Ke Xue: The Truth Is Exposed, Let Kisaki Eri Beg For Forgiveness

Chapter 20: Step By Step, A Technique That Shocked Everyone!

Shiraishi Gen's temperament has changed.

No longer gentle and elegant, no longer making people feel like spring breeze.

A smile appeared at the corner of his mouth.

It's not cold.

But it looks extremely weird and perverted!

Keeping staring at Shiraishi Gen, Kudou Shinichi couldn't help but sweat on his palms.

He feels that Shiraishi Gen is now the strongest psychopath he has ever seen, like Professor Moriarty, like Hannibal!

Officer Megure saw the sudden situation in the square and wanted to step forward to stop it immediately.

"Wait!" Kudou Shinichi grabbed Officer Megure and said in a low voice.

"What's wrong?"

"Wait a minute, Shiraishi Gen suddenly has this mutation, maybe it's his skill!"

Skill?

Officer Megure was stunned to hear what Kudou Shinichi meant.

Even he believed that Mr. Yamada Shoji was highly suspected of murdering Saito Mingyue.

"Yamadensoji returned the laboratory key, which is an indirect alibi!" Officer Megure said: "This has the testimony of the security department personnel!"

Kudou Shinichi asked: "Did Yamadensoji have a sufficient alibi for all other times except for the time he was in the laboratory?"

"Yes!"

Officer Megure nodded and said: "After Yamada Shoji left the laboratory, he took another teacher's car home. He stayed at home with his wife at night and had no time to commit crimes."

"Where are Yamadashoji's vehicles?"

"He said there was a malfunction!" Officer Megure replied.

"If there is a malfunction sooner or later, it will malfunction later. But it happened yesterday when Saito Mingyue disappeared. There is a problem here!"

Kudou Shinichi pondered: "He only had no alibi when he was in the laboratory, but the indirect alibi provided by the security office was not sufficient and could not prove anything!"

"But the Metropolitan Police Department sent people to the laboratory to search. They conducted a comprehensive search and found no body of Saito Akatsuki hidden in the laboratory!"

Officer Megure looked at the trembling Yamadensoji and said in disbelief:

"If Mr. Yamadensoji really murdered Saito Akatsuki, there would definitely be blood stains in the laboratory!"

"Forensic doctors used specialized testing methods and used luminol reagents, but no blood stains were found!"

Luminol reagent is a commonly used blood test by modern forensic doctors to determine murder scenes.

Using the chemical reaction of the luminol reagent, as long as there is a little bit of human blood on the floor, even if it is human blood that has been several years old, it can be detected.

Moreover, the chemical reaction of luminol reagent is extremely difficult to eliminate.

Ordinary people cannot solve this problem by searching on the Internet.

Because online methods cannot only reduce the luminol reaction, but cannot eliminate it.

Therefore, the luminol reagent reaction test is a great weapon for criminal investigation!

"How do you explain these?"

“This is also what I’m confused about, I’m not clear yet!”

Kudou Shinichi shook his head and whispered:

"Let's take a look at Gen Shiraishi for now, you Metropolitan Police Department can wait for a cigarette!"

...........

Didan Middle School, Plaza.

Countless lines of sight were projected towards him, but they couldn't give Yamada Shoji any sense of security.

Because no one dared to stop him.

There are not even police officers from the Metropolitan Police Department!

Don't they all fear Shiraishi Gen!

Afraid that he is a psychopath and a murderer?

No, it's all a pretense!

Yamada Shoji tried hard to stay rational, but when facing Shiraishi Gen, his body still trembled involuntarily.

"Shiraishi Gen, who are you?" Yamada Shoji said loudly.

"I am Shiraishi Gen!" Shiraishi Gen's fingers traced across Yamadensoji's swollen face, making Yamadensoji feel as if a centipede was crawling on his face and shuddered.

"What do you want to do? I didn't kill anyone!" Yamada Soji's hair stood on end.

"Can you hide it from the Metropolitan Police Department? Can you hide it from me?" Shiraishi Gen looked at Yamadensoji calmly: "I am far scarier than you think!"

