Chapter 173: The House Collapses

After talking to the captain Lei Xin for a while and finishing a pack of cigarettes, several forensic doctors dressed themselves up again and continued to dissect the body.

Lei Xin wanted to help, but when he saw there was no place, he stood by the side, found a footstool to stand on, and continued to look.

Cao Keyang was now with him.

The body that had been burned was not the same as the normal autopsy.

A normal autopsy, if only a part was done, could be dissected in two or three hours. A slightly more complicated one might take four or five hours.

However, there was too little information to be obtained from the burned body, so a relatively careful dissection was required.

Lei Xin came here specially, and this was actually his intention.

There was almost no physical evidence left at the scene, and there was probably really nothing that could be used.

Although the body was burned beyond recognition, there was still something left.

Lei Xin now hoped that the cause of suffocation was poisoning. If the type of poison could be determined, this would be a very good clue to physical evidence.

Jiang Yuan once again took a back seat, but he was still searching very hard.

Niu Dong, the forensic doctor of the district bureau, was even more serious. After examining the abdomen and pelvis, he carefully examined the limbs.

Everyone knew that the only hope now was to find some small discoveries.

Jiang Yuan was tall, and soon he felt pain when he bent over. When he stood up to move, he saw a bright ball of light sliding out of the chest of the corpse.

Jiang Yuan looked around and reached out to take the ball of light.

Zhang Ying's legacy - fashionable clothing (LV2):

The strangeness and tide of the big city gave Zhang Ying, who came from a small place, a severe shock. Those beautiful clothes, clothes that can represent personality, culture, and art, tempted Zhang Ying again and again, and made her linger.

Beautiful clothes also gave Zhang Ying unprecedented confidence. For a while, she caught the tail of popular culture and had some audiences who knew how to appreciate and admire her.

Although Zhang Ying, who returned to a small city, has gradually lost her fashion sense, she is still the top fashion trend in Qinghe City.

LV2 is a high-level professional talent in a city, and Zhang Ying's legacy seems to be at the higher level of LV2.

However, where can the skill of fashion clothing be used?

Can the identity and origin of the corpse be judged based on his clothes?

Changing his mind, Jiang Yuan looked at the corpse again.

The charred, curled corpse was naked before being burned, which was also a pity.

The autopsy was completed at dawn.

Niudong still had to write the autopsy report, so Wang Lan, Jiang Yuan, Cao Keyang and Lei Xin took a car and left first to rest.

To be precise, the first three rested, and the captain Lei Xin continued to go somewhere else to motivate morale.

The next day at noon.

Jiang Yuan woke up from a nap and estimated that all the reports should be out, so he packed up and went to the criminal police team.

He changed into brand new clothes.

He was still a shiny police cool uniform, and he looked very handsome and upright.

Although he had new skills, Jiang Yuan didn't want to change too much.

When he entered the door, Jiang Yuan felt a strong and heavy smell.

It was like smoked old bacon. You knew what you had eaten today when you smelled it.

The expressions and actions of the police officers around him conveyed to Jiang Yuan that the case was not solved, the difficulties remained, and the clues were cut off.

When he entered the office, the smell was still the same. Several police officers who looked like old bacon gathered together and discussed in a low voice. They were 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 was a relatively flexible workstation, which was for criminal police like Wang Lan who came from other places to support.

"Jiang Yuan." Wang Lan nodded. Her eyes were still sharp, but slightly tired.

People in their forties who stayed up late for consecutive nights probably couldn't stand it.

However, all police officers are like this, especially the criminal police in the criminal police team. Once they are involved in a serious case, stomach medicine and gastrointestinal medicine are essential medicines.

Jiang Yuan asked: "Have the results of the poison test come out? Is there anything?"

"No common poisons." Niu Dong responded.

Toxicological tests are done by portion.

Generally speaking, if you check arsenic, you check arsenic, and if you check rat poison, you check rat poison. There is no machine that puts a piece of material in and spits out the results.

For simpler ones, such as 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, liquid phase extraction and the like, they are also complicated in their own way.

Therefore, if there is no result in the poison test, it does not mean that the deceased is definitely not poisoned, but it is just negative for common poisons.

For the more famous Fudan poisoning case, you have to do a separate test for dimethylnitrosamine, and the result is positive before the type of poison can 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 rely on interpersonal relationships?"

When there is almost no physical evidence, the only way is to use the old methods of the old detectives.

No wonder several old detectives discussed with heavy and excited expressions.

Wang Lan only said "yeah" and said: "The ideal situation is that it is a love murder caused by things like relationships between men and women. If so, the difficulty lies in the interrogation. See if the person confesses without physical evidence."

"That's right." Jiang Yuan and Niu Dong nodded.

