National Forensic Doctor

Chapter 264: Full of Flaws

The next day.

Shunling Township.

Perhaps it is because it is in the far suburbs of Changyang City, perhaps it is because of the higher average income, or perhaps it is because of the better natural environment. Driving through the slightly chaotic junction of towns and villages, the core area of ​​Shunling Township is actually a bit peaceful and beautiful.

The slightly turbid flooded river passes through the city from the upper reaches, bringing abundant water vapor and wind.

The arch bridges across the river include antique stone bridges and concrete bridges that can accommodate heavy-duty vehicles, which divide Shunling Township into two parts.

One part is the continuous quiet and beautiful township life, and the other part is the fierce and chaotic logistics park and industrial area.

Most young people are active in the factory area, and occasionally come to the old city to hang out, mainly men and women in love or men and women.

Going a little deeper into the texture of the township, that is, the residential area and living area, a large number of buildings from the last century come into view.

Shunling Township did not carry out large-scale demolition, but adopted the model of building a new district. Now, the expansion of the new district also uses the model of the new new district. Time in the old city seems to be fixed.

The government has made a lot of efforts in the appearance of the city. From the perspective of outsiders, you can see beautiful exterior walls and streets, which have attracted some leisure people, but the number is not large and the average age is relatively old.

Seeing Jiang Yuan's eyes looking at outsiders, Wang Chuanxing, who was in the same car, explained sensitively: "There were not so many tourists three years ago. It can be said that there were basically no tourists. Outsiders were all merchants, drivers, or factory workers. The current farmhouses have only been built in the past two years, and they all go to the surrounding fishing parks..."

"Did the victim involve these?" Wei Zhenguo asked: "For example, the plan of demolition, renting or selling houses, decorating homestays, etc. Have you checked it?"

This is asking about economic factors.

According to Wei Zhenguo's understanding, the situation encountered by the deceased is very similar to the model of a black society. However, to achieve the level of murder, either the benefits are huge or the murderer is extremely arrogant, which is somewhat inconsistent.

Wang Chuanxing also knew what Wei Zhenguo meant, so he said: "I have asked people around me, and there are no such economic disputes. I have never heard of any. There are some people who engage in theft and robbery in the logistics park here, but they are small groups at most."

Wan Baoming said more directly: "Because of this case, all the groups here have been screened, and several people have been imprisoned. The interrogation was also very careful. There are no clues."

"Go to the scene directly." Jiang Yuan urged a little when he heard this.

After reviewing and thinking yesterday, he already had some ideas. He felt that he had almost understood the work of the special case team where Wang Chuanxing was.

One advantage of the case in the provincial capital is that the various levels responsible for the case have high quality. For example, photography, in Ningtai County, is a part-time job for on-site investigation, but in Changyang City, the full-time criminal photography technicians take good pictures both in terms of the overall picture and the details.

This has laid a good foundation for seeking help in the case.

For example, now, if Jiang Yuan wants to use bloodstain analysis or footprints, he mainly relies on these photos.

If the photos are well taken and the scene is fully photographed, Jiang Yuan will be more confident. _o_m

He went to the scene to compare it with the scene in the photos.

Wang Chuanxing and Wan Baoming had no objection, as they were both here to accompany him today.

The car stopped at the street entrance, and a group of people went into the alley and walked for about ten minutes to the scene of the crime.

The small courtyard where the deceased once lived has been completely abandoned.

There is a big lock hanging in front of the door, and grass grows on the wall, but no one cares.

The houses of the previous neighbors are similar. Mu Zhiyang ran to find someone to ask, and they all moved out shortly after the crime.

Several people did not find it strange.

It is not uncommon for neighbors who are close to the crime scene to be unwilling to continue living in the old house. In big cities, many people may have no choice, not to mention that there is a haunted house next door, and many people live in haunted houses to save hundreds of thousands of dollars.

Houses in rural areas are not worth much, and buying a new one often costs only tens of thousands or hundreds of thousands. Some people can even move in with their children.

Wang Chuanxing used hydraulics directly.

Chapter 264 Full of flaws

Pliers, cut the lock open, and opened the door.

When the door opened, a few yellow papers floated out, blown high by the wind.

Mu Zhiyang couldn't help but hug his shoulders.

Creak.

The door of the old house was swaying.

The gray-black wooden door had some paint peeling and was a little deformed, but there was no blood stain.

