Chapter 786 99 and 1

Chapter 786 99% and 1%

While Chen Shu, He Chengfeng, and Huang Mao were talking in the room, Zhu Yiba, Chen Chuan, and Jiang Hai also walked in.

In the room, He Chengfeng, who gradually became convinced, explained the ins and outs of the case in detail.

The case is very simple, that is, the deceased met Zheng Jie online and fell in love.

Zheng Jie introduced the deceased to a forged futures pig-killing plate, and after he was defrauded of hundreds of thousands, he was killed by Zheng Jie in the hotel.

Of course, Zheng Jie still hasn't admitted that he killed the person.

Chen Shu thought for a while and then started from another aspect: "Did Zheng Jie's mother, the hotel cleaner Zheng Amei, confess?"

"No, I don't admit anything, but I guess she is at least an accomplice." He Chengfeng recalled for a moment and said slowly. It was obvious that the focus of the interrogation was not on Zheng Amei, but a quick look at the old woman basically revealed that It has nothing to do with the case.

Police officers with rich experience in handling cases have been fighting criminals for many years, especially in China, which emphasizes oral confessions as the first investigative method. At least half of their daily work is spent on guessing and interrogating various people, so when it comes to looking at people, it is not easy to To say it's 100% accurate, it's at least 90% accurate.

Generally speaking, ordinary people who have never entered a public security unit will suddenly be locked into a closed and small interrogation room by armed and fierce-looking police officers one day.

In a face-to-face interrogation, you will basically be defeated in a few seconds, and you will have to spit out everything that should be said and should not be said, because most people have not experienced such a high-intensity, high-pressure situation.

In particular, the police officers who interrogate them have rich fighting experience and master various psychological skills, so people's psychological defenses can be easily broken through.

Unless someone like Zheng Amei is bound by the bond between mother and child and has protection engraved in her genes, it would be possible for her to refuse to let go.

After all, in this kind of murder case, if the son lets go, he will be shot. There is still a chance that the mother will not confess.

However, remaining silent could not conceal the uncontrollable demeanor and emotions they showed when facing interrogation.

To put it simply, in the eyes of the police, they have clearly carved the words "I am guilty" on their faces.

Chen Shu nodded and agreed with He Chengfeng's judgment.

After several questions from Chen Shu, He Chengfeng started to smell something and said quickly: "Officer Chen, you mean that Zheng Jie climbed into the deceased's room through a rope, and then used the rope to climb into the room. Escaped? But he has a complete alibi!"

Jiang Hai frowned and thought hard, then murmured: "Murder in a secret room. Murder in a secret room."

Seeing Jiang Hai thinking, Chen Shu tried to guide the other party's thinking: "Well, how about we ignore Zheng Jie's alibi for now. Just talking about this person, do you think he is the murderer?"

He Chengfeng nodded and affirmed: "It must be! At present, all signs point to Zheng Jie, but even if there is no evidence that he entered the room, he refuses to speak. Hey!"

Killing for life has been a subconscious awareness of Chinese people since ancient times. If you admit it, you will be shot, but if you don't, there may be a way to survive. Even if the probability is only 1%, most people are willing to try.

Therefore, when the police face a murderer, it is very difficult to rely on confession to convict him.

However, in the order of handling the case, the main priority is to obtain a confession of guilt first, and then use this confession to find witnesses and physical evidence, thereby closing the chain of evidence.

On the other hand, oral confession cannot solve the problem, so we have to find a solution based on physical evidence.

For the sake of beauty, the hotel’s exterior walls are flat, and there are no water pipes or air-conditioning units for climbing. It is impossible for the suspect to enter the room through the exterior wall. There is not even a place to borrow strength. .

So, only using tools can solve this problem.

The question circled back to the point that Chen Shu raised before.

Since the problem of Zheng Jie entering the crime scene cannot be solved, let's change the angle and make an inference based on his leaving the crime scene.

Chen Shu took out the yellow leather cigarette and spread it around the people present. When he handed it to Jiang Hai, he saw that the other party also stretched out his hand stupidly to put it away, so he gave him a chestnut on the forehead with his backhand.

He said slowly: "According to the 24-hour surveillance, there is no possibility of Zheng Jie leaving in the corridor and ceiling. Then based on the traces of fresh muddy ropes from downstairs on the curtains in the room, we can assume that Zheng Jie The room was left through the window using a rope.

"Just imagine, if Zheng Jie left the room through a rope, the rope he used would eventually be tied up in the room and cannot be taken away."

