These words should not be said, and when he said it, Deng Ju regretted it a little, and immediately reminded in a very serious tone: "Don't think about it elsewhere, Comrade Yue Guozhi is a criminal police officer, and he has handled no fewer major cases than you Cheng Crazy, but the case is different from the case, and he is not very good at investigating murder cases like 3.29, not to mention that people not only can solve cases, but also served as the deputy director and acting director of the Nangang Public Security Bureau, and he has worked in management positions for so many years and has leadership ability. ”

"Deng Ju, I understand, I won't think otherwise. ”

"Actually, I wanted to talk to you a long time ago, you are a first-class heroic model, and you want to play an exemplary role. I know what kind of person you Cheng Luozi are, you can't form gangs, you can't intrigue, but your words and deeds, every move can affect many people, it can be said that many people's police in the detachment are all looking at you and Comrade Zhou Suying, you take the lead, take the lead in respecting the leadership, Comrade Yue Guozhi can stand firm as soon as possible, and can establish prestige. “

Han Bo also got up early, although he only slept for more than four hours, he had too much sleep for nothing in the past few days, and he was not sleepy at all.

After getting up, I was not idle, first my wife urged the three children to have breakfast, sent them to school after eating, visited the vegetable market on the way back, and chatted with a few old men when I came back after buying vegetables.

chatted until half past ten o'clock, when I received a phone call and met Zhong Xiaoming, the apprentice of my old comrade-in-arms.

"Han Ju is early, sister-in-law is early, these fruits don't matter to me, they were brought by Wang Ju. "Zhong Xiaoming is the first time to see the legendary Han Ju, but not the first time to see Li Xiaolei, although he is very excited and excited, but he is not particularly nervous.

The young man is very capable, no wonder Cheng Wenming has cultivated him carefully.

said that he was sent to the grassroots level, but it turned out that he was stuffed under Wang Jiefang.

Han Bo took the initiative to stretch out his hand and shook it, and was about to get into the car with him, when Li Xiaolei, who had just handed over the fruit to Han's mother, suddenly said, "Han Bo, Xiao Zhong, I'll go with you." ”

"Let's go?" Han Bo was laughed at.

Li Xiaolei subconsciously looked down at the sneakers she had changed into when she came back, and said excitedly: "Anyway, I'm fine, I'm idle, I'm idle, it's better to go out with you." ”

If she is in Shenzheng, the impact of taking her to handle the case will obviously not be good.

But this is Nangang, not Shenzheng, just helping old comrades-in-arms, not even assistance.

She was rarely interested in solving the case, Han Bo didn't want to disappoint her, and pulled the car door with his hand: "Okay, let's get in the car." ”

"Xiao Zhong, is it okay?"

"Sister-in-law, why do you ask this question, we can't invite a distinguished guest like you. ”

"Okay, let's go!"

accompanied her husband to catch a rape murderer who could even do it to a little girl, Li Xiaolei was elated.

Han Bo's mind was not entirely on the case, and as soon as the car drove less than two kilometers, he asked coldly: "Xiao Zhong, when was Yue Zhi transferred to Nangang, and what position did he hold before being transferred to the head of the criminal police detachment?"

How could a leader ask this question!

Zhong Xiaoming paused for a moment, and hurriedly said: "Yue Zhi is from Dongzhou, and he was transferred four years ago. Secretary Wang of the Municipal Party Committee felt that the Nangang Municipal Bureau was not effective in cracking down, so he tried to transfer Yue Zhi from Dongzhou. ”

Nangang is a county-level city in the middle of Nanzhou District and Sigang County, and the secretary of the city-party committee is generally a member of the standing committee of the Nangang-City Municipal Party Committee or the vice mayor of Nangang-Hong Kong City.

Han Bo groaned: "So Secretary Wang is also transferred from Dongzhou?"

"Yes, Secretary Wang is from Haigang, but he has been working in Dongzhou. ”

Zhong Xiaoming paused, and then said: "I heard from the master that Yue Zhi was engaged in technology at the earliest, and now he is a senior engineer, with the second-level appraisal qualification of trace technology, and he is still a criminal investigation expert hired by the province, and he has published many articles. I don't know my previous resume very well, but I only know that after being transferred, I first served as the deputy director and acting director of the Nangang City Public Security Bureau. Maybe Secretary Wang was transferred away later and failed to straighten out. ”

It turned out that the foundation was unstable, no wonder even Li Jiaqi was not very convinced when he mentioned the detachment leader.

Doing criminal investigation is not doing other work, and if you don't have the support of the leadership, and you can't solve a few big cases, it is difficult to establish your prestige. If you meet a few more subordinates with old qualifications, it will be even more difficult to open up the situation.

One of the two deputy detachments is a first-class heroic model in the national public security system, and the other enjoyed the treatment of deputy department level as early as eight years ago, and they must have academic qualifications, qualifications, and ability.

Han Bo really sympathized with the new detachment leader of the old unit, and at the same time felt that it was not good to go on like this.