"The scene has been cleaned up," Wei Zhenguo looked back and forth.

Wang Chuanxing said, "Yes," and then said, "At that time, they were asked to keep the scene as much as possible, but it was estimated that it took too long."

The work of the special task force has basically stopped, and the family members can probably feel it.

Jiang Yuan took out the tablet computer, flipped out the photos, and while looking at them, he verified them with the surrounding environment.

After walking around, Jiang Yuan returned to the door and found a photo of a corpse. He looked around and said, "I want to pose for a photo by myself."

"Xiao Mu, you do it." Wei Zhenguo ordered his apprentice without any burden.

Mu Zhiyang sighed, "I just washed my police pants last week."

As he spoke, Mu Zhiyang glanced at the position on the picture and lay down swiftly.

Jiang Yuan compared the photo again and helped Mu Zhiyang to adjust his posture.

Mu Zhiyang moved on the ground like a worm.

After the arrangement was completed, Jiang Yuan stood up, took a photo, and then said: "Hold up a little, you are a little taller than the corpse."

Mu Zhiyang then curled up a little.

Jiang Yuan said to Wei Zhenguo again: "Captain Wei, stand here, bend down and touch to see where you can touch Mu Zhiyang."

Wei Zhenguo looked at the location pointed by Jiang Yuan and knew it was the location where half of the bloody footprints were left that day, so he suppressed his curiosity and followed the instructions.

Wei Zhenguo was a little over 1.7 meters tall, of standard height. He bent down and reached out from the side, just enough to touch Mu Zhiyang's chin.

"How do you say this?" Wei Zhenguo stood up and asked.

Wang Chuanxing and Wan Baoming also looked over curiously.

Jiang Yuan looked at the positions of Mu Zhiyang and Wei Zhenguo for a while, then looked at Wan Baoming and said, "I don't think this case was a random crime."

"I can see that you have already had an idea. There is a problem with the footprints." Wan Baoming had expected it. However, the fact that he committed a random crime on the spot was a matter of understanding. At this time, he was just waiting to hear Jiang Yuan's description.

Jiang Yuan nodded and said: "Judging from the blood stains, this footprint is the most unnecessary."

Jiang Yuan circled the positions of Mu Zhiyang and Wei Zhenguo with his hands, and said: "It takes time to form a pool of blood. If the murderer doesn't plunge the knife into the victim's chest, draw the knife and leave, he will not leave bloody footprints. .This is the first point."

"Maybe I'm just looking for belongings." Wang Chuanxing probably discussed similar topics in the task force.

"Are these belongings carried by an old man who lives alone?" Wei Zhenguo retorted after hearing this.

"Maybe it's a key, or a watch, a necklace, or an accessory such as a pocket watch." Wang Chuanxing has an established answer here, and it makes sense.

Jiang Yuan shook his head secretly.

Just as Jiang Yuan originally imagined, the bloodstain analysis and footprint identification level of the Changyang City Criminal Police Team is only about 400 to 500%. They have a certain ability to analyze and judge, but in the end they are unable to make big problems.

In today's era, bloodstain analysis at level 5 + footprint identification at level 3 is equivalent to a score of 800 points, a pure slump.

If Jiang Yuan is given a crime scene, he has a high probability of solving the case in a short time, just like what the criminal investigation masters did decades ago.

Blood stains + footprints were the standard configuration for technical criminal investigation experts 40 years ago.

Now it's about spot survey + photo investigation + fingerprint + DNA. Speaking of which, today's criminal investigators are definitely more efficient and effective in solving crimes, but they always have different adaptability to different cases.

In some cases, when there are enough clues, no matter which series the master is, there is a way to break through and solve the case. This is also the norm in most cases.

But in some cases, it is necessary to talk about palatability.

Like the case at hand, another hope for a breakthrough should be forensic medicine. But Jiang Yuan also read the forensic report, and it was nothing.

Chapter 264: Full of flaws

What clues can be provided.

At this time, Jiang Yuan was like a student who had just scored 800 points on a question, swiping his hand and saying:

"I have another idea about what the murderer was doing when he stepped into a pool of blood and bent over."

"I think he was trying his nose or carotid artery to see if the victim was dead."