He Chengfeng was a little dazed. He frowned and asked, "But didn't you say that Zheng Amei didn't dispose of the rope tied in the room when she entered the room the next day? Then where did the rope go?"

Chen Shu looked at Jiang Hai and saw that the other party also seemed to understand, so he suggested: "He and the brigade, I think we can go outside and buy a thick rope to go to the site for a practical exercise. I think it will be much better than dreaming here. ”

As soon as he said it, Huang Mao borrowed a bundle of thick rope from the hotel management and went straight to the crime scene.

On the way, Chen Shu talked about his experience with Jiang Hai who was following him: "Sometimes we sit in the office and are puzzled. We can try to do a few experiments on site. Sometimes when we move, we will get unexpected results." information."

"Yeah!" Jiang Hai responded seriously, his cheeks red.

Everyone came to the room where the crime scene took place. Huangmao spread out the thick rope and then placed it on the edge of the curtain cloth with traces.

Surrounding the thick rope and curtain cloth, Chen Shu squatted beside and stared quietly, then took the rope and curtain cloth in his hands and observed from left to right.

The rope was very ordinary, with a diameter of about eight millimeters, which was smaller than the traces left on the curtain cloth. The specifications of the two were not the same.

Chen Shu weighed the thick rope in his hand and murmured: "This rope is more than enough for hanging. If it is thicker, it will probably not be a problem to use it for climbing."

After a pause, he turned his head and asked He Chengfeng: "He Da, how thick is the rope used by the deceased to hang himself? What is the diameter?"

He Chengfeng gestured with both hands and hesitated: "It's about this thick. I have to ask how much it is. It feels like it should be about the same size as the rope with traces left on the curtain cloth."

In other words, the thick rope with traces left on the curtain cloth and the thick rope used by the deceased to hang themselves are consistent in specifications, so there is also a high probability that they are the same rope.

However, the rope used for hanging was very clean, without any dirt on it, so there should be another rope hidden at the scene, or the other rope cut by Zheng Jie.

Although he already had a clue in his mind, Chen Shu still confirmed with the local criminal police: "He Da, have you checked the surveillance after the incident? Has anyone returned to the crime scene?"

"After the incident? Do we have to check the video after the incident?" He Chengfeng was stunned, then slowly shook his head, "No, we haven't checked it. After we arrested Zheng Jie, we have been keeping an eye on that guy."

We arrested Zheng Jie?

Did you arrest the person?

You thought it was a suicide case!

How shameless!

Chen Chuan, who had been following behind, couldn't help but secretly spit when he heard this.

Zhu Yiba saw this and quietly pulled Chen Chuan in. Seeing that the other party turned around with a look of impatience, he could only smile silently.

He Chengfeng continued, "With so many things in hand, I thought that I could just lock someone up and scare him a few times and the matter would be settled."

The old police's habit is to rely mainly on confessions.

Even in the current murder investigation, the police pay more attention to the integrity of the chain of evidence in the subsequent court trial, but in the early stage of the case, the police still give priority to confessions.

After arresting a highly suspected criminal suspect, the police will naturally focus on interrogation, arranging personnel to take turns and continuously conduct surprise interrogations, thus ignoring the investigation and collection of other physical evidence.

Chen Shu nodded slightly, not entangled in this issue anymore, and confirmed with the other party, "By the way, is the mud on the curtain cloth on the mud grass downstairs?"

He Chengfeng showed an embarrassed and ashamed look. He had not checked this thing, although it was basically close to the truth based on the situation at the scene.

Officer Chen, I will contact the team and ask them to check it immediately. "He Chengfeng said quickly, then took out his cell phone and hurried to the corridor outside the house.

After watching He Chengfeng leave the room, Chen Shu turned his head to look at Jiang Hai, who was squatting on the ground, turning over and over to check the curtain cloth with a major suspicion.

Jiang Hai noticed that someone was looking at him, turned around, looked up and asked: "Brother Shu, the thick rope and mud marks on the curtain cloth are obviously from downstairs, why do you have to collect them to confirm? Didn't you judge that Zheng Jie escaped from the window by using a rope based on this thing?"

Chen Shu walked to the window, squatted next to Jiang Hai, pointed to the marks on the curtain cloth, and slowly explained: "Yes, I'm sure that 99% of the things on it were stuck downstairs."

"Then why are you still"

"Isn't there another 1% possibility?"

Jiang Hai was stunned, smacking his lips, thinking about this 1% possibility.