Coroner Coroner

With the exception of Asai Naomi, the three police officers replied in bewilderment:

"Scalpels are similar, right?"

"Can't you just choose one?"

"Okay, then you can choose one at random." Lin Xinyi said so, turned around, put on medical latex gloves, and took out the stainless steel surgical tray.

Then, in the blank eyes of Sato, Takagi and Shiratori...

Lin Xinyi placed five scalpel handles of different lengths in sequence on the tray.

In another tray, 24 disposable surgical blades of various shapes were selected and placed.

"The scalpel is not one piece."

"The handle can be used frequently, but the blade needs to be changed every time."

"According to different operations, the knife handle and blade are selected for different parts."

"There are 24 blades here now? They are number... blades."

“5把刀柄?分别是3号、4号、7号、3号加长、4号加长刀柄。”

"Think of yourself as the murderer. At this time, Ren Yebao is drunk and lying on the sofa? Waiting for you to kill him."

"You have to choose a handle at random from among them? One handle, combined into a scalpel that is convenient for cutting the neck."

"This..." Sato, Takagi and Shiratori were completely dumbfounded.

Especially Ms. Miwako Sato.

Those blades that shone coldly and looked similar to each other were reflected in her eyes? She was dazzled for a while:

What are you doing... aren't they all the same?

Why is this scalpel model harder to recognize than the lipstick model? !

"Don't think about it."

"Substitute yourself into the identity of the murderer? Choose a scalpel to commit the crime."

Lin Xinyi encouraged and urged again.

The three police officers, Sato, Takagi, and Shiratori were all at a loss? They had to follow their instincts and choose a combination from the pile of handles and blades at random.

Only Shiro Asai reacted the most calmly:

"If you want to use a scalpel to kill people and cut open a neck, it's better to use a large round blade."

Although the 24 blades looked no different in the eyes of Sato and others.

However, as a professionally trained doctor, Asai Shigemi can see the difference at a glance:

Under normal circumstances? The blades like the "Yuanyue Scimitar" are mainly used for velopharyngeal surgery in the Department of Otorhinolaryngology.

Small round blades are used for fine cutting in ophthalmology and hand surgery;

Sharp blades are used to cut blood vessels, nerves and heart tissue;

The No. 10 medium round blade and No. [-] large round blade are used to cut skin, subcutaneous, muscle and periosteum.

To kill someone, to cut off the target's neck with a single knife, naturally you have to choose a knife. These have long and sharp blades, and are generally used in general surgery and orthopedic surgery.

"I choose a No. 23 blade? With a No. 4 ordinary handle."

Asai Chengshi said his choice.

And as soon as he said this, he immediately realized that something was wrong:

"and many more…"

"In that photo just now? The murder weapon used by the murderer..."

"It's a No. 23 blade with a No. 4 ordinary handle!"

"How could he select the correct combination from so many blade handles? Could it be..."

Asai Chengshi suddenly reacted:

"The murderer also has medical knowledge?"

At this moment, everyone finally knows? Why did Lin Xinyi say that Oda Kirito is unlikely to be the murderer.

Oda Kiritoshi is also an underground rock singer? A proper medical layman.

How could he pick the right combination among the bewildering array of hilts and blades?

It's like asking a straight guy to find the shade that his girlfriend wants to buy from different brands and series of lipsticks? It's a job that can drive people crazy.

"Could it be a coincidence?"

Takagi tried to raise an objection.

Although both Sato and Shiratori chose the wrong combination just now, he accidentally selected the combination of No. 4 hilt and No. 20 blade, which can be regarded as the correct answer.

"Because the No. [-] blade has a longer blade, I subconsciously chose one of them."

"Pair it with a knife handle of suitable length, and it doesn't seem to be very difficult to get the answer..."

When Gao Mushe said this, he overturned Lin Xinyi's speculation.

This is why he insisted on doing experiments.

Experiments have proved that one out of three laymen gets the correct answer.

This probability is not low at all.

"Maybe, maybe the murderer, like me, chose the right one at random?"

Takagi spoke nervously about his own analysis.

This big leader even scolded the lovely Miss Meihezi, and as a junior behind Miss Meihezi, he was even more restrained when he stood up and sang the opposite.

And Lin Xinyi will not be unhappy because of being questioned:

"Your doubts are very reasonable."

"If it's just the right combination of handle and blade, there's still a good chance it's a coincidence."

"but…"

Lin Xinyi paused slightly, and looked at Gao Mushe encouragingly:

"Officer Takagi, try to install the blade you selected on the handle."

"En." Gao Mushe nodded, and then wanted to reach out to grab the handle and blade he had chosen.

"and many more!"

Asai Chengshi stopped his dangerous operation in time:

"Takagi, don't just grab the blade with your hands."

"The blade of the scalpel is not installed like this."

"Eh?" Takagi She was slightly taken aback:

In his opinion, the scalpel handle and blade are similar in principle to the razor handle and blade.

Just grab the blade with your hand and snap it into the groove on the head of the handle, isn't it enough?

"You can't use your hands directly."

"Because the surgical blade is extremely sharp, it is easy to scratch your hand during installation."

"According to the correct operation steps, you should hold the tail end of the blade side of the handle with your left hand, hold the needle pliers with your right hand, clamp the back side of the upper part of the blade hole at a 45° angle, hold the handle with your left hand, and align the hole with force downward. "

Narumi Asai suffered from an occupational disease, and explained to Takagi Tsuru the standard operation of installing a surgical blade.

As he spoke, he also demonstrated that he picked up a pair of needle-holding forceps needed to install the blade from the cabinet of surgical instruments.

"Wait...needle pliers?"

Asai Shiromi suddenly reacted again:

"In that photo, isn't there a needle-holding forceps next to the surgical instrument box at the scene?"

"If the murderer took out the needle-holding forceps, wouldn't that mean..."

"Not only did he choose the correct handle-blade combination, but he also knew how to install the scalpel blade properly?"

"Yes."

Lin Xinyi nodded approvingly:

"And it's not all suspicious:"

"Asai, you are used to how to distinguish surgical instruments, so you still don't realize the strangeness."

"But for a layman, it is a challenge in itself to correctly identify the 'needle holder' from the pile of surgical instruments."

Surgical instruments look similar, and there are many types.

Just "pliers", there are:

Sponge forceps (curved, straight), needle forceps (thick needle, fine needle), hemostatic forceps (straight full teeth, curved full teeth), mosquito hemostatic forceps (curved, straight), tissue forceps, cloth forceps.

The murderer was able to find the needle-holding pliers used to install the blade from so many "pliers".

This in itself is highly doubtful.

What's more, including the hemostat, every choice he made was correct.

"You say the murderer was randomly selected, but he was not randomly selected."

"The handle, blade, and needle holder are all selected correctly, and I even know the correct way to install the scalpel."

"This is obviously prepared!"

Lin Xinyi paused for a moment, and solemnly concluded:

"If I'm not mistaken, the murderer should be the same as the deceased Ninoho..."

"He's a doctor!"