Coroner Coroner

"Let me tell you..."

Officer Jianggu sighed helplessly:

"It's really not suitable for children to watch."

"Well... I don't want to read it."

Hui Yuanai finally nodded obediently, and then...

She turned around in Lin Xinyi's arms, turned around and sat on his lap, and buried her small face in his chest.

People still did not leave.

The eyes were not looking.

But the small ears are still standing up alertly.

"I want to hear brother Lin Xinyi solve the case."

Hui Yuanai, lying in Lin Xinyi's arms, expressed his heart very frankly.

Officer Jianggu: "..."

Do you want to hear your brother solve the case?

You are thinking about your brother!

Police officer Jianggu realized more and more that the little girl's perversion problem was a bit serious.

"Okay..." He tried to focus back on the case itself:

"Mr. Lin, here are the relevant information on this case."

As he said that, Police Officer Jiang Gu looked down at the photo. The soft tissue of the face had almost completely disappeared, and there was no way to distinguish its appearance and identity from the nameless corpse.

This tragic image of flesh and blood being eaten away by maggots after death caused a trace of imperceptible complexity to flash in his eyes.

But he still suppressed his emotions well.

He asked Lin Xinyi in a serious voice:

"We need to know..."

"Is this person Hirota Masami?"

Jianggu police officers put forward their request for public security.

But this time, Lin Xinyi, who was always able to help solve problems easily in the past, shook his head without even reading the documents carefully:

"I can't guarantee that."

"In the case of late-stage corruption, soft tissue disappearance, and high degree of ossification of the corpse, the role that our forensic doctors can play is actually quite limited."

"If you just start from the corpse, I can at most help determine the age, time of death and so on."

"The rest is up to you police officers."

Determining the source of the corpse has always been the most troublesome part of the unknown corpse case.

There is very little that a corpse can do by itself.

What the forensic doctor can do besides confirming the age, gender, race, and time of death of the deceased is to analyze the clothing and belongings of the deceased, describe the identity and occupation of the deceased, and narrow down the scope of the search for the source of the corpse.

The former only tests skills, while the latter depends on luck.

If the deceased was wearing ordinary clothes and didn't have any limited-edition bags or sneakers, it would be difficult to investigate.

And if only the age, gender, race, and approximate time of death of the deceased are known, and there are no other clues...

Then it can only be compared with the missing persons reported by the police in various places during that time period, and let the family members of the missing persons who meet the characteristics do DNA comparison one by one to see if they can just hit.

Still hit and miss actually.

So Lin Xin glanced at the corpse in the photo, and immediately reminded him in advance:

With my limited ability, I really might not be able to solve this kind of headless murder case that will be the top difficulty in the future.

"I know."

Police officer Jianggu was not disappointed by Lin Xinyi's defeatist remarks:

"Actually, if you can help determine the time of death of this corpse, you can already help a lot."

"The coroner we have called..."

"None of them have the ability."

Before Lin Xinyi appeared, it can be said that there were almost no real forensics in this world.

Forensic doctors are all out to play tricks. They can provide detectives with some insignificant clues, help with drug testing, check fingerprints and DNA, etc., which is already a lot of drama.

Therefore, even the forensic doctors of a powerful department like the Japanese public security have very limited capabilities.

They are all accustomed to being led away by famous detectives, or police officers like Jiang Gu, who are comparable to famous detectives, and gradually they are used to being the background board, unable to stand on their own.

And judging the death time of late-stage decayed corpses is another difficult point.

This question is really difficult for those parallel import coroners.

So I had no choice but to ask Lin Xinyi.

"but…"

Lin Xinyi carefully looked at the photo of the corpse, but shook his head helplessly:

"Honestly, as far as this case is concerned..."

"Just judging the approximate time of death, it is difficult for me to guarantee accuracy."

"This...why?"

Officer Jianggu asked with some puzzlement:

"Mr. Lin, don't you know how to use forensic entomology to judge the time of death?"

"I heard that the almost completely charred corpse found in Gunma County last time was your..."

"Different."

Lin Xinyi knew that police officer Jianggu was talking about the "Fire Festival Murder Case in Chigui Village".

The bodies in that case had been burned to such an extent that it was impossible to rely on conventional methods to determine the time of death.

It was Lin Xinyi who successfully judged the death time of the deceased through an autopsy and found fly maggot larvae that survived the fire from the Chrysanthemum area, which had a thick soft tissue layer and strong high temperature resistance.

Officer Jianggu knew that he had done this before.

And in this case, there happened to be so many "cute" corpses on the body.

Couldn't they repeat the same trick and use these maggots to accurately judge the time of death?

"It's really not that simple this time."

"The corpse in the last case was only early decay, and the maggots in the corpse only developed to the larval stage."

"As for the fly maggots in the larval stage, the length will increase by 0.10.2mm every day."

"Using this principle, we can directly use the growth length of fly maggot larvae to judge the death time of the deceased on the early decayed corpse."

"But this corpse has reached the advanced stage of corruption."

"There were not only larvae on the body, but pupae were also found at the scene."

"This shows that the flies have reproduced on the corpse for at least one generation, and there is no way to simply judge the growth of the larvae."

Larval life is also limited.

It cannot reason over time and grow infinitely longer.

The eggs turn into larvae maggots, which mature into pupae, which emerge into adult flies.

The stage of early larval growth can be judged simply from the length of maggots.

But the larvae pupate and the pupae emerge into adults. The time spent in these stages is not so easy to judge.

Therefore, the growth and development of fly larvae on late-stage decaying corpses are basically unable to provide a reference.

"After a long time, the bugs don't know how many generations they have reproduced on the corpse."

"How can simply measuring the length of a larva on a corpse, possibly a 'grandchild' that hatched many days after the person died, help us understand when the person died?"

"So, in this case..."

"We can often only use the 'successional rules of necrophagic insect communities' to judge the time of death."

Using the law of succession of necrophagic insect communities, in the final analysis, is to study the law of biological community data such as the population number, type, and proportion of different populations of various insects on corpses over time, and then infer the time of death.

From this point of view, it is much more complicated than the operation of "measuring the length of maggots with a ruler".

certainly…

Although the situation is complicated, Lin Xinyi is not incapable.

But the most critical key question is...

"The succession law of insect communities is very affected by various factors such as geographical differences, seasonal differences, and climate changes."

"Especially this geographical difference, the most difficult to solve..."

Oranges born in Huainan are oranges, and oranges born in Huaibei are oranges.

The time required for the same insect to grow and develop in different regions can be said to vary greatly.

Lin Xinyi's experience in insect community analysis accumulated in his previous life may have been out of the province or even the city, so he can't use it directly.

Let alone a different country, or even a different world.

Previous experience cannot be copied at all.

It's the same as having no experience.

If he wanted to use this trick to judge the time of death, he had to first find out the succession rules of the carrion insect community in the Tokyo metropolitan area through lengthy experimental research.

Forensic scientists have opened the way, and later forensic doctors can use this law to analyze specific cases.

"But forensic science research in the Tokyo area, especially forensic entomology research..."

"Eh...the future is promising."