The little catcher in the police station

Taking out the gloves and putting them on, Jiang Hao pinched the corpse, and the corpse had already shown obvious rigor.

"The deceased should have been dead for about ten hours. Pushing upwards, the specific time of death should be at one o'clock in the morning yesterday."

Xiao Wang, who was standing beside Wu Jie, saw Jiang Hao going down, glanced at the corpse casually, and knew the time of death of the deceased, and the time he said was about the same as the time estimated by their forensic doctor, so he immediately told Jiang Hao Some looked at each other with admiration.

[The expert group still has two brushes! 】

But this is just the beginning.

"Except for the strangle marks on the neck, there were no other external injuries on the body, and there were no signs of violent resistance during the assault. This is not like rape."

Jiang Hao found only one fatal wound on the body of the deceased, but if it was rape, there should be a process of resistance. During this process, other parts of the body, even the genitals, will have traces.

But after listening to Jiang Hao's analysis, Zhao Jun asked suspiciously:

"If there is no trace of resistance, it is not rape? What if it is a rape corpse? Kill first and then rape, and there is no trace of resistance, right?"

When other people heard this, it was the reason, and they all praised Zhao Jun's question.

"As for whether to rape first and then kill or rape the corpse after death, Zhao Jun raised this question well, even from a forensic point of view, it is difficult to distinguish.

As for how to identify specifically, you must first figure out a question, can you accept the result of "unable to identify"?If it is not accepted, then there is no solution to this problem. "

"Then we accept it? How do you say that?"

Seeing that everyone is very interested in this question, Jiang Hao started on-site teaching:

"'Unable to identify' means that there is no clear way to identify it, but it can be inferred from the details. Take the corpse in front of me as an example. If she was raped after death, then she has no physiological response and her muscles are relatively loose No, there is no shrinkage and elasticity. At this time, if foreign matter enters, it is difficult for the genitals to shrink.”

After listening to Jiang Hao's explanation, everyone suddenly realized:

"Isn't it easy to judge? Why can't it be identified?"

Isn't it easy to identify in this way?How did it become 'unidentifiable'?

"Of course, this is just an ideal state. If you arrive at the scene of the crime, it will be ever-changing, and all kinds of situations are possible. Let's take this corpse as an example. What if the deceased did not die when he was violated, but was just suffocated and comatose? Or, No green liquid was found on the body, so how can it be proved that she was raped?"

Jiang Hao mentioned many possibilities in a series, all of which can well overturn the result he just made, but he himself has no way to produce evidence to prove any of his judgments.

"Indeed, no trace of the murderer's green liquid was found on the bodies of the other corpses, and it's the same for this one!"

Hearing what Jiang Hao said, everyone suddenly remembered that in the previous cases, the police did not seem to find any traces of green liquid on those corpses.

So, if you can't even collect the green liquid, how can you tell whether the deceased was raped or not?

Is it just judging from the naked body of the victim?

These are just inferences.

And this is 'indistinguishable'.

"The life of this corpse, what if there is one!"

At this time, Wu Qinyi suddenly said with some fluke.

Wouldn't it be better if the murderer was careless and left clues?

"No chance, I don't know if you can smell a faint smell of alcohol."

Jiang Hao wrinkled his nose and said, his dog nose is really smarter than a dog.

Seeing everyone shaking their heads in confusion, he explained:

"When I first touched the clothes on the deceased's body, I found some dampness. Most people would think it was condensation water caused by the temperature difference between day and night, but this is not all. I think the murderer washed the body with alcohol before throwing it away."

"what?"

When everyone in the expert group heard this, they immediately cried out in surprise.

Because in the previous inspections, the police did not detect the presence of alcohol.

But 75% of the alcohol is medical alcohol.

The formula of medical alcohol is ethanol and distilled water. These two substances can completely volatilize into the air, so there will be no residue after volatilization.

The murderer used alcohol to clean up the traces on the body. This is why the police failed to find too many clues on the body during the autopsy.

If it weren't for the fact that the time of the incident was not too far away and the alcohol hadn't evaporated completely, this clue might have been missed again.

"Experts are indeed experts. This insight is really refreshing and enlightening!"

With such remarks, even the captain of the criminal police, Wu Jie, who stood aside, couldn't help but praise at this moment.

Xiao Wang, who was standing beside him, didn't dare to underestimate his age anymore.

It vividly made him revisit the idiom of 'there is no worthless man under a great reputation'.

Chapter 989 Human nature cannot stand the test

Jiang Hao's on-site teaching allowed the expert group and Liangxi's public security criminal police to see what it means to be professional.

This is professional!

"This murderer is very cunning. From the fact that he can carry alcohol and other tools for committing crimes, it can be seen that the murderer is obviously premeditated.

Captain Wu, this should not be the scene of the first crime, but more like the dumping site where the corpse was transported here. If you want to throw the corpse, the murderer must use a vehicle. Do we have a surveillance checkpoint here? "

"We have seen the environment before. There is indeed a checkpoint video on the main road of Tiangouba, but that is not the only way to go. The conditions in the village are limited, and not all surveillance checkpoints are covered, so now I also say Forbidden, have you photographed the murderer's vehicle?"

Hearing what Wu Jie said, Jiang Hao knew that monitoring and investigation would be difficult, and it would be better to simply have one thing, that is, so far, the scene of the crime is still relatively fresh, even if the murderer is more careful and has cleared some traces of the crime.

But this is not absolute, because with Jiang Hao's skills, he can find details that are difficult to distinguish with the naked eye.

"Deduction technique!"

The moment the skill was used, Jiang Hao's feeling of being out of his body came again.

The expert team around him and the criminal police such as Wu Jie seemed to be in different time and space dimensions, and they could no longer affect Jiang Hao in the slightest.

