The detection expert twitched his eyebrows and asked decisively: "Why did Professor Meizhi come to your room to borrow the bathroom?"

Ning Keke said: "She said that the bathroom in her room was blocked, and she has mysophobia and doesn't go to the public bathroom..."

"Hmm!" The detection expert drew a line on a name on the paper. Tang Xiaoyan suddenly twitched his brows, but did not say anything to disturb the detection expert's thinking.

"Is there any conflict between Wuman and other female students, especially emotional conflicts?" the detection expert asked.

Ning Keke thought for a while and then said: "Probably not. The female students in our class rarely get involved in the relationship between men and women at this time. The school management is stricter."

When she said this, Ning Ke blushed slightly, because she had some exceptions.

"Next, please call Professor Meichi over." The detection expert said.

Others were slightly shocked, because according to the list, the next person to be summoned was a female student named Molly, and Professor Meichi should be at the end. However, they did not expect that the detection experts from the Supervision Department would summon Professor Meichi now.

Soon, Professor Meizhi walked in. She was wearing a purple cheongsam, still sexy and elegant, and her eye circles were slightly red. After learning about Uman's death, she cried alone in the room for a long time.

"Professor Meizhi, when did you discover that your bathroom was blocked?" the detection expert asked directly.

"I discovered it when I got up this morning, but I think it was blocked last night before going to bed." Meizhi said.

"Why do you say that?" the detection expert asked.

"Because I was making my own facial mask serum last night. I used a new formula, but after using it, I found that I felt uncomfortable, so I poured the remaining mask serum into the toilet of the bathroom, but when I first poured it in,

It's a diluted liquid, I didn't expect it to clog the toilet," Meizhi said.

The detection expert nodded and said: "If it is convenient, we will send someone to check your bathroom now."

Meizhi blushed slightly, then nodded and said, "Okay."

Immediately, two agents from the Supervision Department went directly to Meichi's room.

"There is another question. Classmate Ning Keke said that you have mysophobia and do not want to use the public restroom. So, is it okay to wait for classmate Ning Keke to open the door before using her bathroom?" the detection expert asked.

"Yes, what's going on?" Meizhi said.

"But the toilet in Ning Keke's bathroom has also been used by Ning Keke's classmate, and many, many people should have used it before. It is no different from the public toilet. Why don't you care about this?" the detection expert said:

"And the toilet in the bathroom in your room must have been used by many people, because this hotel must have had many guests in the past.

Meizhi said: "I have cleaned the toilet in the bathroom of my room with disinfectant more than ten times when I moved in. The reason why I borrowed the bathroom of classmate Ning Keke is because classmate Ning Keke also has mysophobia.

When she was there, someone specially replaced her with a brand new toilet."

Tang Xiaoyan was slightly startled. Although Ning Keke had a special status, he looked exactly like ordinary students and did not receive any preferential treatment. He did not expect that there would be special treatment, but it was very detailed and smooth...

Next, the detection expert asked a few more questions. Then, the two agents who went to Professor Meizhi's room came back with a bag in their hands. There was a solidified gelatinous substance in it, which must have come from the toilet pipe in the bathroom of Professor Meizhi's room.

Taken out from inside.

"We roughly checked the ingredients and found that it should be some kind of collagen. It can indeed be used as a mask material. However, this material is usually diluted and soft, but when exposed to cold water, it will solidify and shrink into a ball, so it is blocked.

The toilet in the bathroom," the agent said.

The detection expert nodded, and then said to Professor Meizhi: "You can go back, thank you!"

Professor Meichi nodded and left to go back to his room.

Within the next hour, all the remaining sixteen female students had completed their questioning.

"How's it going? Are there any suspects?" Dai Bin asked.

"Not yet!" The detection expert from the Supervision Department frowned slightly, then shook his head slightly and said: "Mr. Tang, Mr. Dai. There are 19 female members of the negotiation team living on this floor of the hotel. Among them, Professor Meizhi, Ning Keke's classmate Wu

Classmate Man lives in single rooms. The remaining 16 people live in double rooms. Almost all the 16 girls living in double rooms can prove to each other that the other party did not leave the room last night. And all the rooms on this floor except Wu

Outside of the Manna Room, there is no record of a door being opened between 1 a.m. and 5:45 a.m. Because these doors are electronic smart doors, every opening and closing is recorded.

In other words, except for Uman, no one has left the room, and no outsider has entered the second floor."

That's strange. None of the female members of the negotiation team living on the second floor are suspected, but it's impossible for outsiders to come in. So who killed Uman?

"In addition to the 19 female members of the negotiation team, who else was there on the second floor last night?" Tang Xiaoyan asked.

"Our own people, the escort team of the negotiation team, take turns to be on duty in the security room on each floor." said the special agent of the Supervision Department.

"Whose turn was it last night?" Tang Xiaoyan asked.

"Colonel Li Hu." said the special agent of the Ministry of Supervision.

Tang Xiaoyan suddenly twitched his brows and asked, "As the highest officer of the guard, Li Hu also needs to stay on duty at night?"

"Do you think everyone is as bureaucratic as you guys?" Dai Bin stabbed Tang Xiaoyan lightly.

Tang Xiaoyan frowned slightly, but Dai Bin was an elder of Zhongzheng after all, and it was hard for him to speak disrespectfully. However, the person in charge of the Supervision Department next to him sneered: "Mr. Dai, if our Skull and Bones Party is a bureaucracy, then who are you?"

