Chapter 114: Methods for Determining the Time of Death

"Indeed... It is impossible to tell how long Mr. Negishi has been dead. ”

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

It's like pork...

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

But if there is a black-hearted merchant who processes the bad meat at high temperature, the diners may not be able to tell how long the meat has been left.

"So what now?"

Mao Lilan asked curiously.

She is now like Nobita meeting Doraemon, and whenever she has a problem, she will go to Lin Shinichi.

And Lin Xinyi is really like an 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 Xin.

But Lin Xinyi did not answer as confidently as before.

"The question... I didn't think of it yet. ”

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

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

Conventional methods of judging corpse spots, corpse stiffness, and corpse temperature all lose their effectiveness due to the charring of soft tissues, and the high temperature will destroy the signs of decay inside the corpse and kill the decaying flora of organs and tissues.

In the real-life case detection, if you want to determine the time of death in the posthumous cremation case...

Generally, the identity of the deceased is confirmed first, and then the family and friends of the deceased are interviewed to confirm the time of the last meal that the deceased ate before his disappearance.

Then, through the degree of digestion of the food in the stomach and intestines, or from the perspective of gastrointestinal dynamics, through the measurement of the migration distance of the deceased's gastrointestinal contents, the formula is substituted to calculate, and it is estimated how long the deceased survived after eating the last meal before death.

Combined with the specific time of the last meal confirmed through the interview, it is possible to guess the approximate time of death of the deceased.

But now, this case is very special.

"Toyoshi Abe, that bastard, most likely asked someone to pretend to be the deceased, and then hired Uncle Maori to follow the fake, creating the illusion that Mr. Negishi was alive on Wednesday night."

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

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

Thinking of this, Lin Xinyi had a headache:

After death, the body was cremated, and the traces were destroyed.

The murderer's tricks hindered the investigation.

He also did not expect that the combination of the anti-reconnaissance means of destroying the corpses and destroying the traces, coupled with this murderous trick of forging alibi, would cause such a big and such trouble.

If you think about it, if the autopsy can't confirm the time of death of the deceased...

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

But Abe Yutaka is so thoughtful, how can such a big loophole be possible.

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

Not to mention, since I got to know the current head of the first section of the search department of the twilight police department, and the former criminal police officer of the first section of the search section of Kogoro Maori...

Lin Xinyi already had little hope for the search ability of the search lesson.

It's really hard for them to find someone from the huge Tokyo Metropolitan without any clues.

"Mr. Lin Xinyi?"

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

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

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

"We're ready to take pictures, we still have a lot to do."

The chest and abdominal cavity are opened, and according to the process, the next step is to observe whether there are abnormalities such as swelling, lesions, rupture and bleeding in each organ.

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

Lin Xinyi had no choice but to follow the process to do all the tests that could be done, and then harvest organs for further examination.

Forensic autopsy does not require the removal of all organs, but according to the procedure, the main organs such as the brain, heart, lungs, liver, spleen, and kidneys are to be taken out, photographed, weighed, and checked for pathological changes.

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

The stomach and intestines are generally not removed, but the stomach is cut open to examine the contents, and the contents are collected, weighed, and retained.

"Look... No charcoal was found in the stomach of the deceased. ”

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

"If you are burned to death before you die, and you open your mouth to breathe the air of the fire before you die, charcoal will appear in your stomach."

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

After Mr. Negishi's death, he was forced to open a business, and by the way, he became a general teacher for Lin Shinichi's good students:

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

"These are all ways to distinguish between burning a dead body before death and cremating a body after death."

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

After a period of adaptation, she has gradually withstood the tremendous impact of observing the dissection.

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

"This is the heart of the dead."

"He had a stab wound to his left ventricle that ran through the entire thickness of the ventricle, and there was a large amount of blood in his chest cavity that had not been dried by the heat, which confirmed my suspicionβ€”"

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

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

Maolilan's face didn't change much.

Just like the people of the earth in 2020, they have watched too much exciting big news, and they have gradually become accustomed to it.

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

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

Lin Xinyi and Mao Lilan were busy for a long time, and finally completed the systematic dissection of the thoracic cavity, abdominal cavity, and cranial cavity according to the process.

And after this full set of dissecting procedures...

After they completed the anatomy teaching task, they had to face the initial problem:

"How should the time of death of the deceased be judged?"

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

Mao Lilan himself was completely confused, so he could only ask Lin Xinyi's thoughts again.

"This..."Lin Xinyi was also very entangled:

The last step of the dissection has been done, and the next step is only the sutures.

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

"Let me think again..."

Lin Xin held his breath and pondered carefully.

At this time, as a combination of criminal police and doctors, compared with doctors who simply do dissection, 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, and in turn help determine the direction of the autopsy investigation.

"The suspect, Yutaka Abe, left Tokyo by plane on Wednesday morning, and this has been confirmed."

"So, let's say Mr. Negishi was really killed by him."

"Then he only committed the crime on Tuesday night before Wednesday morning, or earlier."

"Mr. Negishi's body was found in a burning campfire on Thursday evening."

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

"So..."

Lin Xinyi recalled what he had learned:

"With the recent summer-like temperatures, what are the signs of corpses that have been dead for more than two days?"

"Corpse stench, rotten, corpse green? These are already burned to the point that they can't be seen. ”

"So, what traces can be preserved in the heat of the roast, and there is hope to be preserved?"

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

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

Just like a program that has been operating for a long time finally ran out of results, Lin Xinyi suddenly thought of something.

"Miss Maori."

Lin Xinyi turned his head and said to Mao Lilan:

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

"I'm afraid the next smell is bigger, just wearing a mask, you novice probably can't accept it."

"Huh?" Mao Lilan was slightly stunned:

Just by the smell, she already thought it was disgusting and disgusting to open the door - disgusting to the house.

Could there be a more disgusting smell?

"Mr. Lin Xinyi, you... Where is this to be checked? ”

"Anal, anal."

Not paying attention to Mao Lilan's slightly strange gaze, Lin Xinyi was very engaged and said with a little excitement:

"For a body that has been dead for more than two days, there may be very important evidence there."

Maoriran: "......"

She didn't expect that she had finally survived until now, and her spiritual endurance still hadn't passed.

With a kind of ambivalence of resistance and curiosity, Mao Lilan couldn't help but ask:

"That kind of place... What can be found? ”

"Maggots."

Lin Xinyi replied with a smile.