"If it is a murder converted from burglary or robbery, then it will be troublesome."

"Indeed."

This is the most direct reasoning, not difficult, but the conclusion is a bit hard to accept.

Jiang Yuan couldn't help asking: "Are there no cameras around? A little further away, at the intersection, it's also OK."

"The urban village here is quite complicated. Even if there are cameras, they are all broken." Forensic Doctor Wang said.

Jiang Yuan understood, and didn't want to blame the public security management problems of another city. This problem in the urban village is already common. He thought about going back and getting more cameras in Jiangcun.

Random crimes have always been a difficult point. Theft and robbery are difficult to crack because they are very random. If you can steal from anyone or rob anyone, the ways to solve the case are very limited.

The same is true for Zhang Ying's case. If you encounter a random crime, you have to focus on serial and parallel connection.

If you can't serialize and parallel to other cases, the evidence of this case alone is not enough to convict or solve the case.

The air pressure in the office is relatively low for this reason.

When a case is completely uncontrollable, the mood of the police responsible for solving the case is not good.

Several old criminal police quickly finished their conversation and went out.

After a while, Lei Xin came into the big office.

After a round of greetings, Lei Xin came to the corner of the three forensic doctors, said hello, and updated the three with the latest situation, saying:

"The deceased Zhang Ying's social relations are quite complicated, and she knows a lot of people."

Forensic doctor Wang Lan asked: "Does she have a boyfriend?"

Lei Xin did not keep it a secret, saying: "She found a fiancé in her hometown and gave him a gift of 188,000 yuan. He also came to Qinghe City to work this year. I heard that the two had some conflicts. Zhang Ying didn't like him. The man came to the mall to find Zhang Ying several times. This is suspect number one, and our people have already gone to find him."

"Suspect number two is Zhang Ying's leader. They have an ambiguous relationship, but he has a family. He was brought back, and he doesn't look like one."

"This relationship is not that serious... Are there any others?"

Wang Lan stared at Lei Xin and asked.

"Zhang Ying is good-looking, knows how to dress up, is a bit strong, doesn't get along well with colleagues, and has quarreled with customers, but not seriously. She also had a dispute with the courier over a courier, and the courier paid her several hundred yuan."

Lei Xin was in a state of panic. These were all normal social interactions, and nothing special.

He looked at Jiang Yuan, who never went empty-handed. Lei Xin said in a good-tempered manner: "Can forensic doctor Jiang go to the scene when he is free?"

He was thinking of screening out as many clues as possible.

Jiang Yuan agreed immediately.

The autopsy he wanted to do the most was done, but the case was not over, and those who should help still had to help.

Lei Xin hurriedly expressed his gratitude, and then hurried away.

Jiang Yuan then called forensic doctor Wang Lan and a criminal policeman to go to the crime scene together.

After experiencing the murderer's return to the crime scene, Jiang Yuan no longer dared to take it lightly.

Even with two technicians, he felt that it was not very safe.

During the crime scene investigation, the technicians were concentrating on the ground or objects, and they didn't notice the people coming behind them.

Two technicians were not very safe.

But it was much better to have a non-technical policeman. Even if he was watching short videos with his mobile phone at the door, it was safer than having an extra technician.

The self-built house after the burnt down was dirty and black.

The beams fell in the middle of the house, and the broken walls looked like they had been through war.

"The one who wants to kill the most now is probably the landlord." The criminal police who came with him didn't want to go in when they reached the entrance of the yard.

The so-called house collapsed, and the self-built house after the burnt down had no place to step from the outer door.

There were a few bored people at the door, looking around, and they didn't leave even after being driven away.

It wasn't until the criminal police took out a notebook to record their ID cards that they hurriedly left.

Jiang Yuan and Wang Lan put on masks and foot covers, and then went in to investigate a little bit.

Two hours later, Jiang Yuan basically gave up.

No fingerprints, blood or footprints were found at the scene after the burning. It's really not the fault of the on-site investigation for not working hard.

Even trace evidence cannot be found in this environment.

Not only will biological samples be denatured, but common fibers and other materials cannot be retained. Even metals may be oxidized.

"We can only see if we can find clues by looking at the evidence taken from the fire point." Jiang Yuan took some evidence, but he was not very confident.

Just as he walked out of the door and was still taking off his gloves, the police at the door walked in quickly.

"Slow down, slow down, the dust is rising." Wang Lan shouted quickly, and asked again: "Is there any new information?"

"There are clues in Zhang Ying's hometown." The police responded, and said excitedly: "It turns out that her family has arranged another marriage, and the betrothal gift is 288,000 yuan. Before returning it to the previous family, when we went there, the three families were arguing."