Young detective case book

If there is an abyss in front of him and a person needs to jump into it, Suye hopes that the person who jumps down is himself, not Ou Yuchen.

Shao Ren looked at him for a long time, his eyes gradually became complicated, in his deep black eyes, there were annoyance, helplessness, sentimentality, and a touch of pity.

Shao Ren knew that Suye would not change his mind.

What to do next?How can I help him?Shao Ren didn't have a clue in his mind, but he decided to go to the scene of the crime and conduct a blanket search.

He remembered very clearly that Suye once said that Roca, the father of forensics, had a famous saying: "When two objects touch, there will be a transfer phenomenon. That is, something will be taken away, and something will be left behind."

He didn't believe it, and couldn't find any flaws!

He didn't expect at that time that the case would soon take a sharp turn, far out of his control.Otherwise, he would never end this conversation easily.

Early the next morning, Hua Ziqiang's father, Huawei, took a thick stack of documents and went directly to the Provincial Public Security Bureau to appeal.

In view of the special identity of the suspect, Su Ye, who has participated in the case detection work of the Public Security Bureau of City B many times, and has friendship with many police officers of the Public Security Bureau of City B, in order to ensure the principle of fairness and impartiality in the trial process of the case, I implore you to adopt a different location. Special measures for detaining and handling the case in a different place.

After careful investigation and verification, the Provincial Public Security Department confirmed that the plot described by Huawei is true.

After careful consideration, they adopted Huawei's opinion and ordered the City B Public Security Bureau to hand over the murder case in Room 206 of the Jinling Hotel to the City S Public Security Bureau.

Because of the involvement of colleagues, the Public Security Bureau of City S attached great importance to this case, and deliberately removed part of the elite police force to set up a special project team to investigate and handle the case.

As the investigation deepened and unfolded step by step, some truths gradually surfaced.

For the ax found at the scene, the police from the Forensic Section of the Public Security Bureau of S City went through detailed inspection and testing, except for Zhang Hanyue's blood and bones.They also found the bloodstains of the four victims Luo Yali, Li Chen, Cai Weihong and Xia Tong in the Butterfly Killer series of murders.

In addition, Hua Ziqiang's fingerprints were found on the handle of the axe, and only his fingerprints were found.

The skin fibers in Li Chen's nails were identified to be consistent with Hua Ziqiang's.

The Zippo limited edition lighter found at the scene has been confirmed to belong to Hua Ziqiang, and it was a birthday present from a friend.

Only a few fingerprints of Hua Ziqiang were extracted from the lighter, but Suye denied ever touching the lighter, let alone using it to hurt Hua Ziqiang.

Ou Yuchen proved that when he was tearing up with Hua Ziqiang, he saw that Hua Ziqiang's right wrist had been burned.

According to the analysis of the police, since Suye admitted the crime of killing Hua Ziqiang, there is no need to lie about this kind of injury that is barely a minor injury.

Therefore, it was finally determined that the burns on Hua Ziqiang's right wrist were self-mutilation after drinking.

In the shoe cabinet in Room 206 of the Jinling Hotel, the police found a pair of camel men's casual and fashionable men's shoes in size 44.

The dander tissue belonging to Hua Ziqiang was extracted from the shoe, so it is certain that this pair of shoes belonged to Hua Ziqiang.

What made them excited was that this pair of shoes was exactly the same as the footprints extracted at the scene in the Butterfly Killer series of murders and the human skin doll case.

In addition, in the closet of the room, Hua Ziqiang's coat was found, and a dead butterfly was found in the inner pocket of the coat.

Subsequently, the police applied for a search warrant and thoroughly searched various properties under the names of Huawei and Hua Ziqiang.

In Hua Ziqiang's villa on the outskirts of City B, the severed limbs of the four deceased, including Luo Yali, and the eyeballs of Jiang Ying, the owner of the human skin doll, were found in glass bottles with wide mouths and round bellies. soaked in formalin.

What surprised the police handling the case was that the glass bottle was placed on the display rack opposite the sofa, and a few projection lights were specially placed on it. Could it be that Hua Ziqiang likes to admire these severed limbs?

They couldn't help but suspect that Hua Ziqiang had some mental problems, and found a reasonable explanation for his behavior of burning his wrist with a lighter.

Based on the above evidence, it is enough to prove that Hua Ziqiang is the butterfly killer who killed Jiang Ying, Luo Yali, Li Chen, Cai Weihong and Xia Tong.

As for the motive of committing the crime, after a detailed investigation and investigation, it was discovered that Hua Ziqiang had an ambiguous relationship with Lina, the female publicist of the Lido Nightclub, and often invited her to appear on stage.

From this, it can be deduced that he killed the female driver Jiang Ying, Luo Yali, Li Chen, Cai Weihong, and Xia Tong who passed by the scene of the car accident in order to avenge Lina.

But there are still two unexplainable doubts. First, Zhang Hanyue did not appear at the scene of the car accident. Why did he rape and kill Zhang Hanyue?