Time is turning back, and clues are reappearing.

Jiang Hao's brain quickly analyzed and restored the situation on the spot based on the traces left in the ditch and all the surrounding conditions.

Since the traces on the corpse had been cleaned with alcohol, Jiang Hao did not find any valuable clues.

But near the ditch, Jiang Hao found a lot of information, many of which were traces of the police coming.

Relatively speaking, they still destroyed some original traces.

Ten seconds have passed.

Jiang Hao immediately withdrew from that detached state, and casually asked Wu Jie beside him:

"Has our car ever been driven in?"

"No, all of our cars are parked outside."

Hearing Wu Jie's answer, Jiang Hao nodded and walked to the road not far away.

Among the messy tracks, he found a tire track.

However, due to the traces on the ground, they are almost invisible to the naked eye. In addition, there are many people walking and some structures have been damaged. Even with a purple light, it is difficult to perfectly reproduce the traces and take pictures to preserve them.

So Jiang Hao wanted to follow this trace to see if he could find a clearer trace.

Others didn't know what Jiang Hao was looking for, but they couldn't take the initiative to ask, otherwise they would appear ignorant.

So a group of people followed Jiang Hao and searched on the ground.

"found it!"

Hard work paid off, Jiang Hao finally found a place following the traces that only he could see.

This location is a small three-fork intersection. At that time, the car driven by the murderer turned a head here, and half of the tire was accidentally pressed into the mud next to it.

"Record this tread pattern."

In fact, the pattern of the tire is also an important clue, it is like a human fingerprint.

Each brand of tires has a different pattern. According to the brand, specification, application, etc., there are many kinds of tire patterns.

There are roughly five categories: 1. Vertical patterns, 2. Horizontal patterns, 3. Both vertical and horizontal patterns, 4. Off-road patterns, and 5. Mixed patterns.

Through the analysis of the pattern, it is also possible to find the make of the car driven by the killer, thereby narrowing the scope of the screening.

After the on-site investigation was completed and Jiang Hao's consent was obtained, the body was taken away by the forensic department. At the same time, the evidence at the scene was also collected.

So, Jiang Hao took his master and went back to the Liangxi Public Security Bureau first, using it as a temporary headquarters to carry out related work.

The meeting that was not finished in the morning will continue in the afternoon.

At the same time, with the new case, many new clues also surfaced.

All the members of the expert team were present, and the Liangxi Police Department arranged for Wu Jie to be their representative to cooperate with Jiang Hao and the others in carrying out related investigations.

"According to all the evidence we have so far, I already have a general idea in my mind, let me talk about it first and discuss it with everyone."

Jiang Hao has a photographic memory. During the meeting in the morning, he had already remembered the other five cases in his mind.

Combined with the case just now, Jiang Hao already has some ideas:

"Regarding the identity of the deceased, I think they are likely to belong to a special occupation group, and most of them are not locals.

This is why, until now, no one has come to identify the corpse.

Moreover, generally such practitioners will also require the other party to take safety measures, which also caused the police to fail to collect relevant green liquid at the scene. "

As soon as Jiang Hao finished speaking, Wu Qinyi immediately raised a question: "Special occupations? They should have chicken heads, right? Why didn't the other party come to the police station to identify the body?"

"Is Jitou here to identify the dead body? Or to surrender himself?"

"But, after all, this is a matter of human life!"

Indeed, human life is at stake, but, compared with one's own interests?

Human nature cannot stand the test, Jiang Hao shook his head:

"Don't underestimate human nature. Under the premise that you may expose yourself and lead to fines and jail time, people will seek advantages and avoid disadvantages!"

When dealing with the topic of human nature, Jiang Hao really can't understand it very well, and the top students of these expert groups are still a little innocent in their minds!

"But, if these girls are special professionals, why did the murderer kill them? What is the murderer's motive?"

When Xu Danying heard this, she couldn't help asking:

"If it's robbery, you can get it once, why do you have to do so many cases one after another."

No valuables were found on the body of the deceased, apparently stolen by the murderer.

Xu Danying has also learned about many such cases. According to past cases, it is unlikely that robbery and murder cases caused by soliciting prostitutes will become serial cases.

Because the purpose of soliciting prostitutes is actually to solve people's physiological needs, but in the process, they may have some misunderstandings, which will lead to the disaster of death.

But there are very few people who come to solicit prostitutes directly for the purpose of killing people. Unfortunately, maybe this case is the case.

"Perhaps the first committing a crime aroused the murderer's inner desire to commit crimes, and the fact that the police have not caught him for a long time can also bring him great satisfaction."

Bai Xiu also expressed her own views from the perspective of criminal psychology.

Slowly, during everyone's discussions, the murderer's motive for committing the crime was slowly restored.

This is a serial murder case with the purpose of soliciting prostitutes and robbing and killing people.

With the motive of committing the crime, there will be guiding opinions on the direction of solving the case.

Chapter 990 Color Service

Jiang Hao immediately asked Wu Jie to conduct a card investigation on all the special practitioners in this city, especially those who had received administrative punishment. As insiders, they were relatively well-informed.

Secondly, there are small advertisements on the side of the road.

If the murderer commits crimes on the move, if he wants to quickly know the local chicken head, he can only use nearby people and these small advertisements.

"Yes."

The efficiency of the expert team in solving the case once again made Wu Jie feel that they deserved to be people who came down from the provincial department.

"Also, investigate that tread pattern as soon as possible to see what brand of tires are and what models of models they have supplied, and give me the answer as soon as possible."

Jiang Hao didn't let go of any clue, and often a very small clue may be the key to solving the case in the end.

"The rest of you, now go back to the location of the case you were in charge of before, and use the same method to investigate these practitioners. If you can find some clues, then the case will take a big step forward."

"Yes."