I was wondering if it was a wake-up call to the Deng Bureau, cadres can't be appointed like this, they should be adjusted, and they should be moved, and they can't be made out of a "Liangzhuang Gang" because he has worked in the Nangang City Bureau and has served as the deputy director of the Nangang City Bureau for many years, Zhong Xiaoming said again: "Yue Zhi invited another criminal investigation expert who is engaged in criminal psychology, and my master went to the airport to pick him up, so he can't come today." ”

"Where did you get it?"

"I don't know, but the person is from Bei-Beijing. Zhong Xiaoming felt that this was a rush to the doctor, and said with a little disdain: "What kind of psychological close-up, psychological portrayal, when this is a TV series, and I still read mental detectives, anyway, I think it's unreliable." ”

It's normal for young men to think so, and it can be said to be a common phenomenon.

However, in many cases, whether it is the traditional criminal investigation mode or the modern investigation mode that relies more and more on science and technology, it often exposes a drawback, that is, it is impossible to start with the delineation of the scope of the criminal suspect, or only through the positioning of monitoring and various technical investigation methods to determine the spatial or physical scope of the criminal perpetrator.

Once there is no monitoring, technical investigation methods are difficult to use, just like the 3.29 case, investigators can only use the traditional means of touching and sorting like headless flies, one by one, one by one, fortunately, the DNA information of the suspect can be used by investigators to gamble, to see if it can be compared with someone's DNA, it is good if it succeeds, if there is no clue at the end of the investigation, this murder case may really become a backlog.

As long as the case can be solved, does it matter what means are used, as long as it is legal!

Han Bo looked back at Li Xiaolei, who was about to speak and stopped, and said lightly: "The analysis and reconstruction of criminal behavior and psychology is not a science at present. In China, it is still at the embarrassing level of excessive deification by the people and excessive disdain by the investigation department. Investigators from many grassroots criminal investigation departments often ask: Can you portray a criminal suspect in a clear and accurate way? Can you clearly describe the image of the criminal suspect, his location, and who is the murderer? The people who ask these questions are obviously watching too many movies and TV series, and those who can do all of the above are magic sticks, not police officers who are engaged in criminal psychological analysis. ”

"Then what can they do?" asked Li Xiaolei curiously.

"It may be simple to say, or even very important, but it is not an easy task and requires a lot of professional training and experience. For example, with the technical personnel to restore the crime scene, the technical personnel are responsible for the restoration of the suspect's externalized actions, and they are responsible for the inner dynamics, which include psychological state and mental state, to put it simply, to figure out why the suspect committed the crime; ”

Han Bo paused, and added: "Xiao Zhong, your master thinks that the murderer and the murdered girl know each other, this is an acquaintance who committed the crime, in fact, it is also a psychological portrayal, but he himself doesn't know that you don't think so." ”

"Han Bureau, my master relies on experience. ”

You can't learn from him, at least not completely, and you must not only accumulate experience through handling cases, but also learn more theoretical knowledge. ”

"Yes!"

While we were chatting, my phone rang.

Han Bo pressed the call button, raised his mobile phone and asked, "Su Ying, is there any news from Fang Hailong?"

"Han Bureau, your method is too good, Fang Hailong and their eyes have successfully detected sperm spots on half of the leaves after a night of screening experiments! Now it is basically certain that Lao Cheng's inference can be established, the small park is the first scene, and the murderer raped the little girl in the small park and killed him. ”

It is not so easy to kidnap the murdered girl to a small park in broad daylight, how smart the children are now, not to mention that the murdered girl was born in such a family.

It is very likely that an acquaintance committed a crime, and there is a high possibility that there is an omission in the previous investigation.

Without waiting for Han Bo to speak, Zhou Suying said excitedly: "They use the sperm-sperm detection method, although the sperm-spot is already small, and the sperm-sperm count is not very satisfactory, but after repeated experiments, they chose a high concentration of infusion and appropriate staining solution to improve the sperm detection rate." The staining method is HE staining, and generally only one complete typical sperm can be found to confirm the sperm spots, but they were lucky to find four!

If they are a little careless, there is a problem in the impregnation process of the old sperm-spot, resulting in the broken tail of the sperm, and only the sperm-head can be detected, then it is necessary to identify it with trichomoniasis, yeast, etc., then it is not so fast, and it will definitely be delayed for a long time. ”、

is worthy of being the deputy detachment leader in charge of forensic science and technology, and talks about experimental methods like a treasure.

The old comrades-in-arms became more and more professional, Han Bo was very pleased, and couldn't help but smile and ask, "Is there a comparison?"

"It's been compared, just compared to it, Fang Hailong has been doing it until five minutes ago, and he is sleeping on the table at this moment. ”

Working for dozens of hours in a row, you can imagine how tired and sleepy Fang Hailong is.

But this is not a trivial matter, Han Bo muttered: "Suying, genetic markers are the key, the genetic markers in the individual's *** should be the same as those in the person's blood or saliva, so as to allow the comparison of samples in different tissues and organs, but you only have the residue taken from the victim's genitals." ”

"Han Bureau, Hailong was taught by you back then, and it is very rigorous, and you will not easily issue an appraisal report without 100% certainty. He conducted a detailed comparison of the two samples and confirmed that they were left by the same person, and the same blood type O, and the DNA test results were also the same. ”

"Okay, if he dares to make a guarantee, you can now consider redefining the direction of the investigation. ”