Chapter 82: Master of Psychological Profile

"Boss. ”

"Boss. ”

"Captain. ”

In the Liangcheng Criminal Police Team, Chen Da sat in the middle of the big office, surrounded by brothers who had changed their lives, and at that moment everyone looked at him with anxious eyes, waiting for him to speak.

Chen Da came to the criminal police team to record the record, after all, he was the first witness at the scene of the crime, plus more than ten years of criminal police identity, everything he could think of and observe was the most helpful criminal police perspective, of course, he had to ask clearly.

"Uh......" As soon as Lao Chen spoke, all the criminal police began to concentrate: "The deceased has been dead for more than nine hours, his limbs are obviously stiff, there are no wounds on his body, and he may die of suffocation." ”

"The murder scene was so clean, so clean that the thief knocked over the water dispenser, and the water didn't get much dust on the surface. ”

After saying this, Chen Da groaned, okay, those people in the criminal police team didn't dare to come out.

"I feel that the murderer has a habit of cleanliness, and the crime scene is likely to have been over-cleaned. ”

Xiao Liuzi hurriedly answered: "I did the on-site survey with the engineers sent by the city bureau, it was all clean, and I couldn't find a single hair in the place where everything could be touched, I thought the deceased had a habit of cleanliness." ”

Chen Da continued: "The murderer came from a wealthy family, was highly educated, extremely adventurous, obsessive-compulsive, and a perfectionist......

Xu Cangsheng leaned his shoulders against the door frame of the big office door and said, "Are you chattering again?"

Everyone in the room looked back at him, Xu Cangsheng pouted and said unmoved: "It's not that I don't believe in any profiles, but you can catch thieves at a glance, so why do you need the police to investigate?"

"This is not a murderer who can be found through investigation at all. After Lao Chen said this, he explained to himself: "If I guess correctly, the cleanliness of the scene should not only destroy the evidence, but also a habit." Think about it, if we go to a strange city and don't know much about housing prices, how can we distinguish the gap between the rich and the poor in two residential areas? It must be that the rich people's places are clean and tidy, and the poor people's places are dirty, messy, and poor. ”

Xu Cangsheng was not convinced, and asked again: "How do you know that the murderer is highly educated?"

"The deceased is a medical student, he is Kochi, in order to open a dental clinic and Liu Yun borrowed 30,000 yuan, the probability of this kind of woman and a man who does not have knowledge is very low, if you carefully look at the comparison of Chinese men and women's marriage education, you will find that men often do not mind women's education, and women are more looking forward to the exchange of souls after having a high education. ”

This is just a point for Chen Da to determine the identity of the murderer, and there is another point that Lao Chen did not say, that is, he can clean the scene to the point that even the 'on-site investigation engineer' who is waiting for Xiao Liuzi in the city bureau can't find the slightest clue, which is not only a problem that can be solved by the length of time, but also requires a lot of knowledge.

Not to mention that Lao Chen guessed that the murderer was obsessive-compulsive and perfectionist, the only thing that puzzled the rest of the officers was: "Why do you say that this murderer is extremely adventurous?"

This question is very good and crucial, how did Chen Da determine this? In fact, it is very simple, when the criminal police deal with similar home cases, the important factor in judging the identity of the murderer is the door lock, the door lock is warped, the murderer is likely to be a stranger, at least the deceased did not open the door for the murderer, and the opposite is true.

However, in that room, Chen Dalin glanced at the door lock when he went out, and found that the door was a combination lock, which means that it is impossible to open it with the tools that the thief showed in front of the safe, otherwise it will definitely touch the alarm, the thief does not have a decoder, and he brings traditional tools, so, who opened the door?

If the deceased could open the door before he died, he would have had the opportunity to cry out for help, but no one heard the cry for help, so who else could it be but the murderer?

What does a murderer want to do when he leaves after killing people and dealing with the crime scene? I'm afraid it can only be for people to find the body as soon as possible, right? In order to prevent people from finding the body before he leaves the community, he hides the body in the closet, and the person who even thinks about this is not a perfectionist? Otherwise, how can there be a burglar burglary the next morning. If Chen Da guessed correctly, the thief must also live in the same unit in the same community, and he must have lived on the same floor, otherwise he would not have found out that the door of this house was not closed, and the others took the elevator to go up, who has the leisure time to look at the door of other people's houses, and he is not a security guard.