Second, apart from the female driver who caused the accident, the police did not release any information about the passers-by to the victim's family, the news media, and the general public. Where did Hua Ziqiang learn about it?

Hearing the news that his granddaughter was raped and murdered, and that his grandson was arrested by the police on suspicion of murder, Subohan suffered a heart attack and was admitted to the intensive care unit again. It is said that the situation is not optimistic.

Ou Yuchen had no choice but to take charge of Boyu temporarily, taking charge of the overall situation instead of Su Bohan.

No matter how smart and capable he was, he was still a student who hadn't left school, so he was very busy all of a sudden.

Shao Ren made a special trip to S City, and his application for a visit was approved by the S City Public Security Bureau, but was rejected by Su Ye without hesitation.

During Suye, who was detained in the detention center of S City, he refused anyone's visits except for the police interrogation according to the normal procedure, including Shao Ren, Ou Yuchen, and the lawyer Ou Yuchen hired for him—the legal poisonous lady Xia Baoyi and her elite team.

Su Ye showed such resistance, Shao Ren had no choice but to find Chen Ziping, a former police school classmate and the current deputy director of the Economic and Cultural Protection Division of the Public Security Bureau of S City.

While asking him about the progress of the case investigation, she hinted to him that Suye had a close relationship with Ou Yuchen, and would most likely help Ou Yuchen conceal the crime.

Chen Ziping also felt that in this case, Ou Yuchen was obviously deeply involved. It was his fiancée who was raped and murdered, and Suye also accompanied him to the Jinling Hotel.

As a result, the opponent who had the legal inheritance right to the huge property of the Su family killed the enemy who raped and murdered his fiancée, and both enemies were eliminated without any effort at once. His luck was unbelievably good.

But if it was said that Suye deliberately helped Ou Yuchen conceal his crime, Chen Ziping found it unbelievable.

After all, from the standpoint of these two people, it is normal to hack each other to death with knives, and it is too shocking to stage a scene of "brothers are good".

Shao Ren's explanation for this is: "I know Suye very well. When analyzing crimes and criminal psychology, he is indeed very shrewd and capable. However, in real life, he is imbecile and mentally handicapped. Occasionally he has convulsions, which is really too much." It's nothing more than normal."

What Shao Ren said was the truth, but he did have selfish motives.

If it can be proved that Ou Yuchen is one of the persons involved, regardless of the degree, Su Ye's charges will undoubtedly be greatly reduced.

He really didn't want to watch that weak, frail, pale, and talented boy spend the rest of his long life in prison.

The Public Security Bureau of S City interrogated Su Ye many times, and he always insisted on his previous words, picking Ou Yuchen clean, and confessing his crimes.

Seeing that the day of going to court was approaching, Chen Ziping asked a psychologist to conduct a polygraph test on Suye with one purpose. Did he help Ou Yuchen conceal part of the inside story?

The leadership of the Public Security Bureau adopted his suggestion.

Many people in the police are very curious, how would a recognized genius of criminal psychology react in a polygraph test?

The so-called criminal psychology test, commonly known as "polygraph test", is actually fundamentally different from the so-called "polygraph test".

It is based on the three disciplines of general psychology, experimental psychology, and criminal psychology, as well as the knowledge of neuropsychology, bioelectronics, computer applications, investigative science, and physical evidence technology. , use the cognitive comprehensive test method to prepare test questions, and use the special psychological test system to record the changes of multiple psychological and biological responses of the testee to the main tester's speech problems in real time, and then evaluate the correlation of psychological traces to identify and judge the testees. Criminal psychology appraisal techniques for the relationship between the person and the case and the relevant circumstances of the case.

It is one of the main components of criminal psychology.

Psychologists from the Provincial Public Security Department rushed to City S very quickly. No one expected that the person who came was Mo Fei, Director of the Criminal Psychology Research Office of the Provincial Public Security Department.

He said frankly that he had always been interested in Suye, but he never expected that his first meeting with Suye would be under such circumstances.

Could it be that he is more than 50 years old this year, with gray temples and a square face, he looks very kind and amiable.

As soon as he arrived in City S, he proposed to arrange for him to test the polygraph for Su Ye as soon as possible.

Chen Ziping talked to the director in private, and after going through one, two, three... conversations, he finally got his wish and was recommended by the director to Mo Fei as his assistant.

Of course, he was so enthusiastic, not all because of Shao Ren's request, the main reason was that he was also very curious about how a boy recognized as a "genius boy" would be when he was tested. what kind of response.

The polygraph test was conducted in an interrogation room of the Public Security Bureau of City S. When the site was surveyed in advance, could it be that there was only one request, to put a mirror opposite the subject.

Chen Ziping was perplexed and puzzled, and couldn't help asking, "Why put a mirror?"

Mofei replied: "From a psychological point of view, it is very difficult for people to lie when they face their own faces. They will unconsciously notice the slight changes in their expressions all the time, and then feel guilty. Show flaws."