nodded, "Are the people from the technical department here?"

"Here we are, we're surveying the scene. ”

Han Bin returned to the storage room on the second floor of the teaching and research building, and there were three people from the technical department, led by Ma Xiwen, who looked to be in his thirties, with a thick glasses frame, and was already a little bald.

"Brother Ma, did you find anything?"

Ma Xiwen pushed his glasses with his elbow, "There are no obvious footprints at the scene, but some fingerprints have been collected and are ready to be taken back for comparison." ”

"In addition, we have extracted the embalming liquid from the pool and will take it back to test the ingredients. ”

Han Bin thought for a while and said, "Some of the surveillance videos in the school can only be stored for half a month, but the time when the suspect stole was a month ago, can you try to restore the previous video." ”

Ma Xiwen pursed his lips, "Let's try, but the possibility of recovery is not very likely, and the clarity of the video will also have a certain impact." ”

"Good work. ”