In Conan, people have a brain option system.

Chapter 18 "Taking the bait"

“Bait.”

Conan was delighted, and then asked:
"By the way, Brother Akikawa, did you notice any special features on the murderer's hands? For example, tattoos, nail polish, scars, etc. Any special features?"

Before entering the ward, Conan asked detective Takagi Shigeru for help alone.

That is, if you hear yourself tapping the microphone, you will come in to report that a fingerprint has been detected.

And when reporting, you must first report the true information.

The purpose is to increase the credibility of the subsequent report.

"Because there were no fingerprints detected on the dagger, and Akikawa Sosuke didn't have gloves."

"If he was the murderer, then he could only have wiped off the fingerprints on the dagger with the absorbent cotton clothing on the victim, and then used the blood to cover the grease and skin flakes left on the clothing."

"It's different from the trap set by Miss Sera. It's 'police secret information' known only to the police."

"This is 'criminal-specific information' known only to the murderer and the police."

"Only a criminal who wiped off his fingerprints would think that the police could not detect fingerprints on the dagger."

The cyanoacrylate fumigation method, also known as the super glue fumigation method, is a method commonly used by modern forensics that relies on heating and volatilization to form a white polymer to reveal fingerprints.

Although this method cannot 100% reveal fingerprints that have been wiped with blood.

But the mere existence of this possibility is enough.

"As long as Akikawa Sosuke doesn't know the results of the forensic department's appraisal, he can't be 100% sure that his fingerprints have been completely processed."

Conan seems to be asking Akikawa Sosuke about the hand characteristics of the murderer.

But what he actually wanted to know was whether the criminal had directly touched the dagger with his hands.

"Since he heard Officer Takagi say that fingerprints of someone other than Akikawa Ryoko were detected on the dagger, if he is the criminal, he will definitely think that his fingerprints were not handled cleanly."

"In this case, he has no way to evade the police by saying that 'a third person wore gloves to commit the crime' or something like that."

"Because in the face of 'concrete' evidence, rebuttal seems suspicious."

"From the perspective of the 'culprit' Akikawa Sosuke, the Metropolitan Police Department has confirmed that someone touched the hilt of the dagger with their bare hands."

"So Akikawa Sosuke could only make up a hand feature that was completely different from his own."

"But no matter what he answers, he must be the murderer!"

"Because, under the circumstances yesterday, he was the only one who could have touched the dagger with his bare hands!"

The various investigation results of the Metropolitan Police Department indicate that Akikawa Sosuke is the only person with a motive in this case and the only person who can benefit from the death of Akikawa Ryoko.

As long as we consider that Akikawa Sosuke is the murderer, and combine it with the clues at the scene, we will be able to deduce his modus operandi.

This is Conan's absolute confidence in his reasoning ability.

As long as Akikawa Sosuke does not deny that the criminal touched the dagger with his bare hands, it is equivalent to him admitting that he is the criminal.

But because of the presence of Takagi Wataru, Akikawa Sosuke had no way to deny that the criminal had touched the dagger with his bare hands.

In the case of information asymmetry, it is obvious that we have the advantage.

Akikawa Sosuke looked at the confident expression on Conan's face and his heart was pounding.

indeed.

After hearing the detective who came in later say that the Metropolitan Police Department had detected other people's fingerprints through the cyanoacrylate fumigation method, he couldn't help but doubt his own handling of the matter.

But then, when he heard Conan asking him about the characteristics of the criminal's hands, Akikawa Sosuke keenly noticed something.

That is--

"Sure enough, Nakajima didn't hand over the recording in the ward this morning!"

If Conan knew that he had already learned the results of the identification department, he would never ask himself this.

Then the only possibility is that Takuto Nakajima did not tell them about this matter.

Through contact with Takuto Nakajima in the morning.

Akikawa Sosuke is convinced that Nakajima Takuto has the sense of justice and responsibility of a detective.

But in the end, he will definitely be the one who puts his own interests at the most important position in his heart.

So, for such a person, as long as his own practical interests are threatened, the balance between his sense of responsibility and his own interests will definitely tilt towards the latter.

To achieve this goal, two things need to be done.

One is to accumulate his anger and reduce his patience.

Eventually, Nakajima Takuto lost his mind and forced himself to confess and was discovered.

The second is to finish him off again to reduce his psychological endurance.

He increased the mistakes made by Takuto Nakajima by damaging his body through overeating.

In this case, the recording of his huge mistake would become an unstable bomb that threatens his career as a criminal police officer.

When you don't know when the bomb will explode and affect you, the safest option is obviously to dismantle it completely.

As expected, Takuto Nakajima did not dare to hand over the recording.

At least, everyone present did not know that they had already known the results of the forensic examination.

Conan had a confident smile on his face and stared sharply at Akikawa Sorasuke who was shocked, and saw that he opened his mouth.

"No, how is this possible..."

Conan heard the words coming out of Akikawa Sosuke's mouth that reflected his inner turmoil.

"Could it be that you can't even make up a random hand feature? Are you completely panicked just by knowing that your fingerprints have been exposed?"

Conan thought to himself.

Then I heard Akikawa Sosuke continue:
"I clearly saw that the person who stabbed my mother was wearing gloves."

Akikawa Sorasuke's words made Conan's eyes widen suddenly, but his pupils suddenly shrank.

The confident smile on his face froze in an instant.

He had clearly blocked Akikawa Sosuke's escape route, leaving only one route that would eventually lead to a trap no matter which way he went.

However, he never expected that Akikawa Sosuke would still walk towards the blocked road.

Conan has been observing Akikawa Sosuke's reaction.

His eyes suddenly widened in shock.

Then he frowned to show confusion.

Glancing up before speaking is a sign of reminiscing.

Finally, a definite answer was given.

All these reactions were too natural.

It really is like the performance of someone who hears something for the first time that is different from what he remembers.

indeed.

No matter what Akikawa Sosuke answers about the description of the criminal's hand features, he will be the criminal.

But Akikawa Sosuke directly stated that the criminal was wearing gloves, which makes the situation a different matter.

"Could it be that he is really not the criminal?!"

"Is there really someone who rode a motorcycle, caused a car accident, killed Akikawa Ryoko, and ran away?"

Masumi Sera noticed that Conan was temporarily shocked because things did not develop as expected.

So he hurriedly guided Sato Miwako to continue asking Akikawa Sorasuke.

"The interrogation is not over yet."

"As long as Qiuchuan says anything that is inconsistent with the facts, he will still not be able to get rid of suspicion."

However, until the questioning is completed.

Akikawa Sosuke didn't say anything that made them realize that it was inconsistent with the facts or that there were problems with the logic.

Masumi Sera looked at the detailed records that Takagi Shigeru had taken without missing a word and nodded.

Then she looked at Akikawa Sosuke and said with a smile:
"Excuse me, Mr. Akikawa, could you please repeat what you just said in reverse?"

(End of this chapter)