"Bureau Cao, Zheng Detachment, and not outsiders, don't be so polite, let's eat casually and hurry up to study the case file. Pen, fun, pavilion www. biquge。 info Besides, I can't drink alcohol, you two don't believe it, you can ask the Ning Bureau, besides, Comrade Wan Hailong, the director of our DNA laboratory, is doing experiments, and he can't get out for more than ten hours, and people can't get together. ”

Rushing to the hotel from the scene, Deputy Director Cao of the Municipal Bureau and the head of the criminal investigation detachment had already arrived, and they had to set up a banquet to catch the wind.

Han Bo didn't care about eating and drinking, and Zhou Suying, who had just returned from the detention center, didn't care, and echoed: "Two leaders, the Han detachment can't drink, I can't drink, the world's public security is a family, there is really no need to be so polite." ”

"You're a guest, I'm embarrassed to go to Nangang next time. ”

"Bureau Cao, look at what you said, the work is important, say hello to the manager, let the kitchen make something and send it to the conference room, and we will eat while looking at the materials. ”

It would be hypocritical to insist again, Cao Ju and Zheng Detachment glanced at each other: "Since the two of you are so polite, you can do what the two of you say." Lao Zheng, you go and arrange, let's go to the conference room first. ”

"Okay, I'll arrange it. ”

"Comrade Yi'an, Xiaoqu, come together. ”

The leader of the city bureau only named Lao Ning's name, he didn't even know what Xiao Dan's surname was, let alone the relationship between Han Bo and Xiao Dan, looking at the old subordinates who wanted to go with him and were embarrassed, Han Bo smiled and said: "Xiao Dan, the task force does a lot of work, there are too many materials, we can't see it, let's go in and help." ”

"Yes!" Xiao Shan never wanted to show his face in front of the leaders of the city bureau, he just wanted to be with the old leaders, and as soon as Han Bo spoke, he was immediately ecstatic.

There are a lot of materials, and the police handling the case have sent a lot of them, and the conference table is all there.

Cao Ju motioned to Qu Cong, the captain of the Economic Investigation Brigade, to bring him to the door, sat down and said bluntly: "Comrade Han Bo, Comrade Su Ying, I can't hide it, this case has made us anxious. The identity of the victim is special, and the suspect's situation is even more special, the victim's relatives go to the city leaders, and the suspect's relatives go around complaining and shouting grievances. The two families did not give up, and public opinion was even more one-sided, saying that our public security did not have the ability to solve the case and take a madman to blame, which had an extremely bad impact.

When encountering this unlucky case, everyone was afraid of taking responsibility and avoided it. Others can hide, but we can't dodge, and now it's difficult to ride a tiger, so we can only ask for your help. As a public security policeman and a law enforcement officer, who is willing to handle unjust, false and wrongly decided cases, please point them out clearly when problems are found, and the authorities are confused by bystanders. ”

"Thank you for your understanding. ”

"It should be that I thank you, the adversity sees the truth, and it is not easy to know that the case is not only not shirked but also came. Not only am I grateful, but we are also very grateful to He, who really can't take a break today, and entrusted me to convey his apology. ”

"I'm a little flattered by what you said. ”

"Don't say these kind words, let's get down to business, you have been to the scene, you have heard the introduction of Comrade Cheng Cheng, Comrade Su Ying has been to see the suspect, please talk about your views on this case. ”

"I haven't read the materials, I don't have any views for the time being, but I have some ideas. ”

Han Bo looked sideways at his partner and analyzed: "The police handling the case first searched for a bloody hammer from Zhang Dayong's house, and then arrested Zhang Dayong in other places. He did not see the police find the murder weapon from his house, and the police did not mention the murder weapon to him. When interrogated, he took the initiative to say that he would shoot first and then smash with a hammer.

