A group of four people arrived at Room 401 on the fourth floor.

Although Room 401 and Room 501 on the fifth floor are only one floor apart, because it is not a presidential suite, but an ordinary luxury suite, the structure of the house itself has undergone great changes and changes.

The most obvious difference is that all his windows can be opened.

Although they are usually closed, customers living in the house can open it manually, which makes the house possible to commit crimes.

After arriving in Room 401, a policeman immediately stepped forward and knocked on the door.

Soon, a low and steady male voice came from the room: "Who?"

"Police, if you need something to cooperate, please open the door."

When the people in the room heard the police's words, they did not hesitate and immediately replied: "Wait a moment, I'll come out after I put on my clothes."

Tang Kai and his friends were waiting outside, but after waiting for two or three minutes, they didn't see the person coming out.

Tang Kai frowned slightly, and he had a bad premonition. He was about to break into the door, but the door opened it himself.

In the room, there was a short and thin man with a beard on his face.

He looked at Tang Kai and others with vigilance.

"Please show your ID."

One of the policemen immediately showed his ID, and the short man put down the door bolt, opened the door, and put Tang Kai and the other four in.

After entering the house, the young policeman immediately began to ask according to Tang Kai's previous teaching: "Have you ever left the house in the past two hours?"

The short man shook his head: "No, after I returned to the hotel at 5 pm, I have never left the door."

The young policeman continued to ask, "What are you doing in these few hours?"

Speaking of this, she reminded with a serious expression: "I need to remind you before answering the question.

The questions we are asking now are related to a very serious criminal case. Please answer truthfully.”

"Once we find any lying in your language, we will treat you as a suspect."

The short man nodded, looked indifferent and said, "If you have any questions, just ask. Don't worry, I won't lie."

The young policeman continued to ask, "What have you done in the house in the past two hours?"

"sleep.

I felt very sleepy after coming back today, so I took a shower and went to bed.”

, “Have you opened your window?”

"No."

At this time, Tang Kai, who was constantly walking around the house and looking for clues, suddenly said, "You are lying!"

The short man looked at Tang Kai with a puzzled look: "I have indeed not opened the window. If you don't believe it, you can see it. There should be no trace on it."

There was indeed no trace on the window, because the windows were cleaned very clean and there was no dust at all.

So even if a short man opens the window, he doesn't want to find any traces on the window.

The short man was determined to eat this, so he said it confidently, asking Tang Kai and the police to check the windows to see if there were any traces left.

The young policeman was about to check the window, but Tang Kai stopped him.

Tang Kai smiled and said to the short man: "You are very smart and have thought of the words in advance. Even all the traces on the windows have been handled well, but you have forgotten one thing."

The short man frowned: "I don't know what you are talking about."

The young policeman and the middle-aged policeman also looked at Tang Kai with confusion, not knowing what Tang Kai said meant.

Tang Kai pointed to the air conditioner and asked, "When did you turn on the air conditioner today?"

The short man replied: "Of course, the air conditioner was turned on since he returned to the hotel in the afternoon.

Is there any problem?"

Before Tang Kai could speak, Tie Yunlan spoke.

She took out her phone, turned on the temperature test function attached to the phone, tested the temperature inside the room, and then showed the data to the short man and two policemen.

She said: "The current temperature in the house is twenty-one degrees, but the air conditioner temperature you set is twenty-eight degrees."

"If you really turn on the air conditioner from the afternoon when you return to the room, then the temperature inside the room should be twenty-eight degrees, not twenty-one degrees!"

The short man's expression changed slightly, and he argued: "I felt a little hot in the middle of the way. After a while, it was not long before I opened it again."

Tie Yunlan showed a sarcastic smile on her face: "It is not difficult to get the operation records of the air conditioner."

She took out a strange instrument from her body. Tang Kai had seen it in Tang Nade's laboratory before, but she didn't know what it was and what it was for.

I saw Tie Yunlan sticking the weird one on the air conditioner together, and then operated it on the mobile phone for a while, and soon some data was obtained on the mobile phone.

She pointed to one of the data and said, "You turned on the air conditioner five and a half hours ago and adjusted the temperature to twenty-eight degrees Celsius, and then you did not issue any instructions to the air conditioner."

“So, there is only one reason why the temperature in the house is so hot.

That is, you have opened the windows for a long time, causing the heat in the house to dissipate!"

"And..." Tie Yunlan looked at Tang Kai and said, "You will supplement the rest," Tang Kai pulled the corner of his mouth and continued, "The time you opened the window is not too long now, and it is not difficult to get the exact time."

Tang Kai took out his mobile phone, turned on the calculator, and began to continuously enter data on the calculator.

While entering, he said: "The outdoor temperature is 16 degrees, the room volume is about 160 cubic meters, and the power of the air conditioner can also be found. We can easily calculate how long ago you opened the window."

Tang Kai did not stop using his mobile phone to continuously calculate while speaking.

Soon, he came to a conclusion on his phone.

The time when the man opened the window was about fifty-three minutes ago! Chen Mingyue's shooting happened forty-eight minutes ago.

Two times, it was perfectly matched! The faces of the policeman and the young policeman changed, and he suddenly took out the gun on his body and aimed at the short man.

"Don't move, you've been arrested!"

The young man continued to point the short man with a gun, while the middle-aged man took out handcuffs from his waist and prepared to handcuff the short man.

The short man looked at Tie Yunlan with complicated eyes. After a while, he sighed a long sigh and said softly in an indefinite voice: "I didn't expect that my plan that I thought was seamless would ignore such important information. I will definitely be more cautious next time. Thank you two for teaching me this class."
Chapter completed!