After talking to the team leader Lei Xin and smoking almost all of a pack of cigarettes, the forensic doctors dressed up again and continued to dissect the body.
Lei Xin originally wanted to help, but seeing that there was no room left, he stood on the edge, found a pair of pedals, stood on it, and continued to watch.
Cao Keyang now has company, together.
A body that has been set on fire is no better than a normal autopsy.
A normal autopsy, if only one part is done, can be dissected in two or three hours. A slightly more complicated one may take four or five hours.
However, very little information can be obtained from the burned corpses now, so a relatively careful dissection is required.
Lei Xin made a special trip here, and he actually had this intention in mind.
There is close to no physical evidence left at the scene, and there may really be nothing that can be used.
Although the body was burnt to a state of disgrace, there was still something left behind.
Lei Xin now hopes that the cause of suffocation is poisoning. If the type of poison can be determined, this will be a very good physical evidence clue.
Jiang Yuan once again took a back seat, but still searched hard.
Niudong, who is the forensic doctor of the district bureau, is even more serious. After examining the abdominal cavity and pelvic cavity, he carefully examined the limbs inch by inch.
Everyone knows in their hearts that all they can hope for now is some small discovery.
Jiang Yuan was tall, and he quickly bent over to the point of pain. When he stood up to move, he saw a bright ball of light slipping out of the corpse's chest.
Jiang Yuan looked around and reached out to take out the light ball.
Zhang Ying’s legacy—trendy clothing (LV2):
The eccentricity and ebb and flow of the big city gave Zhang Ying, who came from a small place, a severe impact. Those beautiful clothes, which can represent personality, culture, and art, tempted Zhang Ying again and again, and made her reluctant to leave.
.
Beautiful clothes also gave Zhang Ying unprecedented confidence. For a while, she also caught the tail of popular culture and had some audiences who knew how to appreciate and appreciate her.
Although Zhang Ying has gradually lost her sense of fashion when she returned to a small city, she is still one of the top fashionistas in Qinghe City.
LV2 is a city with high-level professional talents. Zhang Ying’s legacy seems to be at the higher level of LV2.
But, where can the skill of fashionable clothing be used?
Can we judge the identity and origin of a corpse based on its clothes?
After a second thought, Jiang Yuan looked at the corpse again.
The charred and curled corpses were naked and pitiful before being burned.
It was only at dawn that the autopsy was completely completed.
Niudong still had to write the autopsy report, so Wang Lan, Jiang Yuan, Cao Keyang and Lei Xin sat in the car and left first to rest.
To be precise, the first three people took a rest, while the team leader Lei Xin continued to go elsewhere to boost morale.
Noon the next day.
Jiang Yuan woke up and figured that all the reports should be released, so he packed up and headed to the criminal police team.
I put on brand new clothes all over my body.
He still has a shiny police look, and his uniform suit already looks good and upright.
Although he has new skills, Jiang Yuan doesn't seem to have changed much.
After entering the gate, Jiang Yuan felt a strong and heavy atmosphere.
Just like smoked old bacon, you will know what you are eating today when you smell it.
The expressions and movements of the surrounding police officers conveyed to Jiang Yuan the message that the case was not solved, the problems remained, and the clues were cut off.
Entering the office, the atmosphere was still there. Several police officers who looked like old bacon gathered together and discussed in low voices, probably not talking about trivial matters like garlic sprouts.
"Forensic Doctor Wang, Forensic Doctor Niu." Jiang Yuan came to the desk in the corner. This is a more flexible work station, which is for criminal police officers like Wang Lan who come from out of town to support him.
"Jiang Yuan." Wang Lan nodded. Her eyes were still sharp, but slightly tired.
For people in their forties, staying up late may become unbearable.
However, this is the case for all police officers, especially the criminal police officers in the criminal police team. Once they are involved in serious cases, stomach medicine and gastrointestinal medicine are essential medicines.
Jiang Yuan asked: "Have the results of the drug test come out? Is there anything?"
"There are no common poisons." Niudong responded.
Toxicology testing is done on a per-portion basis.
Generally speaking, if you check for arsenic, you should check for arsenic, and if you check for poison, you should check for poison. There is no machine that puts a piece of material in and spits out the result.
For something simpler, like testing cyanide, you can use picric acid test paper. The specific method... is almost the content of a high school chemistry experiment class.
As for solid phase extraction and liquid phase extraction, each has its own complexity.
Therefore, the lack of results in the poison test does not mean that the deceased was not poisoned, it just tested negative for common poisons.
In the more famous Fudan poisoning case, one had to undergo a separate test for dimethylnitrosamine and the result was positive before the type of poison could be determined. There are estimated to be 600,000 similar chemicals that are highly toxic to humans.
Jiang Yuan nodded slightly and said, "Then we still have to leave the interpersonal relationship?"
When there is almost no physical evidence, the only way to do it is to use the old methods of veteran detectives.
No wonder the several old criminal police officers were discussing with heavy expressions and excitement.
Wang Lan just said "En" and said: "The ideal situation is that things like the relationship between men and women lead to love killings. If this is the case, the difficulty lies in the interrogation. It depends on whether they can be recruited without physical evidence.
