civil forensic

Chapter 629 Evidence Search Stage (Seeking Monthly Pass)

Chapter 629 Evidence Search Stage (Seeking Monthly Pass)

"Since it's a current case, let's do it first." Jiang Yuan wasn't too picky.Theoretically speaking, the difficulty coefficient of the current case itself is low enough. As for whether the case is difficult or not, it has to be investigated in depth before it has the right to speak.

Since it is necessary to investigate in depth, it is better to solve it-Jiang Yuan has a very direct idea.He also didn't want to spend too much time on the case, as long as the case didn't have any pitfalls.

Huang Qiangmin followed on this trip, and Chai Tong was transferred away. Jiang Yuan felt that there should be no big problem in this regard.

Wang Chuanxing and others stepped forward, separated the case files, and spread them out on the long conference table, and everyone read them separately.

Jiang Yuan also sat down, took the forensic report again, took the photos, and read them one by one.

The level of forensic medicine in this case is quite good, suspected carbon monoxide poisoning, and immediately extracted blood.

According to the concentration of carboxyhemoglobin in heart blood, not only can it be determined that the deceased was poisoned by carbon monoxide, but also it can be judged that the onset of the disease is not chronic poisoning, but acute poisoning—if the concentration of carboxyhemoglobin is 50%, it may be carbon monoxide poisoning. former.

This is also in line with the situation at the scene.

The victim didn't even open the car door, nor did he take any self-rescue measures.It shows that the deceased lost consciousness or lost the ability to control his limbs at least for a short time.

This shows from another aspect that the victim's body is not under control.

At the same time, the expression of the deceased was natural, the clothes were intact, and the autopsy did not reveal any mechanical violence damage—this proves from another aspect that the victim was not under physical control at the time.

So the question is, why was the victim poisoned by a high concentration of carbon monoxide in a closed car without personal control?

As a forensic doctor, Jiang Yuan's first thought was drug control.

Although the forensic doctor in front did some toxicology tests, the tests were all commonly used drugs, and besides the commonly used drugs, there are many drugs that can cause people to faint.

Jiang Yuan wrote down the word "medicine" in his notebook.

Secondly, is it possible that an acquaintance committed the crime?

However, the victim died of acute poisoning. If the victim was in the same room with the murderer, unless he was wearing a gas mask or something, he would definitely die, let alone...

Having said that, Jiang Yuan still wrote down the words "Acquaintance committed the crime".

The reason why he wrote it down was because he suddenly thought that many people now wear masks every day.At least wearing a mask is not obtrusive.If the murderer wears a mask with activated carbon, or a more special absorbent mask, it is also possible to hold on for a while.

In the end, is it possible to kill people outside and move them into the car?

Jiang Yuan found photos of the victim in the car after he was moved out.In the position of the main driver's cab, feces and urine flowed freely, without discussing the issue of elegance. These filth were left by the victim on the eve of her death. In other words, at least her last moments were right in this main driver's seat.

Even if the murderer could move the corpse, he couldn't move the excrement and urine sideways.

As for transporting it at the last moment, it was the conclusion brought by the content of carboxyhemoglobin in the previous effort. The victim died of acute poisoning, and there was not so much time for the murderer to get stuck.

In summary……

Jiang Yuan put down the pen and paper, and said, "I'm going to investigate the car next. For others, I think we should check two directions first. One is the medicine side. I want to do it in a more detailed way. Please, Mr. Zhou." Contact the lab?"

"No problem." Old Zhou, the old criminal policeman, knew what Jiang Yuan was thinking when he turned his head.Although he doesn't quite agree with this idea, after all, if you have an unconventional medicine in your hand, you can just poison the victim to death, why bother with carbon monoxide, it's purely taking off your pants and farting, isn't it?

Therefore, although Lao Zhou considered this idea, he didn't bother the laboratory directly.

However, now that the 72-hour golden period has passed, to be precise, the golden period has passed, and it is normal for Jiang Yuan to expand his investigation ideas.

"The victim's network should have been checked, but there was no result?" Jiang Yuan asked Lao Zhou again at this time.