"Stepping into a pool of blood means that the murderer waited at the scene for a while. I think he waited at least for more than a minute. For a murderer, this time must be very valuable. First update"

"It is not appropriate to search for property, not to mention that the murderer can use a knife to coerce him to take away the property. Even if he kills first and takes the property later, there is no need to wait. Even if the victim has a little ability to resist at this time, so what. Victim The person is a thin old man. After being stabbed, he can be searched without waiting for his death. It would be easier if two people committed the crime. "

Wang Chuanxing's eyes widened when he heard it. Although it was not a surprising theory, Jiang Yuan's analysis to this extent was still slightly beyond his expectation.

Jiang Yuan couldn't help but think of Liu Jinghui at this time. He made his inference based on blood stain analysis, but he didn't know how Liu Jinghui would reason if he got an evidence report with 400 points.

"Let's stop here for the purposeful speculation. Let me talk about the footprints themselves." Jiang Yuan flipped through his phone and said: "I see that you also found several footprint experts and gave judgments. Let me summarize, from 40 There are people between the ages of 65 and 65..."

Jiang Yuan paused and said: "The footprints at the scene are chaotic, and there are only half bloody footprints. There are indeed many variables in the analysis. I prefer to be older. 55 to 65 years old, you can even relax a little more."

This time, without waiting for Wang Chuanxing to express his opinion again, Jiang Yuan said again: "Let's talk about the blood stains next. I think this one is more important."

Jiang Yuan quickly found a few photos, then half-crouched in front of the door and said, "Let's not talk about other parts. Judging from the photos taken, the most important point is that there are gaps in the splash patterns here. …”

Jiang Yuan placed a circle around the crack of the door. He stood a little further in front and said: "Based on the forensic autopsy report, I believe that the murderer was standing where I was at that time, and his waist and legs were spattered with blood, which was equivalent to being thrown away. That's why the door crack was formed. A small amount of white space.”

Wang Chuanxing carefully looked at the pictures on Jiang Yuan's phone and the location of the crack in the door, but found nothing.

This is the difficulty level of the third small question, which is the penultimate big question. It can be challenged at a level of 400 or 500 points, but it usually takes 600 points to solve it.

This case is somewhat special. The Changyang City Criminal Police Detachment probably has not assembled the most suitable investigation team. It is normal that the blood stain analysis was not done well.

Today's criminal police team has very few people who are good at bloodstain analysis.

What's more, the blood stains in this case were relatively small, and many on-site investigators probably did not consider this aspect.

Wan Baoming asked calmly: "If the murderer's position is indeed like this, it means that after the victim opened the door, the murderer took two steps in. This social distance is a bit close."

Jiang Yuan nodded slowly: "So, the murderer is probably an acquaintance. Moreover, considering that his clothes and shoes are stained with blood, it is very inconvenient to take public transportation. There is a high possibility that he lives nearby."

A gust of wind blew from behind, causing several people to get goosebumps.

Wang Chuanxing got excited and asked: "What about the sound of reading the meter? If it is a nearby resident, people who see him will not recognize him at a glance."

"The meters of other houses were not read, which means that the victim was probably the first one to be asked to open the door. Based on this calculation, the murderer probably only shouted a few times when he called to read the meters." Jiang Yuan paused and said: "I can't explain the witness testimony for now, but I think we should first follow the clues of blood stains and footprints to investigate."

Wan Baoming said at this time: "You can put aside the witness statements for now. These are all neighbors. Before the police arrived, they had been gathering at the scene for a long time. There were many cases of mutual influence or hints, not to mention the witnesses of this case. They are all elderly people, and the case happened during nap time..."

Wang Chuanxing was a little unconvinced and didn't know how to refute for a while.

Jiang Yuan said: "Don't worry about it for now, I suggest you do it.

Chapter 264: Full of flaws

Make a list of nearby residents, and then find out who is not at the scene after the police arrive, and we will visit them. "

Wan Baoming couldn't help but nod: "The murderer has to return to his residence, change and dispose of the bloody clothes, the murder weapon, and maybe take a shower, but he can't arrive at the scene in a short time. Essence\/Shuge first update"

"I saw the list of people who made the transcript yesterday. I'll look for it." Wang Zhong finally found something he could do and took out his notebook to start working on it.

Wang Chuanxing looked at the actions of several people, feeling uncomfortable, and asked in a low voice: "What... what if we interview the murderer?"

"Then let's arrest him." Wei Zhenguo nodded.

To be honest, six people are indeed a little too low to catch a murderer, but four strong young men in their twenties, plus two middle-aged men, trying to hold down an old man who is probably in his 60s does not seem that dangerous. .

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