"
"That's right." Jiang Yuan and Niudong nodded in unison.
"If it's a burglary or a homicide that turns into a burglary, that's going to be a problem."
"really."
This is the most direct reasoning, it is not difficult, but the conclusion derived is a bit hard to accept.
Jiang Yuan couldn't help but ask: "Are there no cameras around? You can also do it a little further away, at the intersection."
"The urban village here is quite complicated. Even if there are cameras, they are all broken," said Forensic Wang.
Jiang Yuan understood clearly and had no intention of blaming another city for its security management problems. Problems like this in urban villages were already common, so he thought about going back and installing more cameras in Jiangcun.
Random committing crimes has always been a difficulty. The reason why theft and robbery is difficult to solve is that it is extremely random. Anyone can steal from anyone or rob anyone, so the ways to solve the crime are very limited.
The same goes for the Zhang Ying case. If you encounter a random crime, you have to focus on series and parallel connections.
If it cannot be connected in series and parallel to other cases, the evidence in this case alone will not only be insufficient to convict, but also insufficient to solve the case.
The air pressure in the office is relatively low for this reason.
When a case is completely out of control, the mood of the police officer responsible for the investigation will not get better.
Several old criminal policemen quickly finished talking and went out.
After a while, Lei Xin came into the big office.
After some greetings, Lei Xin came over to the corner where the three forensic doctors were standing, said hello, and updated the three of them on the latest situation, saying:
"The social relationship of the deceased Zhang Ying was quite complicated and she knew many people."
Forensic doctor Wang Lan asked: "Do you have a boyfriend?"
Lei Xin didn't sell it, and said: "Her hometown arranged for a fiancé and gave her a gift of 188,000 yuan. She also came to Qinghe City to work this year. I heard that they had some conflicts. Zhang Ying didn't like each other. The man went to the mall.
I have come to see Zhang Ying several times. This is the No. 1 suspect, and our people have already gone to look for him."
"Suspect No. 2 is Zhang Ying's leader. He has an ambiguous relationship, but he has a family. When he was brought back, he doesn't look like him."
"That's not the case, right... Is there anything else?"
Wang Lan stared at Lei Xin and asked.
"Zhang Ying has an outstanding appearance, knows how to dress up, and is a bit strong. She doesn't get along very well with her colleagues. She also had quarrels with customers, but they were not serious. She also had a dispute with the courier over the delivery of express delivery. She should be compensated.
several hundred."
Lei Xin was very worried. These were normal social interactions and nothing special.
He looked at Jiang Yuan, who was never absent. Lei Xin said in a good-tempered manner: "Forensic Doctor Jiang, can you go and see the scene if you have time?"
He just wanted to sift through as many clues as he could.
Jiang Yuan agreed immediately.
What he most wanted to do was complete the autopsy, but the case was not over yet, and those who should help still had to help.
Lei Xin quickly expressed his thanks and left in a hurry.
Jiang Yuan then called forensic doctor Wang Lan and a criminal police officer in particular, and they went to the crime scene together.
After truly experiencing the murderer returning to the crime scene, Jiang Yuan no longer dared to take it lightly.
Even with two technicians together, he felt it was not very safe.
When investigating a crime scene, technicians are focused on the ground or objects and do not notice people coming from behind.
With two technicians, the safety factor is not very high.
But it is much better to have a non-technical policeman. Even if he is using his mobile phone to watch short videos at the door, it is safer than having one more technician.
The self-built house after being burned down was dirty and dark.
The beams fell in the middle of the house, and the walls were in ruins, as if they had experienced war.
"The person who wants to kill the most right now is probably the landlord." The criminal policeman who came with him walked to the entrance of the yard and didn't want to go in.
The so-called house collapsed and the self-built house was burned down. Starting from the outer door, there is nowhere to start.
There were a few bored people at the door, looking around intently and refusing to leave even after being driven away.
It wasn't until the criminal police officer took out his notebook to write down their ID cards that they quickly left.
Jiang Yuan and Wang Lan put on masks, and especially foot gloves, and went inside to investigate a little bit.
Two hours later, Jiang Yuan basically gave up.
No fingerprints, bloodstains, or footprints could be found at the burnt site. It’s really not to blame for the lack of effort in the investigation.
Even trace amounts of physical evidence cannot be found in this environment.
Not only will biological test materials be denatured, common fibers and other materials will not be retained. Even metals may be oxidized.
"We can only look at the physical evidence collected from the fire site to see if we can find any clues." Jiang Yuan collected some physical evidence, but was not very confident.
As soon as I walked out of the door and was still taking off my gloves, the policeman at the door walked in quickly.
"Slow down, slow down, the ashes are rising." Wang Lan shouted quickly and asked: "Is there any new news?"
"There are clues from Zhang Ying's hometown." The policeman responded, and said a little excitedly: "It turns out that her family has arranged a marriage again, and the bride price is 288,000 yuan. Before she can withdraw from the house, we people
When I went there, the three families were having a fight."
