Since Cheng Wenming's legs have recovered from consciousness, he has served as the deputy criminal police detachment for years.

Although he has administrative positions, he rarely cares about management work. He is dedicated to researching, guiding or directing the investigation of major criminal cases in the city, especially the leader of the detachment, which is better to be a criminal policeman with a higher administrative level and higher rank.

He specializes in his profession and is definitely a good at thinking about difficult cases.

His analysis made some sense, so he almost misled it.

Li Jiaqi mentioned the current captain of the criminal police detachment for the second time. Han Bo realized that he had some preconceptions and picked up the case materials again. After reading them carefully for nearly ten minutes, he suddenly raised his head: "Old Cheng, you are all old criminal police officers. You should have seen the crime scene survey technology. One of the categories of the scene is the first scene, the second scene and the third scene.

The first scene refers to the scene where the deceased is killed, and the second scene is the scene where the corpse is dismembered or the corpse is thrown. If there is no dismemberment, the corpse thrown is the second scene; if there is dismemberment, the corpse thrown is the third scene. Since the corpse is decomposed, the third scene is often scattered.

Your previous inferences were made based on determining the place where the body was found was the first scene, that is, the murderer took the little girl to the small park to commit the crime, rather than the murderer committed the crime in the city and then moved the corpse to the remote small park in Nanzhou District. The slightest mistake was a huge mistake. These two conclusions are two conclusions of completely different natures, which directly determine the direction of the case investigation!"

The old leader's words were exactly the same as those of the immediate boss at the case analysis meeting.

The reason why the task force does not pay attention to the speculation about the crime committed by acquaintances is that it is believed that the small park is the scene of the body being thrown (the second scene).

Cheng Wenming believed in his intuition and wanted to speak but stopped.

Although Wang Jiefang had participated in the investigation, he was not a member of the task force and was not easy to express his opinions. He lit a cigarette and remained silent.

Li Jiaqi has been on the scene and inspected the body of the murdered little girl. She has a certain say. She can't help but say: "Director Han, it is not easy to transport a body from the city to the small park. Although the girl is not tall and has a heavy weight, at least we did not find any traces of throwing the body at the scene."

"The key is that there is no evidence to show that the small park is the first scene!"

Han Bo raised the case file and said seriously and seriously: "Although there were cases where acquaintances committed crimes and covered the victim's face when committing crimes, this situation is indeed not universal. Especially when I have mastered the DNA information of the murderer, checked the social relationship between the victim and the parents of the victim, and almost ruled out the possibility of acquaintances committing crimes, if I were the task force leader, I would not agree with your point of view."

"Director Han, but I think it's really possible that it was an acquaintance who committed the crime!" Cheng Wenming realized that he could no longer remain silent and insisted on his opinion again.

"You are an old detective, experienced. I believe in your intuition and your judgment. But this is solving a case, not other things. You must speak according to facts, not just rely on personal trust."

Han Bo put down the materials and took out a few photos taken during the on-site investigation, saying meaningfully: "The nature and motivation of the crime have been determined. You should conduct in-depth and detailed research on the crime scene, capture the clear traces on the scene and dig out shallow information, find and collect all clues that the murderer may leave, and then verify your speculation."

"There are almost no traces other than the burning corpse at the scene." Li Jiaqi couldn't help but interrupt.

What surprised everyone was that Han Bo suddenly smiled and looked at Li Jiaqi with a smile and said, "Jiaqi, are you a married person who has had children or a forensic doctor? You are not a little girl who knows nothing. It is very simple to verify Lao Cheng's speculation. Don't be afraid of trouble. Check the branches and leaves carefully to see if the sperm spots can be detected from the branches and leaves. If you can find branches or leaves with sperm spots, and confirm that the same person as the one extracted from the victim's vagina, it can prove that the small park is not the scene of throwing corpses and burning corpses, but the first scene."

Not everything can be "retained and released freely", such as ***!

Not to mention that the murderer will be very nervous when raped, even an ordinary person will overflow after his passion under normal circumstances.