"Isn't Tang Xiaoyan a member of the guard? Why don't you see you on duty at night? Why did you disappear on the first day you arrived in the Xingcheng Autonomous Region?" Dai Bin asked coldly.

"I have other important matters." Tang Xiaoyan said, and then stopped dwelling on this topic. Dai Bin was a man with a bad temper, a tough temper, and a stubborn opinion. Trying to explain to him was in vain. So Tang Xiaoyan continued to ask.

: "As the current top officer of the Guard, it is only reasonable that Colonel Li Hu should protect Commander Dai. Why is he on duty on the floor where Professor Megan and the female students are on duty? Isn't it more appropriate for a female soldier to be on duty on this floor?

"

"Are you asking questions knowingly?" Dai Bin said like spitting fire: "The person on this floor who was originally on night watch was Colonel Megan Mendez, but she was summoned away by your call. Colonel Li Hu was originally on duty

I'm on duty on the floor I'm on, but the cadets from the Alliance Military Academy are more precious than this old guy like me, so I sent him to this floor. Why do you doubt Colonel Li Hu? Then you and Yi will doubt me.

Tang Xiaoyan carefully recalled Li Hu's words and deeds just now, trying to find out what was suspicious.

"I remember that the security duty room is at the east end corner of the corridor on the second floor. It is not on both sides of the corridor on the second floor. There is also a glass door blocking all guest rooms. This glass door is also an electronic door. Every time it is opened, a record will be recorded.

"Exit." Tang Xiaoyan said: "Go and find the opening record of this door last night."

"What do you mean?" Dai Bin immediately pointed angrily at Tang Xiaoyan and said, "Do you really want to pour dirty water on Li Hu?

He was just a little offended by his words. You are so narrow-minded at a young age, and you must retaliate. Don't forget that you are a soldier, and don't tarnish your military uniform. And don't think that you can do whatever you want with the support of the Skull and Bones Party...

"

Tang Xiaoyan just frowned slightly and ignored him.

Soon, agents from the Supervision Department retrieved relevant records.

"Mr. Tang, the glass door from the duty room leading to the female trainee's room has been opened four times. They were at 22:00, 23:00 last night and 1:00,300 this morning." The agent of the Supervision Department said: "This record

It is the same as Colonel Li Hu’s record of duty on Mr. Dai Bin’s floor, and it is also consistent with the duty rules and regulations. Officers on duty need to inspect the entire floor within these four times to see if there are any abnormalities, as well as the relevant disciplines on the floor.”

Tang Xiaoyan said: "How long does it take each time the glass door is opened to closed? In other words, how long does it take for Colonel Li Hu to inspect each time?"

"8 minutes, 2 minutes, 2 minutes, 2 minutes respectively." The Supervision Department agent said: "The first time it takes 8 minutes, it is because the inspector must notify every student in the guest room to rest on time."

Tang Xiaoyan asked: "When was Wuman's death?"

The special agent of the Ministry of Supervision said: "It was around 3:35."

Tang Xiaoyan frowned and said: "But Li Hu had already locked the glass door and returned to his duty room at 3:02 in the morning. It was no longer within the corridor. The public women's toilet is at the end of the corridor inside the glass door. Wuman is dead.

At that time, Colonel Li Hu was not present."

The special agent from the Supervision Department said: "Yes, that's true."

Tang Xiaoyan said: "In other words, Colonel Li Hu is not suspected?"

A special agent from the Ministry of Supervision said: "Based on the data records, it should be like this."

Tang Xiaoyan closed his eyes, thought for half a minute, and said, "Go and call Ning Keke."

"Yes!" said the Supervisory Department agent.

Suddenly, Dai Bin stared at Tang Xiaoyan with full vigilance.

Soon, the Supervision Department called Ning Keke.

This time, Tang Xiaoyan asked directly: "Ning Keke, what time do you get up every day for morning exercise in the Star City Autonomous Region these days?"

Ning Keke said: "I basically get up at 5:20 every morning and come back from morning exercise at 5:50."

Tang Xiaoyan continued to ask: "So what time did you go for morning exercise this morning, and what time did you return to your room?"

Ning Keke said: "I don't remember the exact time exactly, but I probably went out at about 5:40 and came back before 6 o'clock. The morning exercise time was shorter than usual."

Tang Xiaoyan asked: "Why is it later today?"

Ning Keke said: "I don't know why. In the past, the glass door on the second floor opened before 5:30, but today at 5:30, I wanted to go out after washing myself, but the glass door has not opened yet.

I went back to the room to do some exercise, and when I came out around 5:40, I found that the glass door had been opened, and then I went out for a run."

Tang Xiaoyan asked the agent of the Supervision Department: "When does the glass door in the corridor on the second floor automatically open every morning?"

The agent of the Ministry of Supervision said: "The setting is to automatically turn on at 5:40 in the morning. The reason why it was turned on at 5:20 before was because Colonel Megan Mendez had to go out to exercise very early, so she took the opportunity to turn on the glass

The door is open."

"Capture Colonel Li Hu." Tang Xiaoyan ordered decisively.

Dai Bin's expression changed and he said sternly: "What are you going to do?"

Then Dai Bin saw the armed personnel of the Supervision Department and was about to call Colonel Li Hu. He suddenly stood up and shouted: "Who dares to do that? As long as I am here, you hawks and dogs will never do anything else."

"Chief Dai, we must arrest him for questioning." Tang Xiaoyan explained.

"You are treating him as a suspect." Dai Bin said: "You can let him come over if you want, and let him be one of the persons in charge of the investigation."
To be continued...