civil forensic

Chapter 265
The next day.

Shunling Township.

Maybe it’s because of being in the outer suburbs of Changyang City, maybe because of the higher average income, maybe because of the better natural environment, driving through the slightly chaotic junction of towns and towns, the core area of ​​Shunling Township is actually a bit quiet and beautiful .

The slightly turbid Manshui 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 carry heavy-duty vehicles, dividing Shunling Township into two parts.

One part is the continuous quiet and beautiful town life, and the other part is the chaotic logistics park and industrial area of ​​fierce hustle and bustle.

Most of the young people are active in the factory area, and occasionally come to the old city to wander around, mainly men and women or men or women who are in love.

A little deeper into the texture of the township, that is, residential areas and living areas, 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.Today, the expansion of the new district is also a model of utilizing the new district.The time in the old city seems to be fixed.

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

Seeing Jiang Yuan looking at the outsiders, Wang Chuanxing, who was in the same car, explained sensitively: "Three years ago, there were not so many tourists. It can be said that there were basically no tourists, and the outsiders were all merchants, drivers, or factory workers. The current farmhouse was only built in the past two years, and they all went to the surrounding fishing gardens..."

"Is the victim involved in these things?" Wei Zhenguo asked: "For example, the demolition plan, renting out or selling the house, decorating the homestay and so on. Have you checked it?"

This is the question of economic factors.

According to Wei Zhenguo's understanding, the situation encountered by the deceased is very similar to the model of a gangster.However, to the extent 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've asked the people around me, but there are no such economic disputes. I haven't heard of them either. There are some robberies in the logistics park here, and they are small groups at most."

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

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

After yesterday's review and thinking, he already had some ideas, and he felt that he had almost understood the past work of Wang Chuanxing's task force.

The case that happened in the provincial capital has one advantage, that is, all levels of the case are of high quality.For example, photography, in Ningtai County, is a part-time surveyor, but in Changyang City, full-time criminal photography technicians, both in terms of the whole and details, are very good at shooting.

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

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

If the photos are taken well and the scene is complete, Jiang Yuan's confidence will be stronger.

He went to the scene to compare with the scene in the photo.

Wang Chuanxing and Wan Baoming have nothing to do, they are here to accompany them today.

……

When the car stopped at the entrance of the street, a group of people got into the alley and walked for about 10 minutes to the scene of the crime.

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

A big lock was hung in front of the door, and grass grew on the wall, but no one paid attention to it.

The houses of the previous neighbors were similar. Mu Zhiyang ran to find someone to ask, and they all moved out not long after the incident.

Few people find it strange.

It is not uncommon for neighbors next to the crime scene to be unwilling to continue living in the old house.In big cities, many people may have no choice, let alone the haunted house next door, in order to save hundreds of thousands of people living in haunted houses.

Houses in townships are not worth much, and buying a new one usually costs tens of thousands or 10,000+.Some people can even move to live with their children.

Wang Chuanxing directly used hydraulic pliers to cut off the lock and opened the door.

When the door opened, a few pieces of yellow paper floated out, blown high by the wind.

Mu Zhiyang couldn't help but put his arms around his shoulders.

creak.

The door of the old house wobbled.

The gray-black wooden door was a little chipped and deformed, but it no longer looked like blood.

"Has the scene been cleaned?" Wei Zhenguo looked back and forth.

Wang Chuanxing said "En", and said: "At that time, they were asked to keep the scene as much as possible, but it probably took too long."

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

Jiang Yuan took out his tablet computer, turned out the photos, and checked with the surrounding environment while looking at them.

After going around in a circle, Jiang Yuan went back to the door, found a photo with a dead body, looked around, and said, "I want to pose for a photo by myself."

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

Mu Zhiyang sighed: "I just washed the police pants last week."

While talking, Mu Zhiyang glanced at the position on the picture, and lay down quickly.

Jiang Yuan compared the photos again, and helped Mu Zhiyang straighten his posture.

Mu Zhiyang moved on the ground like a bug.

After the arrangement was finished, Jiang Yuan stood up and took a photo, and said, "Curl up a little bit, you are taller than the corpse."

Mu Zhiyang 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."

When Wei Zhenguo looked at the location Jiang Yuan was pointing at, he knew that it was the location where half of the bloody footprints were left that day, so he followed suit out of curiosity.

Wei Zhenguo was just over 1.7 meters tall, with a standard height. He bent down from the side and touched Mu Zhiyang's chin.

"How to say?" Wei Zhenguo got 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, but turned to Wan Baoming and said, "I don't think this case was committed randomly."

"It can be seen that you already have an idea, is there a problem with your footprints?" Wan Baoming had expected it.However, he committed crimes at random, which in itself was a problem of understanding, so he was just waiting to hear Jiang Yuan's description.

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

Jiang Yuan circled the position of Mu Zhiyang and Wei Zhenguo with his hand, and said: "It takes time for the pool of blood to form. If the murderer doesn't stab the victim's chest with a knife, he draws his knife and walks away. He won't step on the bleeding footprints." .This is the first point."

"Maybe it's just looking for property." Wang Chuanxing probably discussed similar topics in the task force.