As the saying goes, children don't tell lies, and what madmen say is not necessarily all lies. If...... If the investigators did not mention it during the arrest, detention and interrogation, then the direction of the investigation should be correct, and this case should be committed by Zhang Dayong, not only a criminal case, but also a case caused by a person with a mental disorder. ”

Feng Chengcheng was in charge of the specific investigation, and immediately stated: "Han detachment, I vouch for the party spirit and personality, we have not disclosed the cause of the victim's death in advance, and there is no inducement to the suspect during the interrogation. Considering that he is a madman, he may not be able to tell in the future, and the entire interrogation process is videotaped. ”

"Is it possible for him to find out from other sources, after all, there was a gap of six days between the incident and his arrest. ”

"It's unlikely. ”

Feng Cheng turned out a document and explained: "First of all, the case was discovered in time, from the discovery of the body by the passers-by to the arrival of our police at the scene in less than 5 minutes, because it was around 6 o'clock in the morning, there were not many pedestrians on the road, unlike other cases where there were many onlookers.

Secondly, we have reminded the people who called the police more than once, asking him not to talk nonsense. Even if he didn't listen, it would be impossible to tell from the injuries what kind of murder weapon the suspect used, in fact, our forensic doctor of the city bureau only concluded that blunt force injuries were made, and no one knew what the murder weapon was until the hammer was found. ”

"Commissar, what do you think of the suspect's mental illness?"

The stakes are so high, Zhou Suying didn't dare to make a conclusion easily, and only glanced at the iron door a few times in the detention center, and shook his head: "I can't see anything on the surface, I want to look at the medical records first, and then go to see the suspect after reading the medical records." ”

Han Bo's analysis just now is also one of the important reasons why the municipal bureau will not make mistakes.

The question now is not whether the wrong person was arrested, but how to prove that the city bureau did not arrest the wrong person, and how to convince the relatives of the victims, the relatives of the suspects, and the whole society.

As long as these tasks are done well, the pressure on the procuratorate and even the courts will not be so great, and they will not be swayed by the pressure of public opinion, and they will be able to accept the evidence submitted by the public security bureau, and they will be able to smoothly conclude the case.

Cao Ju didn't say that he thought so in his heart, but he was very relieved to see that Han Bo could give an objective and fair evaluation, and he had a simple dinner with everyone, thanked him again, and found an excuse to leave first.

Courts cannot engage in "presumption of guilt," and the public security is different from the courts, and must make bold assumptions and carefully seek evidence in the course of case investigation. Delineate the scope of suspects first, and then collect evidence to exclude them.

Zhou Suying, Lao Ning, Xiaodan, and even Qu Cong are looking at the materials.

While looking at the materials, Han Bo called Wan Hailong, who was working intensively in the technical department of the Anle City Bureau, and said in front of everyone: "Hailong, don't just extract the DNA in the bloodstains on the murder weapon, but also extract and compare the DNA that may exist on the handle of the hammer. It is necessary to find out whether the bloodstains are the victim's, and at the same time, to find out whose hammer it is?"

"The Han detachment, their equipment is poor, there are fewer personnel, just a technical police officer who understands DNA testing and analysis, and it is estimated that it will take three or four days to extract and compare. ”

Almost forgetting that the Anle City Bureau didn't have this condition, Han Bo muttered: "Forget it, I'll tell the Feng detachment, you bring the sample back for testing, if other people's DNA typing is detected, I will ask the Feng detachment to collect blood samples and send them for testing." ”

Who is accustomed to using advanced instruments that are both accurate and trouble-free, who wants to do manual sequencing, and if you do it in the laboratory for a few days, you will be tired to death, Wan Hailong couldn't help but smile and said: "This is the best arrangement, Han detachment, then I will go back with Xiaobai first." ”

"I told the Feng detachment that you would go back, and say to Xiaobai, drive slowly on the road, and pay attention to safety. ”

After arranging all this, Zhou Suying just finished reading the medical records.

It's not that he didn't look at it seriously or studied it carefully, but that Zhang Dayong almost never received treatment since he was a child.

These medical records were not sent by his family to a psychiatric hospital or other hospital for special examination, but were examined in accordance with some regulations of the government, especially the civil affairs department.

It didn't happen in his own jurisdiction, Lao Ning was purely "accompanying the prince to study", he was not interested in this case, only interested in old friends and colleagues of old friends, put down the materials and asked curiously: "Political Commissar Zhou, how crazy is the suspect, and how crazy is it?"

