Coroner Coroner

"It's getting late, everyone, go back to your room and rest!"

"I asked the housekeeper to prepare guest rooms for everyone. Miss Maori, just ask any servant, and they will take you back to the room."

"Okay." Maurilan nodded.

She bid farewell to Hattori mother and son, and after leaving the "chess room", she didn't rush to find her own room, but went to the bathroom first.

After a while, when I walked out of the bathroom...

Suddenly, Mao Lilan heard an extremely slight crisp sound—it sounded far away, as if it was the sound of glass breaking.

"What was broken?"

She was curious, but she didn't want to investigate.

But after a while, when she wandered around the house trying to find a servant to ask directions, she found that everyone was heading in the same direction.

Mao Lilan had no choice but to follow the past to have a look.

When she came to the scene, she happened to bump into Yuan Shanhe Ye who rushed over.

"And Miss Ye, I want to talk to you."

Mao Lilan wanted to take the opportunity to have a good chat with the other party to resolve the conflict between the two.

"Hmm..." Yuan Shan and Ye answered absently.

Then she quickly turned her head away, ignored Mao Lilan, and followed into the room where everyone gathered.

It was a private collection room full of pottery, vases and bonsai.

And on a booth occupying position C in the middle of the collection room, where the vase should have been placed, there was only a pile of scattered fragments left.

"My white porcelain arabesque vase!!"

Hattori Heizo shouted angrily, even the mustache at the corner of his mouth trembled with anger.

"Oops…"

"That's Dad's favorite white porcelain arabesque vase!"

Hattori Heiji stood beside Hayashi Shinichi, and said with a strange expression:

"In his eyes, this thing is closer than my son!"

"So exaggerated?"

Lin Xinyi looked at the pile of debris curiously.

He looked at it for a while, but he didn't see any difference between these inconspicuous little porcelain plates and the plates he used for dinner at night.

"Who did this?!"

Hattori Heizo looked around the scene furiously, scaring the few servants present so that they didn't dare to look up.

Until I saw Lin Xinyi, and Mao Lilan who just rushed to the scene...

He suddenly realized his gaffe:

"Ahem...Sorry, I'm getting a little excited."

Hattori Heizo quickly returned to his usual calm and dignified head of the prefectural police headquarters.

However, there is always a distressed taste in his eyes:

"It's definitely my favorite collection...too bad."

"But, alas..."

"Whoever broke it, admit it yourself. As long as you have the courage to admit your mistakes, I won't do anything to you."

In the end, Hattori Heizo still showed the measure of a big man.

But under his second look around, no one present was willing to admit it.

"..."

Hattori Heizo frowned slightly:

He was really distressed when the vase was broken.

But he couldn't accept that there was such an irresponsible guy in his family.

And just when he felt a little disgusted in his heart, Hattori Heiji's voice suddenly became serious,

"Wait, Dad, things don't seem to be that simple."

"Look, the windows over there were smashed too!"

"Oh?" Hattori Heizo calmed down instead.

He was too excited about the vase just now, but he forgot to observe the scene.

Following his son's guidance, Hattori Heizo soon saw the same smashed glass window:

The overall structure of the glass window is still good, but there is a small hole in the middle of the window, and there are spider web-like cracks spreading around the small hole.

"Is this..."

Hattori Heizo's expression suddenly became serious:

"Bullet holes?!"

The marks on the glass looked too much like bullet holes.

The police is a profession that people hate. Hattori Heizo's first reaction was that among the many cases he had handled in the past, some prisoner was released from prison to take revenge on him.

"No, it's not a bullet hole."

Lin Xinyi shook his head, relieving the suddenly tense atmosphere.

He walked to the glass window and carefully observed the broken lines on the glass:

"It's some kind of small object, a crack in the glass from a high-velocity projectile."

"Characteristically, the most obvious difference between it and a bullet hole is..."

"There are more and denser 'concentric rings' of cracks around the bullet holes."

"Concentric circular pattern?" Hattori Heiji was curious.

"Yeah, Heiji, come and take a look."

Lin Xinyi subconsciously taught this newly recruited student:

"When a bullet, or other object, passes through the glass at high speed..."

"The first thing left is the hole, and then the lightning-like 'radiation pattern'."

"And the ones that formed a little later than the radial striations are the cobweb-like 'concentric ring striations'."

"Ah."

Hattori Heiji carefully observed the glass:

"There is indeed a concentric ring pattern around the hole, but it is not very dense."

"Because the object wasn't moving fast enough."

"At least, far less than the speed of a bullet."

Lin Xinyi explained seriously:

"The faster the object flies, the more concentric annular patterns will be formed when passing through the glass, denser and larger in distribution area."

"Conversely, the smaller the force and the lower the speed, the sparser the concentric rings will be."

"As for the broken glass, the area of ​​the concentric rings is small, but the number is not particularly small..."

"It means that the flying speed of that object is far less than that of a bullet, but it is definitely not slow."

"It is very difficult for a human to throw this speed."

"Forehead…"

He paused slightly.

Thinking of Miss Mao Li, Lin Xinyi couldn't help adding:

"It is difficult for normal people to throw this speed."

Then, relying on experience, Lin Xinyi made a rough guess:

"It should be someone who shot the stone in with a slingshot."

"The stone went through the glass and happened to smash the vase in the center of the collection room."

"Slingshot? Prank?"

Hattori Heiji does not quite agree with such speculation:

His family lived in a mansion, with a courtyard outside the house, a high wall and an iron gate outside the courtyard.

The gates are closed at night, how can there be any kid who can climb over the wall and come in to play pranks?

"Let's look for the 'stone' that smashed the vase first!"

"It won't be too late to continue to speculate after we find that 'stone'."

Lin Xinyi said so, then smiled and said to Hattori Heiji:

"Exactly, to exercise your ability to participate in on-site survey work."

"In the scientific on-site investigation work, the police officers in charge of on-site investigation should scientifically divide the investigation area according to the spatial distribution of the scene, the display of objects and other elements."

"Determine the order of investigation, the area in charge of each person, and..."

He didn't even finish his sentence.

Hattori Heiji bent down to touch it, then picked up a small stone from the ground:

"Mr. Lin, this should be the 'stone' we are looking for, right?"

Lin Xinyi: "..."

He had convinced the detectives.

You don't need to know anything about scientific investigation, as long as you go to the scene, the clues will pop into your hands by yourself.