Coroner Ke Xue

The second method proposed by Lin Xinyi is very simple.

He just wanted the more than 100 passengers on site to cooperate with his actions, leave the underground platform together, return to the ground, walk out of the tram station, and finally line up on the sidewalk.

That was all he asked of those passengers.

The passengers present did not understand this:

The murderer could not be found on this underground platform. How could he be found again when he ran to the ground and stood by the roadside?

Could it be that this murderer is an ice cream person who melts when exposed to the sun?

“It’s really baffling”

Everyone does not understand this method.

But since they all agreed to Lin Xinyi to cooperate with his investigation as much as possible, and Lin Xinyi may have promised to let him go if he could not find the murderer within 10 minutes, in the end, the passengers reluctantly agreed.

In this way, under the organization of the tram station staff, the more than 100 passengers formed a scattered queue and left the underground platform in a mighty manner and returned to the ground.

During the whole process, there was Miss Mao Lilan standing by to hold the battle.

She kept an eye on the passengers throughout the journey to prevent any of them from escaping during the journey.

then

Without any danger, all the more than 100 people moved to the ground.

Lin Xinyi organized them to walk out of the tram station and onto the sidewalk outside.

According to Lin Xinyi's request, the more than one hundred passengers were noisily divided into three crooked rows, keeping a distance from each other and standing parallel to each other on the sidewalk.

watching the scene

Those who didn’t know better thought they were here to do radio gymnastics.

"What on earth is this going to do?"

"It's so hot. Can we really find the murderer like this?"

Standing on the sidewalk, being basked in the sun, some passengers were already complaining.

Indeed, there are completely two worlds inside and outside the tram station.

The tram station is air-conditioned and the environment is cool and comfortable.

Outside the tram station, the sun hurt my face, the air was filled with scorching heat waves, and annoying flies and mosquitoes were buzzing in my ears.

After just standing there for half a minute, many people were already sweating profusely.

"Mr. Lin, how are you going to investigate?"

Someone asked in confusion.

"You can just stand." Lin Xinyi answered perfunctorily.

At the same time, like an instructor supervising the students' military training, he carefully patrolled back and forth in front of the three horizontal lines of these passengers from beginning to end and from end to end.

“I didn’t use any technical means, I just looked back and forth.”

"What is Mr. Lin Xinyi doing?"

Suzuki Sonoko murmured in confusion beside her.

"This" Kudo Shinichi hesitated but didn't see anything:

In his opinion, what Lin Xinyi is doing now is probably similar to that of a detective.

That is to say, through all the clues such as the other person's clothing, conversation, eyes, movements, walking posture, micro-expression changes, etc., plus imagination and logical reasoning, to infer the person's identity, background, occupation and experience.

Just like Sherlock Holmes can tell at the first glance that Watson is a military doctor who returned from Afghanistan, all famous detectives are good at this trick of "getting to know people when they meet."

But Kudo Shinichi knows very well that the trick of "getting to know people when you meet them" not only requires strong brainpower and keen observation, but also does not work every time.

For it to work, the person being observed needs to have so many clues for observation.

But now there are more than a hundred people here.

It is a fantasy to observe more than 100 passengers in just 10 minutes and find the murderer who deliberately hides himself.

"Could he really do it?"

"Or is it that what he was observing was not the passengers themselves, but something else?"

Kudo Shinichi vaguely guessed something.

At this moment, Lin Xinyi finally started to speak:

"You must all be wondering why I brought everyone outside this tram stop, right?"

He stopped and stood in front of these passengers, looking into each pair of doubtful eyes one by one:

"The reason is actually very simple:"

"Because there is something outside the tram stop that can help me find the murderer."

"And there are almost no such things in underground platforms."

"what?"

Everyone looked at each other and asked questions in confusion.

"Don't worry, let's talk about this"

"Let me tell you a little story first."

Unexpectedly, Lin Xinyi did not reveal the answer directly, but began to tell a story:

"In 1247 AD, which was the seventh year of Chunyou, Emperor Lizong of the Southern Song Dynasty in China, Song Ci, a forensic scientist who was then a prison officer in Hunan Tidian, compiled the forensic information collected throughout his life into a book and wrote the world's first systematic A monograph on sexual forensic science, "The Collection of Awakenings of Wrongdoing."

"The publication of "The Collection of Clearing Wrongs" means that forensic science in a systematic sense was born."

""Everyone present could not understand why:

Why do you still talk about history when investigating a case?

And it starts directly from the beginning of forensic science.

Why don't you start with the birth of the Lord God of Heaven?

Lin Xinyi ignored everyone's questioning looks and just continued to tell his story.

Moreover, the tone of his story was filled with reverence.

Just as Kudo Shinichi admires Arthur Conan Doyle, the "father of the world's mystery novels," as a forensic doctor, Lin Shinichi always has the highest respect for Song Ci, the world-recognized "father of forensic science."

And now, he will use the method taught by his ancestor to solve the case:

"In "The Collection of Cleansing Wrongs" written by Song Ci, there is a record of such a case:"

"One day, a corpse was found on the side of the road in a certain village. The clothes and belongings of the corpse were still there, and there were more than ten wounds all over the body with sickles."

"The local prosecutor responsible for investigating the case initially confirmed that the deceased died of a vendetta, so he asked the villagers in the same village to take out the sickles from their homes and put them in the sun to dry."

"Like now, it was mid-summer and there were a lot of flies flying around."

"But not long after, these flies lingering at the scene gathered inexplicably. They 'selected' one sickle from the seventy to eighty sickles on site, and gathered on this sickle to fly endlessly."

"So the prosecutor found the owner of the sickle and said to him:"

Lin Xinyi paused for a moment, then calmly recited the original text of "The Collection of Cleansing of Wrongs":

"'There are no flies in everyone's sickle. Now you are killing people, the smell of blood is still there, and the flies are gathering. How can you hide it?'"

"Those who look around on the right sigh in admiration, while those who kill people kowtow and admit their guilt."

He quickly finished telling the old story.

Everyone's expressions changed slightly, as if they had vaguely thought of something.

“This is the earliest case in which forensic entomology has been used to solve a crime.”

"The reason why flies can help prosecutors find the murderer is because flies' sensing systems are extremely sensitive - they can easily smell even trace amounts of blood that have been cleaned and invisible to the naked eye."

"And nutrient-rich blood happens to be the favorite food of flies. As long as they smell the smell of blood, these little guys can't help but gather where the blood exists."

Lin Xinyi slowly described the principle of flying flies looking for murder, and his eyes gradually became sharp:

"So, do you know why I want to take everyone out of the tram station?"

"Because the temperature in the tram station is low and there are fewer flies."

"And the temperature outside the tram station is high and there are many flies."

As he spoke, he paused and fixed his gaze firmly on a certain man in the crowd:

"This case is just like the story mentioned in "The Collection of Redress of Wrongs". The murderer kills someone, and when he kills someone, there will be blood on his hands."

"And flies love to hang out with villains with blood on their hands."

As soon as he finished speaking, following Lin Xinyi's eyes, everyone's eyes focused on the man.

The man had a gentle face, his body was clean, there was no trace of blood, and he had no so-called murderous intent.

No matter how you look at him, he is just a kind and ordinary person.

However, at this moment, around this "ordinary person"

All that lingered were flies that smelled the stench.

"Come out, Mr. Murderer."

Lin Xinyi looked at the man firmly:

"You've been defeated by a trick from eight hundred years ago."