Chapter 554 Returning Home

“No cooing… no gurgling…”

The birds outside the window were singing in an orderly manner, and there seemed to be a sweet smell in the air. The green radish beside the bed seemed to have just woken up from a dream, and its leaves were green and seemed to be trembling slightly.

Jiang Yuan woke up naturally, rolled up the quilt, and didn't want to get up for a while.

Until the birds disappeared, Jiang Yuan got up lazily and went downstairs to have breakfast.

Breakfast was still fragrant beef soup.

The chef recognized Jiang Yuan and his attitude was even more kind, which made people feel even more regretful.

“This way.” Huang Qiangmin arrived earlier and waved when he saw Jiang Yuan.

“Director Huang.” Jiang Yuan sat down with the soup.

“I’ll go back first today.” Huang Qiangmin was in a good mood and smiled and said, “The team must be taken back. I always feel uneasy staying here. I will also go back to deal with the recent work.”

Huang Qiangmin specifically explained his itinerary to Jiang Yuan.

Jiang Yuan said "Have a good trip" and asked, "Then I will continue to investigate in Luojin next?"

"Okay, it depends on what you like. Anyway, now it's a case-by-case discussion. Just tell me in advance." Huang Qiangmin smiled.

The package has a discount, but it's not necessary at the moment.

Huang Qiangmin has seen many local police stations. After using Jiang Yuan's leadership, he will only remember it.

Quick and accurate case solving, a large amount of objective evidence, a complete chain of evidence, and a style that is not dragged out at all are all Jiang Yuan's advantages in criminal investigation.

[A novel app that has been running stably for many years, comparable to the old version of the book chasing artifact, the source change app used by old bookworms,]

In the current environment, only Jiang Yuan can choose people, so there is no need to worry about not being able to sell at a price.

"But... the case of the chef of Haidilao here has not yet been investigated. Are you going to open a new case?" Huang Qiangmin was still a little worried.

He was not worried that the case could not be solved, but that Jiang Yuan would be under increasing pressure during the investigation.

Yesterday's investigation was a big deal, but the results were small. The suspects brought back for questioning were basically cleared of suspicion, which put the investigation of the case into a period of self-doubt.

To be honest, the first day of investigation is the most promising. If there is no clue on the first day, the days to come will be even more difficult.

Jiang Yuan drank half a bowl of beef soup, and recalled the photos of the crime scene and the scene he saw later - the bloodstains had been cleaned up, and the shared rental house was full of people again, including the single room where the person died, and a young man with a strong blood moved in again - no matter from which angle, the probability of an acquaintance committing the crime is extremely high.

"There are no other clues and evidence at present, and insisting on the investigation should be the most reasonable solution." Jiang Yuan shook his head.

There should be no easy cases in the case of murder.

This truth is probably understood by everyone in the Luojin Municipal Bureau, but it is a truth, and the efforts in reality are really worth making.

Reflected to everyone's work and study, if you keep reading and studying every day, constantly pressuring, and constantly investing, and then tell you that you will eventually gain something, but every time you take an exam, your scores don't increase, and your rankings don't improve, how many people can stick to it?

The only one who is always in the air force and always loves fishing. Ordinary people still need feedback.

"You open a new case, Luojin City needs to do an investigation, and they don't have any manpower for you." Huang Qiangmin is mainly worried about this.

Jiang Yuan naturally thought about it, so he said: "For the initial investigation, it should not take many people. If you need manpower later, I want to transfer the people from the backlog special team."

Most of the staff of his backlog special team are seconded, and now they are scattered in several places to handle cases, that is, to finish the previous cases - solving a case is only the prelude to a case, and the files sorted out later are enough to annoy ordinary people. Later, from the inspection to the litigation stage, people are always indispensable to cooperate.

The most important thing is that many of Jiang Yuan's cases are aimed at the death penalty, and for such cases, the suspects basically have to go to the second trial, even if it is just to delay time, they will make this choice.

From the second trial to the approval of the death penalty, there are easy cases and annoying cases.

But no matter what, the main work of criminal police is always to solve cases, especially the police officers in Jiang Yuan's backlog case team.

