Coroner Coroner

The flat and wide black fuselage side panel was also carefully removed by the police officers.

"and then?"

Looking at this big black plastic plate, everyone was puzzled.

Lin Xinyi, however, pointed to the plastic plate that had just been removed from the TV, and instructed the police officers:

"You take some textiles such as clothes and rub against this plastic plate."

"Friction?" The police officers were slightly taken aback.

"friction!"

Lin Xinyi felt like he was teaching elementary school students.

And think about it carefully... Breathing, lighting, adding tape... It seems that what he teaches is indeed something that elementary school students can do.

Even the trick that is used now is also within the knowledge of elementary school students:

"Triboelectricity, understand?"

"Electrify the plastic sheet by rubbing it, and then lay the electrostatically charged plastic sheet where it might leave a dust footprint."

As a forensic doctor, Lin Xinyi will appear on the scene every time with his colleagues who are also technical investigators.

And the most equipment they use to extract dust footprints is an electrostatic adsorber.

There is no ready-made electrostatic adsorption device now, so Lin Xinyi can only try to let these police officers use soil methods and materials to create electrostatic adsorption devices through human friction.

"When a tiny non-static object is close to an electrostatically charged object, due to the phenomenon of electrostatic induction, the end close to the electrostatically charged object will induce the opposite electrical property to that of the electrostatically charged object, which in turn causes the tiny object to be attracted and attached to the electrostatically charged object. on the object."

Lin Xinyi briefly explained the principle of electrostatic adsorption:

"So as long as the electrostatically charged plastic sheet is spread where there may be dust footprints, the dust on the object will be attracted to the plastic sheet due to the electrostatic adsorption effect."

"The dust on the object is transferred to the black plastic plate, and because the background color difference is strengthened, the dust footprints that were indistinguishable by the naked eye can be relatively clearly displayed."

He explained it at length.

I don't know if the police officers understood it, but they were busy with enthusiasm anyway.

Facing this black plastic board, a few young guys took off their coats and rubbed it hard, and soon the board was rubbed and burned.

Then, according to Lin Xinyi's instructions, they tried to spread the static-charged plastic sheet on the guardrail of the balcony.

This guardrail handrail is made of marble, and the upper edge is relatively wide, which is very suitable for using your feet when climbing.

Therefore, Lin Xin regarded it as the primary suspect target for possible footprints.

And the result was not unexpected.

The police officers spread the black plastic plate on the marble handrail, wait a moment and then pick it up...

An almost complete dust shoe print appeared clearly on the black plastic board.

"It's over!"

Seeing this, Zunde Seyu's face turned green:

The previous handprints only made him feel dangerous, but now this shoeprint is a really deadly thing!

Because his left foot is still wearing the shoes of the time!

At that time, he was in a hurry to appear in front of everyone, and there was a murder case at home, the servant would definitely come to his room to find him soon...

Therefore, his solo activity time after committing the crime is very short.

In such a short period of time, Zunde Seyu needed to jump from the balcony to the opposite wall, climb back to his room, hide his gloves and mask, change into clean clothes, and re-wrap his right leg in plaster. .

It is really hard for him to do so many things in 2 or 3 minutes.

When the time was tense, Zunde Seyu couldn't care about changing the most inconspicuous shoes——

After all, he deliberately watched it when he left the scene, and he did not leave any shoe prints.

But never imagined...

Lin Xinyi used a trick of elementary school-level knowledge to find out the shoe prints that he had never seen with the naked eye!

Thinking of this, Zunde Seyu's heart was already beating wildly.

He could only pray, praying that Lin Xinyi would let him, the "disabled person", not come to him with the fingerprints and footprints.

But just then...

"Handprints and footprints have been found."

"Then... Mr. Zunde Seyu, be the first to compare!"

Lin Xinyi turned around and looked at Zunde Seyu in the wheelchair.

"What, what?!"

Elder Seyu's face was completely bloodless:

"Why did you ask me to check..."

He pretended to be disabled, how could Lin Xinyi still think of him first? !

Could it be... Has your disguise been discovered from the beginning?

And Lin Xinyi's answer is:

"Because you talk too much."

"And... I was just mocked by you just now, and I'm still quite upset."

Chapter 59

"Come on, Mr. Seba."

Lin Xinyi smiled and walked slowly.

In the eyes of Zunde Seyu, this ordinary young man dressed like an insurance salesman seemed to be a sun with infinite heat at this moment.

Just a little closer to him can burn him into sweat.

He clenched the handrail tightly, his muscles suddenly tense, and his body bent forward slightly, as if trembling from fear, but also as if he instinctively wanted to run away.

In the end, the moment Lin Xinyi really got close...

Zunde Seyu's body softened, and his whole body was like tar that had been sunburned, and he slumped into a wheelchair:

"No need to check... I plead guilty."

"Manager Yamazaki was killed by me."

He admits it, because there is no way to deny it.

Lin Xinyi has the handprint of his full profile, as well as the shoe print of this shoe on his feet.

If you go to his room to search now, you can still find gloves, masks and clothes with gunpowder reaction that he couldn't deal with due to the lack of time.

The combined evidence is enough to convict him, and he has no room for quibble.

Just like this, after a while of silence, under the surprised gazes of the guests, servants and police officers, Zonde Seyu supported his limp body and slowly stood up from the wheelchair:

"There's no point in pretending now..."

"My leg injury is fake, please take me back to the Metropolitan Police Department."

"Sure enough."

Lin Xinyi calmly retracted his eyes, and then said naturally in the commander's tone:

"Go ahead and handcuff this Mr. Seba."

"This case is over."

"Uh... yes!" The police officers reacted after realizing it:

A case that left the elites of the search class helpless, was solved so easily.

For the first time, they discovered that the original case could be broken like this:

You don't need any otherworldly wisdom, you don't need any unrestrained imagination, you just need to make good use of criminal science and technology like Lin Xinyi, and steadily and steadily investigate traces and collect clues, and you can get to the bottom of the truth.

Thus…

No need for a detective, even these "background boards" can solve the case!

These police officers, who have been called by famous detectives as their younger brothers for many years, finally realized their real shortcomings.

As for the great detective Kudo Shinichi, his mood at the moment is also quite subtle.

He kept the truth from telling the truth, just waiting to observe how Lin Xinyi solved the case.

Although Lin Xinyi's method of solving the case is not subtle, it can touch him even more:

"The science and technology of on-site investigation..."

"If these technologies are popularized, it is estimated that many detectives will lose their jobs, right?"

Just as the copyist was replaced by the printing press, the robber is helpless due to the popularity of mobile payment...

Seeing that Lin Xinyi easily solved the case with the kind of skills that elementary school students can learn, Kudo Shinichi, a famous detective, was unconsciously worried about the future of this profession.

In a trance, the tide of the times seems to have rolled in.

At this time, the Mumu Police Department was also keenly aware of the true value of Lin Xinyi:

Everything in Lin Xinyihui can be learned by ordinary people!

He can break the vicious circle of Ke Xue and bring science to the Metropolitan Police Department!

"Brother Lin!"

"It's really thanks to your help this time, then..."

Just like the hairdressing director who persuaded people to apply for a card every time they met, the Mumu Police Department greeted them enthusiastically again:

"Our Metropolitan Police Department invited you to be the forensic division manager..."

"let me think again."