Lao Zhou shook his head and said: "There is no result so far. The victim's husband and wife are in a stable relationship. They have a child who has already gone to junior high school. The family is considered well-off and the conditions are good. They have a deposit of several 10 yuan and a three-bedroom, two-bedroom apartment in Beijing. The house in the living room, and two cars. Both parents are still alive, and they have lived...much better than me, at least."

"The others?"

"The victim is an employee of a state-owned enterprise, and the relationship between her colleagues is good or bad. She is just an ordinary office worker, and she has no too sharp conflicts with her colleagues around her. Regarding relatives and friends, we are also verifying one by one, and they are generally shocked. She There are also loans to two relatives, one is [-] and the other is [-]. Then there is the relationship between classmates and some customers, which may need to be checked carefully."

Jiang Yuan first expressed his approval and said, "It's amazing to be able to find so many in three days."

Lao Zhou smiled and said, "Then let's continue to search through the network?"

"Okay. Thank you for your hard work." Even if the people brought by Jiang Yuan are sent out to investigate, it is best to have local policemen around them to do things, otherwise they will not be familiar with all aspects.On the contrary, it is a clear arrest and the like, and sending people directly will not be too much affected.

"The parking place is not monitored, how is the surrounding area? Is there any conclusion."

"No. We deliberately checked several important people, including the victim's husband, son, and debtors, etc., but none of them appeared in the monitoring that day. I also asked about the owners of some cars around , and nothing useful."

"Okay. That's it for now."

For Jiang Yuan, the case is just the beginning, and no matter how many assumptions there are, they must be investigated before continuing.

Jiang Yuan arranged a few more instructions, and said directly to Wang Chuanxing: "Chuanxing, you will be responsible for the rest of the staff assignment later, I'm going to see the car."

"Yes." Wang Chuanxing agreed happily. He is actually a member of the Criminal Police Detachment of Changyang City. Now that he is back, although he is not a king, he is very excited.

Jiang Yuan took Mu Zhiyang to the criminal center to check the car.

Wan Baoming of the criminal center was an old acquaintance. Knowing that Jiang Yuan was coming, he had someone clean up the bathroom—the way the corpses were cleaned ensured the cleanliness of the bathroom!

Jiang Yuan didn't need to be polite, he dressed neatly and went to see the car.

Vehicle inspection room.

You can smell a strong smell as soon as you enter the door.

Jiang Yuan couldn't help looking at the two technicians in charge.I saw meaningful smiles on the faces of the two of them.

"The corpse was moved away, but there was no excrement or urine." Wan Baoming expressed the most practical impact at the moment with the simplest words.

Even as a forensic doctor, Jiang Yuan couldn't help frowning.

"Just wait until it's done." A technician kindly advised.

"I don't want to come here again." Jiang Yuan sighed heavily, stepped forward and opened the car door.

The strong smell of feces hits the face, smells bad, eats... poisonous.

"Fingerprints and DNA have been taken... Let's find a whiteboard." Jiang Yuan had a psychological expectation, and he stood up abruptly.

A technician ran quickly, brought a white plate over, and put it in front of Jiang Yuan.

Jiang Yuan hung a series of fingerprint photos extracted by the trace inspection on the whiteboard, then turned on the search light, leaned into the Mercedes-Benz C involved in the case, and checked fingerprints, DNA and other information.

Pure trace inspection can only be carried out in different areas during the investigation stage, and there is no such thing as teamwork.

And Jiang Yuan's crime scene investigation skills are now at level 5, so it's really a waste not to use them.

As for what will happen, Jiang Yuan himself doesn't know.

In any case, compared with the previous accumulated cases, this case gave Jiang Yuan a better feeling.

The pressure of the current case will not be small, but it is for the big bosses.Jiang Yuan only needs to solve the case himself.

Jiang Yuan is looking forward to doing a simple crime scene reconstruction through some... liquid, solid and other traces.

If one can deduce what happened at the crime scene, it may be possible to understand the source of the carbon monoxide that killed the victim.

(End of this chapter)