"Is it the belongings that the old man who lives alone carries with him?" Wei Zhenguo refuted as soon as he heard it.

"Maybe it's a key, or a watch, a necklace, or an accessory like a pocket watch." Wang Chuanxing has an established answer here, and it's quite reasonable.

Jiang Yuan shook his head secretly.

Just as Jiang Yuan originally imagined, the bloodstain analysis and footprint identification level of Changyang Criminal Police Team is about [-]-[-]%. They have a certain ability to analyze and judge, but after all, they don't seem to be able to make big problems.

In today's era, LV5's bloodstain analysis + LV3's footprint identification is equivalent to a record of 800 points, a pure slinging level.

If Jiang Yuan was given a scene of the current case, he would have a high probability of solving the case in a short period of time, just like what the criminal investigators did decades ago.

Bloodstains + footprints were the standard configuration for criminal investigators in the technical department 40 years ago.

Now it is about current survey + map survey + fingerprint + DNA.Speaking of it, the current criminal investigators must have higher efficiency and combat effectiveness in solving cases, but they can't stand up to different cases and always have different adaptability.

In some cases, when there are enough clues, no matter which series of masters, 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 in front of me, another hope for a breakthrough should be forensic medicine.But Jiang Yuan has also read the forensic report, and there is no clue to provide.

At this time, Jiang Yuan swiped his hand like a student who just got 800 points on a question, and said:
"I have another idea about what the murderer stooped to do when he stepped into a pool of blood."

"I think he was testing the snort or the carotid artery to see if the victim was dead."

"Stepping into a pool of blood means that the murderer has been waiting at the scene for a while. I think he has waited for at least 1 minute. For a murderer, this time must be very valuable."

"It's not suitable 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 then takes the property, there is no need to wait. Even if the victim has a little resistance at this time, so what. The victim The man is a thin old man, after being stabbed, there is no need to wait for him to die, and he can be searched. If two people commit the crime, it will be easier."

Wang Chuanxing's eyes widened when he heard it. Although it wasn't such a surprising theory, Jiang Yuan's analysis to this extent was slightly beyond his expectations.

Jiang Yuan couldn't help but think of Liu Jinghui at this moment.He made the inference based on the bloodstain analysis, but he didn't know how Liu Jinghui would reason if he got a 400-point evidence report.

"Purpose speculation, let's stop here first. Let me talk about the footprints themselves." Jiang Yuan turned over his mobile phone and said: "I see that you have also found several footprint experts, and I will summarize the judgments given. From 40 Those between the ages of 65 and…”

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 tend to be older. 55 to 65 years old, I can even relax a little bit."

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

Jiang Yuan found a few photos in a hurry, then squatted in front of the door, and said: "Let's not talk about the other parts, from the photos taken, the most important point is that there is a blank space for the splash pattern here. ..."

Jiang Yuan made a circle around the crack of the door.Standing a little ahead, he said, "Based on the autopsy report of the forensic doctor, I believe that the murderer was standing in my position at that time, and the waist and legs were spattered with blood, which is equivalent to throwing one. That's why the door gap was formed." a small amount of whitespace at the

Wang Chuanxing carefully looked at the picture in Jiang Yuan's mobile phone, as well as the location of the door crack, but found nothing.

This is the difficulty of the third small question of the penultimate big question. It can be challenged at the level of four to five hundred points, but it usually takes 600 points to do it.

This case is still a bit special. It is estimated that the Changyang City Criminal Police Detachment did not gather the most suitable detection team. It is normal that the bloodstain analysis is not good.

In the current criminal police team, few people are good at bloodstain analysis.

What's more, the blood in this case is relatively small, and many on-site investigations probably didn't think about it.

Wan Baoming asked calmly: "The murderer's position is indeed the same, which means that after the victim opened the door, the murderer took two steps inside. This social distance is a bit close."

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

A gust of wind blew from behind, making goosebumps all over the people.

Wang Chuanxing was shocked and asked, "What about the sound of reading the meter? If it was a nearby resident, wouldn't anyone who saw him recognize him at a glance?"

"Other people's meters were not read, which means that the victim was probably the first to be called to open the door. In this way, the murderer should have called a few times to read the meter." Jiang Yuan paused and said: "I can't explain the witness's testimony for the time being, but I think we should first follow the clues of blood and footprints to investigate."

Wan Baoming said at this time: "The testimony of witnesses can be put aside for now. Here are all neighbors. Before the police arrived, they had gathered at the scene for a long time. There are many cases of mutual influence or mutual insinuation. What's more, 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 that much, I suggest to make a list of the nearby residents, and then find out the people who are not at the scene after the police arrive. Let's visit."

Wan Baoming couldn't help but nodded: "The murderer has to return to the residence, change and dispose of the bloody clothes, the murder weapon, and maybe take a bath, so he can't be on the scene in a short time."

"I had a list of people who saw the transcript yesterday. I'll look for it." Wang Zhong finally found something he could do, and directly took out his notebook to operate.

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

"Then catch it." Wei Zhenguo nodded.

To be honest, it is indeed a little less for six people to catch a murderer, but it seems that four strong guys in their twenties, plus two middle-aged people, hold down an old man who is probably in his 4s, and it seems that it is not so dangerous.

(End of this chapter)