In Conan, people have a brain option system.

Chapter 19 Deception
When it is impossible to determine whether the suspect's confession is true,
By asking the suspect to repeat his confession in reverse order, one can often reach a conclusion.

Many prisoners will make up a story to deal with the interrogation when they are interrogated by criminal police.

When the police ask normal questions, you can naturally answer fluently.

But if he is asked to repeat what he just said in reverse, the fabricated content will usually reveal its flaws at this time.

Since Miwako Sato, Masumi Sera and others already knew about it, Akikawa Sosuke already had a story to tell when Takuto Nakajima questioned him.

So Masumi Sera asked Miwako Sato to ask as many details as possible when questioning Akikawa Sousuke.

If Akikawa Sosuke's statement was a false statement prepared in advance to deal with the police.

So when Sato Miwako asked him about the details, he could only make it up on the spot.

If Akikawa Sosuke took too long to think when asked about the details, it would seem unnatural.

However, it is difficult for content fabricated in a short period of time to be reasonable and logical.

When Akikawa Sosuke finished his story,
Then suddenly ask him to repeat it backwards.

At this time, a lot of new content had been added to the original story that Akikawa Sosuke had fabricated because of Sato Miwako's constant questioning.

If the confession did not match the facts, it would be difficult for Akikawa Sosuke to tell everything he said in full and in reverse order.

The reason why detective Takagi Wataru was asked to take notes outside the door at the beginning was to let Akikawa Sorasuke relax his vigilance.

If he had known in advance that everything he said would be recorded, he would definitely be more vigilant.

Masumi Sera was sure.

If Akikawa Sosuke was making up facts, he would definitely be exposed here.

"Say it backwards...what does that mean?"

Akikawa Sosuke seemed not to understand what Sera Masumi meant, and a look of confusion appeared on his pale face.

"Just start from the moment Mr. Akikawa was knocked unconscious, and repeat everything from the end to the beginning."

"What's the point?"

"Just to be on the safe side, to confirm whether Mr. Akikawa is lying."

Masumi Sera had no intention of hiding his purpose, so he said it directly.

After she said that, she gave Sato Miwako another look.

Sato Miwako understood and nodded slightly.

"..."

Akikawa Sosuke opened his mouth slightly, with an expression of disbelief on his face.

It seemed as if he couldn't believe that the police didn't believe his confession.

After a moment, he spoke slowly.

"Well... after the man on the motorcycle confirmed that my mother was no longer moving, he opened my mouth, forced a lot of sleeping pills into my mouth, and then knocked me unconscious..."

"How did Mr. Akikawa know that it was a sleeping pill?"

"It was Officer Nakajima who said he thought I was going to commit suicide by taking sleeping pills after killing my mother... So I guess the person fed me sleeping pills."

"That guy Nakajima..."

The corner of Sato Miwako's eyes twitched, and she once again suppressed the anger in her heart.

"Excuse me, could you please describe again where he took the pills from? And what kind of pills they looked like."

"It looks like a white round pill in a black bottle."

"How much did you eat?"

"a lot of."

...

that's it.

Under the continuous questioning of Sato Miwako and the confirmation of Sera Masumi.

Akikawa Sosuke repeated what he had said from the beginning to the end.

When Akikawa Sosuke just started to retell the story, Sera Masumi was still full of confidence.

However, as Akikawa Sosuke repeated more and more, her confident heart began to waver.

"That's not right. I remember it too clearly... Although there are slight differences in the content, the details and the general process are basically the same."

"If these were false, how could he remember them so clearly?"

It is difficult for ordinary people to repeat a lie backwards.

Akikawa Sosuke actually repeated the entire story without any errors, adding a lot of details.

"Unless Qiu Chuan has an incredibly good brain, how could he remember so many details?"

"What's more, his brain was just affected by carbon monoxide poisoning, and he was injured twice in the head yesterday..."