"Typical congenital schizophrenia. ”

As the vice president of the Ankang Hospital of the Qiannan-Hong Kong Public Security Bureau, and as a psychiatrist, Zhou Suying has seen a lot of such cases, and patiently explained: "According to WHO statistics, even a person who looks healthy on the surface will carry 5 to 6 pathogenic genes for recessive genetic diseases. Therefore, when consanguineous marriage, it is very likely that both husband and wife carry the same recessive pathogenic gene, resulting in an increased incidence of recessive genetic diseases in offspring.

In the case of random marriage, that is, non-consanguineous marriage, because the couple is not related by blood, there are few identical genes, and they carry different recessive pathogenic genes, so it is not easy to form homozygous (patients) of recessive pathogenic genes.

Zhang Dayong's parents are cousins and sisters, and they are married by close relatives, but in fact, the same recessive pathogenic genes carried by his parents are homozygous to him, which is mainly manifested in mental retardation, schizophrenia, and severe mental and intellectual disabilities. Brain dysfunction, mental activity.

Sometimes hearing human language, suspicion, confusion, incomprehensible speech, emotional instability, irritability, excitement, sadness, nervousness, horror, sluggishness, forgetfulness, impulsiveness...... Although such patients are difficult to treat, some symptoms can be adjusted by medication to adjust the disordered neurochemical processes in the brain, but unfortunately due to difficult family conditions, they have not been treated. ”

"Serious?"

"From the medical record, it was not so serious before, although he was often lost when he was a child, he was still quite obedient, he was even able to help the family work at the age of fifteen or sixteen, his mental illness was not treated, but his body was developing normally, and the male hormones secreted more and more, coupled with the stimulation of family conflicts, his father went out to work, and his mother had no time to take care of him in order to make more money, and the lack of care led to the more serious condition. ”

Zhou Suying took out a document from the pile of cases, opened it and looked at it, and continued: "Last year, I had symptoms of irritability and anxiety, showing strong aggression, scolding people on the road, picking up bricks and smashing people, it is entirely possible to develop into murder, because he does not have the concept of murder in his consciousness." ”

Han Bo thought for a moment and suddenly raised his head: "Political commissar, I think even if he is a madman, it is impossible for him to kill people for no reason." ”

"I'm exactly what I'm going to say, most of the people with mental disorders have been stimulated, his third sister and third brother-in-law are not very filial to their parents, and they are not very good to him, and his sister and brother-in-law are all at home on the day of the crime, if he is stimulated by family conflicts, he will not go so far to kill people, and it is entirely possible to attack his sister, brother-in-law and even niece. ”

Zhou Suying paused and continued to analyze: "The materials are very clear, he walks around the road at the scene of the crime almost every day, and almost all the surrounding villagers, including the employees of the enterprise, know him.

When encountering a person like him, it is too late for ordinary people to hide, how can they provoke him, and it is unlikely that they will stimulate him and provoke him. In other words, it is possible that he did not do this case, but if he really did it, there must be circumstances that the special case team did not grasp, and there is a reason for committing the crime. ”

It's none of your business, hang high.

Lao Ning is not interested in this case, Xiaodan has been engaged in economic investigation for many years, and has always wanted to transfer the leaders of the criminal police team but did not agree, and finally encountered a murder case and had the opportunity to participate, I was really a little excited, and I read the materials very seriously.

He said coldly: "Han detachment, I don't understand one thing, how could he go out so early alone?"

"There's nothing surprising about that. ”

Qu Cong raised the materials in his hand and explained to his former comrades-in-arms: "His mother picks up rags to make money, and has to go through the garbage cans before the sanitation workers sweep the streets, and she gets up very early every day, and she has to leave home before dawn at three or four o'clock. Don't look at his sister and brother-in-law who are very fierce now, they didn't care about him at all before.

His mother was worried that he would not have breakfast after going out, so she would wake him up early to have breakfast and let him go back to sleep after eating. His life was irregular, how could he sleep after eating, and at first he came to the city with his mother to rummage through the garbage cans, and then he always caused trouble and didn't let him follow him anymore, so he was left alone around his home. (To be continued.) )