Police order

Chapter 117 Analyzing the Chamber of Secrets
What Liu Liwen said was in line with Lu Ling's thoughts.

Similar to the "Blizzard Mountain Villa case", two homicides occurred in a closed small environment, which may be committed by one person, or there may be someone else hitchhiking, saw other people killing people, and then committed crimes, so that your own Criminal behavior is not easy to detect.

The four of them are very busy now, but after chatting for a long time, they finally decided to hold their breath here and analyze the logic of the secret room.

In "Detective Chinatown 3", thirteen kinds of secret rooms are mentioned. This actually comes from the famous novel "Three Coffins". It is not thirteen kinds, but a summary of seven types of secret rooms and five anti-locking techniques.

There are seven types of classification. The first is that this is not murder. This is an accident or coincidence, or death caused by poisonous snake poison.Clearly not in this case.

The second type is murder, but the victim is forced to commit suicide, which is obviously not the case in this case.Suicide can reach this level, which is amazing.The most important thing is that this dismemberment was carried out after death.

The third is that suicide is arranged as murder, which is not true.

The fourth is to use ingenious mechanisms to carry out murders. This is also impossible. The traces of the knife in this case are very obvious. If the mechanisms can be so ingenious, then modern technology can continue to break through.

The fifth to seventh methods are to use illusion, disguise, attack from outside the room, and falsify the time of committing the crime.

Among the five anti-locking techniques, there are manipulations on keys, hinges, latches, and bolt locks. Another solution is to create illusions.

It seems that there are many types, but this secret room is inseparable from a plan, which is to tamper with the doors and windows.

Officer Yan's investigation has exhausted the six sides of the house, including the floor and ceiling, and even the wire holes, sockets, and gaps in the ceiling have been carefully inspected, and no problems have been found.

Given the high temperature in the room, it is true that if ice products are used, they may melt and evaporate, but no one can figure out how to use ice products.Larger ice products are difficult to evaporate after turning into water, while smaller ones have no strength and are easy to melt indoors.

After everyone's discussion, a new plan was studied.

For example, hang a piece of ice on the handle of the window, and then press the locking structure on the side of the window with your hand so that the handle will not go down. After someone goes out, use a suction cup to suck the glass outside, quickly close the window, and hang it. The icy structure will lock the window due to gravity, and it will fall off when the handle is half locked.

I have tried it now, and it takes a lot of force to lock the windows like this, at least one kilogram of ice is enough.

It is impossible for one kilogram of ice to turn into water vapor overnight in a confined space.

"What if it's a kilogram of dry ice?" Liu Liwen said, "For example, a whole kilogram of dry ice with a hole cut in the middle and hung on the window handle."

"What about the specific heat capacity? I remember that dry ice is minus [-] degrees. During the sublimation process, it absorbs a lot of heat. Will there be any environmental changes in the house?" Lu Ling remembered that the vaporization of dry ice was spectacular.

"If you put it directly into the water, there may be a lot of white smoke. It's not a problem if you drop it on the ground. It's estimated that it will be vaporized in an hour or two. If it breaks, it will be faster. One cubic meter of air weighs 1.3 kilograms, and this room has at least 50 cubic meters of air. , and heating, 1 kg of dry ice will not cause much temperature change."

"Then here comes the problem." Lu Ling looked at Master Yan: "Master Yan, are there any traces of heavy objects falling and smashing near this window? Also, when I was eating at the unit yesterday, I heard from the master of the unit that the northern Generally, the windows are cleaned and cleaned after the new year, there should be a layer of dust on the outside of the windows, are there any traces of suction cups that can pull the windows from the outside?"

Yan Yongfu shook his head.There is indeed a layer of dust on the outside of the window, not only on the glass, but also on the entire outside of the window. It is very obvious that the dust has no trace of being touched by anyone.

From the very beginning, Yan Yongfu denied the way of windows.

This is the third floor. Unless the fire brigade's ladder truck is set up outside, how can there be no traces when you go out from the third floor?
"I personally think that half of the windows are closed here, or a third of them are closed on purpose to confuse us." Yan Yongfu said.

Both Lu Ling and Liu Liwen nodded.

Regarding Yan Yongfu's inference, Lu Lingxin did not dare to be superstitious.

It’s not that he doesn’t trust professional people, but that Yan Yongfu doesn’t trust their doors and windows. The door was damaged, so some traces may not be found. Yan Yongfu didn’t participate in the process of destroying the door, so he always felt that the door was damaged. .Correspondingly, the window was opened by Yan Yongfu. He didn't find any clues here, so he trusted his own thoughts even more.

Lu Ling was afraid that Yan Yongfu would fall into this kind of thinking confidence and ignore the details.Of course, he still trusts Yan Yongfu 99.99%
In short, the four of them have studied the secret room for a long time now, but have not found any loopholes. After studying the window for a long time, they began to study the door again.

Before the door was destroyed, Qingshan tried hard to see if it could be opened, but failed. This almost guarantees that the hinge of the door was fine before Qingshan pried it open.This also shows that there is no structural damage to the door.

This is very unacceptable. Four professionals who are more professional in all aspects were made into this by a small thief.

"This shows that we are considering the problem from the wrong angle." Lu Ling looked at the team: "Let's change the angle. Why did Han Shan die?"

"Let's check the motive." You Shaohua listened to Lu Ling's words and sighed.
Han Shan's interpersonal relationship can be called simple. As an undergraduate student of Liaozhou University, although her studies are not top-notch, she is still very good. The investigation of Han Shan's boyfriend Jiang Andong also ended in the same way.

In this case, the police found no motive for the crime.

You Shaohua is embarrassed to say this, the case has been going on for so long, and the criminal motive can't be found, so you can't simply think that this is indiscriminate killing and revenge on society?

The four of them looked at each other in blank dismay, none of them knowing what to do next.

In the silence, You Shaohua's cell phone rang, and he picked it up to have a look. It was Wang Dui, another deputy captain of the criminal police team, who was a few years older than You Shaohua. Seeing everyone's eyes, You Shaohua turned on the speakerphone.

"You team, where are you? If you have time, come to my inquiry room." Wang Dui said.

"Captain Wang, Lu Ling and I are back at the scene again. Your side. Is your side Yu Shike's place? What's going on?" You Shaohua's heart beat a little faster.Team Wang will not call him casually!

"Did you two go to the scene? Is there any progress over there?" Team Wang asked.

"No, where are you?" You Shaohua asked with some hope.

"Yu Shike has something. A small situation. She seems to be a little out of order. Simply put, it's like a different person. I still don't have much experience in this field, so I want to talk to you. If you If you're not here, forget it." Dui Wang said.

"Free! I'll go back right away!" You Shaohua said immediately.

Lu Ling watched You Shaohua hang up the phone, then looked at the three of them: "Dual personality."

(There is another update today. The case is endless. If you reread the first to third acts, you will find that Yu Shike does have a special personality.)

(End of this chapter)