"You killed Saito Akatsuki-san!"

"Or to further speculate, you killed Saito Mingyue because of emotional problems!"

"I didn't kill Saito Mingyue, I don't know what you are talking about."

"I was in the laboratory all that time!"

Yamada Shoji stopped looking into Shiraishi Gen's eyes and forced himself to calm down.

"Oh?" Shiraishi Gen chuckled: "You didn't kill anyone, why didn't the people from the Metropolitan Police Department come to stop me?"

"They already have doubts about you!"

"The aging and disrepaired surveillance in the laboratory and the insufficient alibi are all your doubts!"

Yamadashoji felt that he had gradually regained his senses and was no longer so afraid. He gritted his teeth and said loudly:

"Assuming that I really murdered Saito Akatsuki, how could there be no blood in the laboratory?"

"The laboratory is so small, how can we hide the body of Saito Mingyue?"

Shiraishi Gen didn't answer and blew lightly on the cigarette held between his fingers.

A faint white smoke rose from the scarlet cigarette butt, filling the space, causing Yamada Shoji to panic.

Shiraishi Gen never smoked, but looking at the smoke, he showed an intoxicated expression.

"Are you sure you want me to tell you the reason? The cigarette is almost half burned and you don't have much time!"

"I didn't kill anyone, otherwise the Metropolitan Police Department would have detected it using luminol reagent, but there is no blood stain in my laboratory!" Yamada Shodera still defended.

Kudou Shinichi frowned secretly.

Senior Shiraishi Gen seems to have gone too far.

Even if the Metropolitan Police Department police officers do not have strong reasoning ability, how can they fail to conduct on-site inspections carefully?

As long as Yamadensoji kills someone, there will definitely be traces of blood, which cannot escape the test of the luminol reagent.

"There are no blood stains in your laboratory because the blood stains left by your murder have been removed."

Shiraishi Gen said calmly: "Luminol reagent is a commonly used method in forensic medicine, because the chemical properties are difficult to eliminate. Even if you search on the Internet, it is difficult to find the elimination method!"

"But you, Yamadensoji, are a chemistry teacher. It's not difficult to remove the luminol reaction reagent, right?"

“Just use high-concentration sodium hypochlorite to destroy mutated DNA and blood proteins, then use disodium EDA to thoroughly couple the metal ions in the blood to remove iron ions, and then rinse with water.

This will completely eliminate the blood, thereby preventing the luminol reagent from chemically reacting with the blood! "

Yamadensoji froze on the spot, completely confused.

How on earth did Shiraishi Gen know that he eliminated the luminol reaction by doing this.

When Kudou Shinichi heard what Shiraishi Gen said, his body trembled as if he was electrocuted.

Solving the luminol reaction was something he had not considered.

If, as Gen Shiraishi said, the chemical properties of luminol can be eliminated, the case will completely change the direction of the investigation.

Kudou Shinichi took a deep breath and ordered Officer Megure:

"Ask the forensic doctor at the Metropolitan Police Department to see if the luminol reaction has been resolved!"

Officer Megure called in a forensic doctor and got a positive answer. This could indeed be done to dissolve the chemical reaction of luminol.

"Why didn't you consider this before?" Kudou Shinichi asked the inexperienced forensic doctor.

"Even if Yamadasoji did this, I think it would be difficult to hide the body and transport the body away. I think this possibility is very small!" the forensic doctor replied.

"You're smart!" Kudou Shinichi criticized unceremoniously.

Yamadasoji was already panicking and swallowing his saliva frantically.

"I don't know the reaction of neutralizing the luminol reagent. I didn't kill Saito Akatsuki-san!"

"And even if the luminol reaction can be eliminated, where did Saito Akatsuki-san go? It's impossible for such a big person to disappear!"

"There is only one way to hide a body, she was cut into pieces by you!"

Shiraishi Gen said quietly: "I think the body parts are still hidden somewhere in the school!"

Dismemberment?

Kudou Shinichi was shocked, but immediately felt that it was impossible!

how come?

——

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