Coroner Coroner

"The main purpose of our autopsy is to determine the real time of death of Mr. Negishi and to overthrow the alibi of Yutaka Abe."

"If the roasting is not too severe, the time of death can be easily judged by directly looking at the internal organs for corruption and discoloration, or extracting the spoilage bacteria in the organ tissues for research."

"but now…"

Looking at those organs that were severely discolored and deformed due to high-temperature roasting, Lin Xinyi sighed helplessly:

"It's a bit difficult to judge the time of death."

Chapter 114 Methods of Determining the Time of Death

"Indeed... In this way, it is impossible to see how long Mr. Negishi has been dead."

Although he is completely an amateur player, Mao Lilan can also understand Lin Xinyi's words through the way of thinking of ordinary people:

like pork...

If a piece of meat is left for a long time, it will definitely stink and change color, which can be seen at a glance.

But if there is an unscrupulous businessman who cooks the bad meat at high temperature, diners may not be able to tell how long the meat has been kept.

"Then what should we do now?"

Mao Lilan asked curiously.

Now she is like Nobita meeting Doraemon, and whenever she has a problem, she will go to Lin Xinyi.

And Lin Xinyi is really like the omnipotent Doraemon, who can answer her questions every time and let her learn knowledge.

This time, Mao Lilan was also looking forward to getting an answer from Lin Xinyi.

But Lin Xinyi did not answer confidently like before.

"This question...I haven't thought of it yet."

He gave a helpless answer, and at the same time fell into deep thinking.

Determining the time of death of the deceased in the case of posthumous cremation is a difficult problem.

Conventional judgment methods such as plaque, rigor, and body temperature are all ineffective due to the carbonization of soft tissues, and high temperature will destroy the signs of corruption inside the corpse and kill the putrefactive bacteria in organs and tissues.

In the actual case detection, want to judge the death time of the posthumous cremation case...

Generally, they first find a way to confirm the identity of the deceased, and then visit the family and friends of the deceased to confirm the time of the last meal the deceased had before disappearing.

Then, based on the degree of digestion of food in the stomach, or from the perspective of gastrointestinal dynamics, through the measurement of the migration distance of the deceased’s gastrointestinal contents, and substituted into the formula for calculation, it is inferred that the deceased may still be alive after eating his last meal. how long.

Combined with the specific time of the last meal confirmed through the interview and investigation, the approximate death time of the deceased can be conversely inferred.

But now, this case is very special.

"The bastard Toyo Abe, there is a high probability that he hired someone to pretend to be the dead, and then hired Uncle Mori to follow the fake, creating the illusion that Mr. Negishi was still alive on Wednesday night."

"In this way, we have no way of knowing the day and time when the deceased disappeared."

"It is difficult to determine the time of the deceased's last meal through investigation."

Thinking of this, Lin Xinyi felt a little headache:

After death, the body was burned, destroying the traces.

The murderer's trick hindered the investigation again.

He also didn't expect that the combination of the anti-reconnaissance method of destroying the corpse and the murder trick of forging the alibi would cause so much trouble.

Think about it carefully, if the autopsy cannot confirm the time of death of the deceased...

If you want to expose Abe's lies, you can only rely on a search to catch the "actor" who was invited by Abe to play the deceased.

But Abe is so thoughtful, how could such a big loophole not be let go.

Since he dared to invite someone to pretend to be the deceased, he must have made sure that it would be difficult for the police to find that person.

Not to mention, ever since I met Megure, the head of the first investigation section, and Mori Kogoro, the former detective of the first investigation section...

Lin Xinyi had already given up hope for the search ability of the first search section.

It is indeed too difficult for them to find someone from the huge Tokyo without any clues.

"Mr. Lin Xinyi?"

Seeing that Lin Xinyi hadn't spoken for a long time, Mao Lilan called out tentatively.

"Hmm..." Lin Xin came back to his senses and said:

"Forget it, let's ignore the time of death and continue with the autopsy."

"Get ready to take pictures and record, we still have a lot to do."

The thoracic and abdominal cavity was opened. According to the procedure, the next step is to observe whether there are any abnormalities such as swelling, lesions, rupture and bleeding in various organs.

But the internal organs of this corpse were almost all shrunk and deformed by the high temperature, and a large amount of body fluids evaporated, and many things could not be seen.

Lin Xinyi had no choice but to follow the procedure to do all possible examinations, and then remove organs for further examination.