According to Chen Da's guess, this thief is at most a person who lacks money in hand and wants to make money, which is full of loopholes, and novices are like this.

"The forensic report is out!"

Da Yang rushed in panting, holding a report and about to send it to Chen Da in the house, Xu Cangsheng shouted at the door: "Which cut~" Then he turned his head and handed over the report very embarrassed.

Xu Cangsheng didn't know whether it was intentional or not, but he read out the report in front of many criminal policemen, and Chen Dake was still here: "Cause of death: suffocation, suffocation by someone choking the carotid artery in the neck." The murder weapon may have been a hemp rope, and the medical examiner found thorns in the skin epidermis of the deceased's neck. "Search

After reading this paragraph, Xu Cangsheng deliberately looked at Chen Da and shouted: "Old Hao!"

"Take someone to check the hemp rope, there are not many people who use hemp rope these years, and if you find this rope, the murderer will not be able to run far. ”

"Not true. Chen Da said: "Since the murderer is not a fool, he can still handle the scene so cleanly, how can he leave such traces of the murder weapon that are so easy to find clues?"

Xu Cangsheng ignored him and glanced at Hao Yong: "Hurry up." Hao Lao left crookedly, looking back at Chen Da apologetically, as if to say: "You are no longer the captain." ”

Of course, Chen Da understood that gaze, and could only look at Xu Cangsheng with a consultative look: "Believe me, sending someone to keep an eye on Hao Lao Crooked should have a receipt." ”

"What do you mean?" asked Xu Cangsheng.

"There is no reason for the murderer to leave clues for no reason, unless this is his pleasure, since it is fun, of course, he must choose the most intuitive way to appreciate, who often goes to the place where hemp rope is sold to observe, who is the main object of investigation. ”

This time, Xu Cangsheng was not sarcastic, he still understood the reason: "Six sons, six sons!"

Lu Xianzhao stood up a little reluctantly, it was not that he was unwilling to work, but he didn't want to use his master's idea to add medals to Xu Cangsheng.

"Hurry up!" Xu Cangsheng urged.

Everything was arranged, and when he turned around, he found that Lao Chen was staring at him: "What are you looking at?" ”

"Have you ever fought against perverts in your career?" Chen Da asked without warning.

Xu Cangsheng now regards the criminal police team as his own territory, and he does not allow anyone to be here, so he questions himself: "Is there a disease? This is not the United States, many criminal police officers may not have dealt with perverts in their lives, what do you want to do in this shock, alarmist!"

At this moment, a voice came from behind Xu Cangsheng: "He's right, the murderer is likely to be a pervert." It was Liu Yun who spoke.

Liu Yun went upstairs after calling the police, and also went to the scene of the crime, of course she needed to make a record, and she happened to hear this conversation when she finished making the record and looking for her man.

"I saw the wound...... "Women are still more delicate than men, what Chen Da didn't see, but she saw:" I also studied medicine, and I also took forensic medicine when I was in school, the murderer should be suffocated by strangling the deceased's neck with a rope with his forehand, which will make the distance between the two very close, the deceased's struggle will be completely perceived by the murderer through the body, judging from the fact that there are no traces of excessive struggle at the scene, the murderer's strength can definitely suppress the deceased, then, why strangle her at such a close distance instead of choosing a faster way to kill the other party?"

Xu Cangsheng rolled his eyes: "Yes, there is another Sherlock Holmes." ”

"Please believe Chen Da, if the murderer is a pervert, his reaction to the police investigation will be more difficult to figure out than that of ordinary criminals. ”

Lao Xu really doesn't like to listen to it: "You two have finished recording your confessions, right? Who is it, send Team Chen home, people can rest, we still have to investigate the case." ”

With that, he went back to his office.

When all the criminal policemen looked at Lao Chen, Chen Da got up and walked to the door, grabbed Liu Yun's hand and said, "Let's go." ”

"Hmm. ”

The two came out hand in hand and didn't let anyone send it.

When they reached the corridor of the criminal police team, and then there was the staircase, a call suddenly came from the iron fence of the temporary detention place: "Chen Da!"

Lao Chen looked back, only to see Zhang Jinhu glaring at him and saying viciously: "You lied to me!"

Chen Da left him with the warmest smile in the world and replied, "Uh-huh." With that, he took the charge alone and turned to leave.