"It seems that what he said were really the facts that he witnessed with his own eyes?!" Sera Masumi was quite shocked, and gradually began to believe that the murderer was someone else.

"Thank you for your cooperation, Mr. Akikawa."

After finishing her story, Sato Miwako whispered her thanks to Akikawa Sosuke.

"Now you are sure that I am not a criminal, right?" asked Akikawa Sosuke.

"No... I can only say that the possibility that Mr. Akikawa is the culprit is decreasing."

"But we still cannot deny that Mr. Akikawa is suspected of killing Ms. Ryoko."

"Because of the existence of the three insurance policies, Mr. Akikawa will directly receive more than 100 million yen in compensation for Ms. Ryoko's accidental death."

"Insurance? What do you mean?"

Akikawa Sosuke showed a very confused expression.

"Ms. Ryoko purchased two life insurance policies in addition to her car's self-liability insurance."

"Your family is not wealthy, and Ms. Ryoko does not have a formal job. It is already very tight to rely on the income from part-time work to cover living expenses. It is unreasonable for her to buy so much insurance."

"..."

Sato Miwako's words once again made Akikawa Sousuke stand there with his mouth open.

After a long while, he seemed to have just reacted. His face flushed and he raised his voice slightly.

"You...you think I killed my mother for the insurance money?"

Sato Miwako didn't say anything, obviously agreeing with Akikawa Sorasuke's statement.

"That's ridiculous! If I wanted the insurance money, why would I take sleeping pills and commit suicide?"

Anyone could hear the suppressed anger in Akikawa Sosuke's tone.

"It's possible that Brother Akikawa doesn't know about insurance." Conan said.

"But didn't you detect fingerprints on the dagger? Although I don't know what happened, you can compare it with my fingerprints and you will know, right?"

Upon hearing this, Sato Miwako looked at Takagi Wataru.

"Mr. Akikawa's words make sense. Since the forensic department has detected the fingerprint, can't we just compare it with Mr. Akikawa's fingerprint?"

Upon hearing this, Takagi Wataru also became embarrassed in an instant.

"Uh...this..."

Miwako Sato is very familiar with Wataru Takagi.

She looked at Takagi Shigeru's hesitation and evasive gaze, and then she reacted.

"Takagi-kun, you're not lying to me, are you?"

"No, that's not what Officer Sato thinks. Let me explain!"

As Takagi Wataru said this, he wanted to lean over and tell Sato Miwako the truth in her ear.

However, he was blocked by Sato Miwako's hand, and then he saw anger emerging in the depths of Sato Miwako's beautiful eyes.

"Okay, no need to explain. I can probably guess what's going on."

Sato Miwako's tone gradually became colder, and beads of sweat began to appear on Takagi Wataru's forehead.

"So you guys are lying to me again?"

A few moments.

Akikawa Sosuke, who "realized it late", then uttered a sound full of disbelief.

The word "again" in his words sounded particularly harsh to Sato Miwako and others.

Because they all know.

The Akikawa Sosuke in front of him had just been deceived by another detective in the morning.

"You didn't detect any fingerprints! Then why are you still doubting me? I don't even have gloves or anything like that!"

Akikawa Sosuke looked at Sato Miwako and others and asked loudly.

"The absence of fingerprints does not mean that you are not a suspect. After all, there are many ways to remove fingerprints."

Conan whispered.

"You first said I was going to kill my mother and then commit suicide, and then you said I killed my mother for the insurance money."

"I asked you why I would commit suicide if that was the case, and you said I wasn't doing it for the insurance money."

"Now you can't detect fingerprints, and you say I removed them."

"Then let me ask you again, if I was planning to kill my mother and then commit suicide from the beginning, why would I deliberately remove the fingerprints?!"

"Or are you trying to force a crime on me and force me to confess, just like Officer Nakajima did this morning?"

Akikawa Sosuke's angry words made everyone in the room's pupils shrink instantly.

Dear readers, please read the latest chapter every day even if you are a book lover. Thank you.
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(End of this chapter)