Forensic dissection does not require all organs to be taken out, but according to the procedure, major organs such as the brain, heart, lungs, liver, spleen, and kidneys must be taken out, photographed, weighed, and checked for pathological changes.

After the examination, a part of the organ will be fixed and used as a sample, and a small amount of heart blood will be taken for testing.

The stomach and intestines are generally not taken out, but the stomach will be cut open to check the contents, and the contents will be collected, weighed, and preserved.

"Look... no charcoal was found in the stomach of the deceased."

"This is one of the reliable evidences of posthumous cremation."

"If you were burned to death while you were alive, and you opened your mouth to breathe the air of the fire scene before you died, charcoal dust would appear in your stomach."

Lin Xinyi carefully collected the strange-smelling stomach contents in the deceased's stomach with a spoon, and at the same time did not forget to teach Mao Lilan a lesson.

Mr. Negishi was forced to open his business after his death, and by the way, he became a general teacher for a good student of Lin Xinyi:

"When we do the neck autopsy, we should also find that there is no soot in his trachea, and there is no thermal burn from breathing in his lifetime."

"These are ways to distinguish between being burned before death and burning after death."

"En." Mao Lilan nodded seriously, and wrote down what Lin Xinyi taught.

After a period of adaptation, she has gradually withstood the huge impact of observing the anatomy.

Even Mao Lilan dared to get close to observe the internal organs that Lin Xinyi took out from the chest and abdomen.

"This is the heart of the dead."

"His left ventricle has a stab wound through the entire thickness of the ventricle, and there is still a large amount of blood in the chest cavity that has not been dried by high temperature, which proves my speculation—"

"The deceased was indeed stabbed in the heart by the murderer from behind, resulting in massive bleeding and death in a short period of time."

Lin Xinyi held the heart that had just been pulled out of his chest, and showed it to Mao Lilan.

Mao Lilan's complexion did not change much.

Just like the people on the earth in 2020, after watching too many exciting news, they gradually get used to it.

In this way, she silently helped Lin Xinyi take pictures of various organs, and at the same time kept asking questions during the dissection process, learning all kinds of novel knowledge.

Time passed unconsciously in such a strong learning atmosphere, and this judicial dissection seemed to have really become a teaching dissection.

Lin Xinyi and Mao Lilan have been busy for a long time, and finally finished the systematic anatomy of the thoracic cavity, abdominal cavity, and cranial cavity according to the procedure.

And after this whole set of anatomy procedures...

After they finished the anatomy teaching task by the way, they had to face the initial problem again:

"How to judge the death time of the deceased?"

"Mr. Lin Xinyi, is there really no other way?"

Mao Lilan herself was completely at a loss, so she could only ask Lin Xinyi's thoughts again.

"This..." Lin Xinyi was also confused:

The dissection has reached the final step, and then only sutures are needed.

If the method of judging the time of death has not been thought of at this time, then the biggest purpose of this autopsy is undoubtedly not successfully achieved.

"Let me think again..."

Lin Xin held his breath and concentrated, thinking carefully.

At this time, as a combination of criminal police and doctors, compared with doctors who simply do anatomy, the advantages of forensic medicine are reflected.

Since the answer cannot be obtained purely from the anatomy, it is necessary to turn on the "criminal police mode" to reason from the facts of the case, which in turn helps determine the direction of the anatomical investigation.

"The suspect, Takashi Abe, left Tokyo by plane on Wednesday morning. This has been confirmed."

"So, suppose Mr. Negishi was really killed by him."

"Then his committing time was only on Tuesday night before Wednesday morning, or earlier."

"The body of Mr. Negishi was found in a burning bonfire on Thursday evening."

"This means that the death time of the deceased is at least two days."

"So…"

Lin Xinyi recalled what he had learned:

"With the recent summer-like temperature, what corpse signs will appear in corpses that have been dead for more than two days?"

"Corpse smell, corruption, green corpse? These have been burnt to the point of being invisible."

"So, what traces are there that can be preserved under high-temperature roasting?"

"Hmm... wait, if it's that place..."

"The meat layer in that place is relatively thick, so it should be able to keep the physical evidence from being burned!"

As if a program that had been calculated for a long time finally ran out of results, Lin Xinyi suddenly thought of something.

"Miss Maury."

Lin Xinyi turned his head and said to Mao Lilan:

"I suggest you go and put on your gas mask."