Huang Qiangmin didn't care, nodded and said: "It's OK if you can use it. Tell me if there is any new situation in the case, and the same is true for Luojin City. Don't agree to their other conditions. There are a lot of cases in the ministries and commissions, so there is no need to stay in Luojin for too long. They are almost empty."

The resources of a police station are limited, and no station can solve murder cases all the time. Moreover, solving cases also requires the support of various departments. In the current environment, the criminal police team alone will definitely not be able to play.

Jiang Yuan is a technician, and in the final analysis, he consumes resources. Especially for evidence like trace evidence, it would be impossible to think about it in the previous Ningtai County Bureau. Even if it is taken to a provincial capital city like Changyang City or Luojin City, it is not very easy.

Jiang Yuan is now working on three major cases in Luojin City, and the Luojin City Bureau is also under pressure.

After drinking two bowls of beef soup, Jiang Yuan went downstairs to see Huang Qiangmin off to the car and watched a line of more than a dozen cars leave in a line.

This time, the leaders of the Luojin City Bureau did not see him off, just pretending that they did not know Huang Qiangmin was leaving.

Huang Qiangmin himself did not care about these. He would definitely return after escorting the materials back this time, which was equivalent to a temporary departure.

Jiang Yuan called Pang Jidong and took his car to the funeral home.

913 drowning case.

This is a murder case that Jiang Yuan chose for Pang Jidong.

Drowning can be said to be the most extensive and common application of forensic botany.

Because drowning is always accompanied by water accumulation in the lungs of the deceased. And in the accumulated water, there are not only plankton, but also algae.

Sometimes, even if you just simply touch the water, you will be contaminated with the algae components in it. There are even crime scenes with accumulated water, such as ponds and swimming pools, and there are all kinds of algae.

All of these can be used as evidence.

Solving cases through algae evidence has been used for many years in modern criminal investigation. It is an early application of forensic botany. Jiang Yuan feels that it is very suitable for Pang Jidong to do introductory education.

When several people arrived at the funeral home, the first thing they did was to check the lung samples left before.

The original forensic doctor had done a good job. He not only did gastric contents and lungs, but also took samples from the bone marrow.

This is a more professional behavior. Because if the deceased died of drowning, he or she would usually inhale or swallow some water violently, and natural water bodies must contain diatoms. Diatoms are smaller than ordinary algae and will enter various organs in the human body, including the bone marrow, with the blood.

In addition, if the victim is dead and the heart stops beating, diatoms will not be transported to various organs in the human body. Therefore, diatoms will not be found in the internal organs, or only a very small amount of diatoms will be found. The latter is due to the presence of diatomaceous earth, which leads to some toothpaste or metal polishing environments with diatoms.

In short, when a large amount of diatoms is found in the internal organs, the deceased died of drowning. Due to the high degree of closure of the bone marrow, the bone marrow has the strongest proof and eliminates the problem of diatomaceous earth.

In other words, if there is diatoms in the bone marrow, the person has drowned, which is the gold standard for drowning in forensics.

Not only that, the diatom community in the bone marrow is also consistent with the diatom community in the drowning waters. There are slightly fewer, but the main species are basically the same.

Yes, just like the pollen map, algae do not play alone. It is difficult for a single algae to prove anything. Algal communities or diatom communities have a higher level of proof.

"Not bad." Jiang Yuan looked at the algae evidence stored in the container and was extremely satisfied.

The label of the bottle recorded the case number, the name of the deceased, the date and place of sampling, and the numbered evidence and other information.

"General forensic doctors will not make such trouble." Jiang Yuan pointed to the extraction bottle of algae in the bone marrow.

"I am also very interested in forensic botany." Lu Jie, a forensic doctor in Luojin City, said quickly.

He was more attentive to Jiang Yuan because he knew a little bit.

"Is it difficult to take diatoms in the bone marrow?" Jiang Yuan asked with a smile.

"Well, it is dissolved with strong acid, which is quite dangerous." Lu Jie also smiled and nodded.

Seeing that everyone was laughing happily, Pang Jidong couldn't help but laugh too, saying, "From this point of view, will this case be easier to solve?"

"Of course not." Jiang Yuan continued to smile and said, "The previous evidence was very complete, which means that it is difficult to solve the case with the original evidence. And the evidence was very good, which means that it is not easy to find new evidence."