More importantly, if the corpse is thrown away, the murderer cannot blatantly carry or carry the body to the small park, and will definitely be packed in a bag or other things. In other words, if the murderer's murder can be detected from the branches or leaves at the scene, it is unlikely that it will naturally overflow from the victim's body.

Li Jiaqi's pretty face turned red, and she subconsciously raised her hand to cover her mouth.

Zhou Suying was also embarrassed and hurriedly turned her head and pretended to look at the projection.

A word woke up the dreamer. Cheng Wenming's eyes lit up and he said excitedly: "Why didn't I expect it? Director Han, you helped me a lot. I will let Fang Hailong inspect the branches and leaves collected from the scene!"

"This is why the authorities are confused and bystanders are clear, so you must not be stubborn when investigating some difficult cases," Han Bo smiled slightly, pointed to a stack of photos at hand and said: "The site is well protected, which is worthy of praise. If the branches and leaves were not collected at that time, even if there were spots of the murderer's semen, now I think about it, I would not have the chance to verify it."

This is not as simple as the authorities being confused about the bystanders. Several criminal investigation experts have been invited one after another. Are they not bystanders?

The old leader has definitely a way to solve the case. Zhou Suying couldn't help but quip: "Director Han, you are not praising us, you are praising yourself."

"I'm not that arrogant to praise myself."

"I'm not kidding. You are really praising yourself. These rules for protecting the scene were set by you back then. We have always been Xiao Gui and Cao Sui. What is this not praising yourself?"

"What I set is what my superiors demand! If you talk about rules, there are too many rules and regulations, even if I set them back then, the key is to implement them." Han Bo did not want to brag about himself, and signaled that Cheng Wenming should be busy as soon as possible. He also talked about the serious matter: "Inspecting the social relationships of the victims, not only to check the social relationships in the real world, but also to check the virtual world. Whether the victim has a QQ account, does not usually go online, and has contacted netizens. All these situations need to be clear."

The old leader is a deputy director at the bureau level. He thought that he would no longer participate in the investigation of specific cases as a senior leader. He thought that his current job was to listen to reports and give instructions, but he did not expect that he was still so powerful.

Wang Jiefang was filled with emotion and felt ashamed of himself. He said embarrassedly: "I checked it. There is a QQ account with all classmates on it. No unidentified netizens were found."

“Where did you check it?”

"The school does not allow students to bring their mobile phones, and her parents are worried that playing with mobile phones will affect their studies, so they didn't buy her a mobile phone. But some of the classmates secretly brought their mobile phones, which contained her QQ number."

"What's the use of just registering an account? How does she usually surf the Internet?"

"Sometimes, if you borrow your classmates' mobile phones and have time to go to Internet cafes with your classmates, the security department has imposed penalties on Internet cafes, which are open to minors. In addition to borrowing your classmates' mobile phones and going to Internet cafes, during holidays, especially during winter and summer vacations, you can use your home computer to surf the Internet with your parents' permission."

"How do you confirm that she only has one QQ number? What if she has the second one?"

"Director Han, we considered the possibility that she was cruelly killed by netizens. Technical detectives and Internet police have checked her computer, but no traces of other QQ accounts logged in."

Han Bo pondered: "Dad is doing business, and his mother works in the second hospital of the city. She is just a baby daughter. She usually has pocket money and New Year's money during the Chinese New Year. If she likes to go online and chat with QQ, she may buy a mobile phone and get a mobile phone number secretly."

"It's possible, the key is that no one has seen it before, and he hasn't found it at her house."

"When I was in school, there was a female classmate in her class who liked to report small reports. She poked the teacher all the big things. I believe you encountered them when you were in school. The mobile phone was just like the villain books we read at that time. If the teacher knew about it, it would be confiscated. It would be very troublesome to be found by her parents. Judging from these materials, the victim was precocious and could not secretly buy a mobile phone and not let others know it. Check it again to see if she has it."

"Okay, let me tell Lao Cheng later and ask Lao Cheng to arrange someone to investigate."
Chapter completed!