detective world detective

Chapter 1475 Brain Fingerprint Detection

After so many investigations, it turned out that there was still no breakthrough in the problem.

The biggest suspect "Arashiyama Man" who was originally suspected has been clarified, but he is still the biggest suspect.

Even because of the involvement between the other party and the deceased, the other party's suspicion became more and more serious, and even became more detailed.

However, the suspect's amnesia is still a major problem facing them.

"This is difficult to handle."

After clarifying the situation, Rina Kiyota shook her office chair and said helplessly: "Although we have found the suspect and know the emotional entanglement between the three, we feel that we are stuck at the last step."

"Can we only start with the evidence?"

Ayanokouji Fumimaro felt a headache when he heard this and touched the squirrel in his pocket: "But the problem is that the evidence we found at the crime scene is not enough to convict."

"In other words, there is no evidence that the path we took has reached the end." Kiyota Rina sighed: "But the path that can be taken is the problem of amnesia. No matter how hard we try, it is impossible to pry out what we want from the head of a man who has lost his memory. Memories..."

"No, maybe there is."

Hearing Kiyota Rina's words, Karasawa suddenly thought of a machine and said with a smile: "I know there is a machine that can unearth forgotten memories in a forgotten brain, and maybe it can awaken his memory."

"Eh? What is that?" Kiyota Rina was surprised when she heard Karasawa's words: "It sounds so powerful."

"Brain fingerprint detection." Tangze said with a smile, "It's an instrument for brain waves."

"Brain fingerprints?" After hearing Karasawa's words, Ayanokouji Fumimaro's face also showed a slightly surprised look: "Does the brain also have fingerprints?"

"Of course, P300 brain waves are the truth of "brain fingerprinting"."

Karasawa explained: “This kind of brain wave is the brain wave that is generated unconsciously by the brain when a person sees things in the past again.

Even if the person's memory has forgotten it, as long as the brain has stored the picture, it can be detected.

It’s not an accurate but intuitive description, you can think of it as a sense of déjà vu.

It means that you obviously don’t remember this thing or this picture, but your brain will feel familiar. "

"It's amazing, can you even do this kind of thing?" Kiyota Rina exclaimed.

"Of course you can. With the development of technology, many things you wouldn't think of can actually be done."

Tang Ze said with a smile: "Now this is the only direction we can try, and even if the memory is retrograde amnesia, it will not disappear completely, it will definitely remain deep in the memory.

If he had killed someone, the scene would have been deeply etched in his mind. "

"What should we do?" Ayanokouji Fumimaro asked after hearing this: "Does the Kyoto Science Research Institute have this other machine?"

"These technological machines will be trialled in Tokyo first before being rolled out across the country."

Tang Ze thought for a while and said: "I have an impression of the approval of this machine. It should be the machine that passed my approval in the spring, and it should be promoted to Kyoto."

"That's good." Ayanokouji Fumimaro nodded and looked at Tang Ze and said, "Then leave it to you."

"No, no, I want to do a brain fingerprint test, and I need your help with some preparations."

When Karasawa heard that Ayanokouji Fumimaro was planning to give it all to him, he quickly waved his hand and explained: "This instrument is not just for the user to wear, it needs to match the image.

By showing the examiner various images, if P300 brain waves appear, it means that he has seen the previous scene or thing.

In other words, I need you to prepare various pictures of the crime scene, the people involved in the case, and the murder weapon.

Of course, the actual photo of the house he painted is also included. In addition, each type is mixed with various unrelated pictures. "

“Other portraits are easier to find, but it’s best to have ID photos for portraits.”

Karasawa said: "After all, whether it is the deceased or Shibata Reiko, we all have this kind of pictures. We try to eliminate different external causes. In addition, we try to have ten pictures of each type."

"It's a bit like asking Arashiyama Man to find something different."

When Rina Kiyota said this, she smiled and volunteered: "Then leave the photos to me. I'll look for the exteriors and houses on the Internet. For the portraits, I'll ask the reporters at the Press Club upstairs for help."

"Just collect it and put it in a USB flash drive." Tang Ze warned: "When the time comes, let Shibata Takaaki play it on the computer."

"learn."

With the direction to continue the investigation, Kiyota Rina looked happy, gave a playful salute and went to work in a hurry.

"I'm going to take Shibata Takaaki, please prepare the machine." Ayanokouji Fumimaro looked at Karasawa and said.

"no problem."

After Tangze accepted the request, he went to Kesouyan's instrument room to prepare the machine. Although he gave the young man a holiday, it didn't mean that there was no one else.

Moreover, he has personally tried every machine for approval, so there are no obstacles to its operation.

The three people divided the work and quickly completed the preparatory work. Then Karasawa disinfected Shibata Takaaki's head, and immediately attached an instrument for sensing and capturing brain waves to the other person's forehead.

After setting up the cameras for filming, everyone left the room, leaving Ayanokouji Fumimaro sitting next to him to watch over Shibata Takaaki.

After all, Shibata Takaaki is in a state of amnesia, and they can't guarantee how they will react when they see familiar people and things, so leaving one person to watch over them is just in case.

"Mr. Shibata, is there a monitor in front of you?"

Tang Ze instructed using a microphone in the operating room: "A photo will appear every five seconds. You don't have to think about anything. You just need to carefully observe each photo."

Although Shibata Takaaki heard Karasawa's words, his reaction was still a little slow due to amnesia, and he seemed to have no reaction at all.

However, in the past two days, they had all gotten used to Shibata being a bit slow in his amnesia state, so Karasawa did not continue to exhort him, but instead ordered the staff next to him to start playing the pictures.

The first one is an exterior shot, showing the beach and rocks.

But the horizontal line in front of Tang Ze was as smooth as an electrocardiogram, and he was still moving forward smoothly.

Then there were forests and tall buildings. Shibata Takaaki looked at these pictures without any reaction at all.

The picture soon switched to photos of the room designed by Shibata Takaaki himself. Thanks to the group of young scientific researchers still in Tokyo, they were not required to make a special trip to Tokyo to get the photos.

And when this photo appeared, the lines that had been smooth and waveless suddenly jumped up and down, leaving ripples on the monitor for a moment.

"Ah, it really works!"

Rina Kiyota said excitedly when she saw the sudden jump in the display.

And this is why Karasawa put this picture first, because they need to test whether this method works. So the photos of the house drawn by the other party became the best method.

After the first picture took effect, Karasawa continued to play the photos.

Maple forest, waterfall
  Scenery pictures continued to play in front of Shibata Takaaki's eyes, and soon a bridge appeared on the screen.

Although the wooden sign of "Katsura River" was not photographed, this was a long-range photo taken by supervisors at the crime scene.

The moment he saw this picture, although Shibata Takaaki remained expressionless, the beating brain wave diagram in front of Karasawa showed that the other party was not as calm as he appeared.

And all of this is recorded in detail in the data. If the demolition Gao Ming is really a prisoner, then this test record will also become one of the evidences to convict him.

Of course, just seeing the crime scene didn't mean anything. After all, he was found nearby, which proved that he took the initiative to go to the bridge before losing his memory.

In this case, it is normal to have an impression on him.

The playback of pictures still continues, but this time the scenery is no longer played, but the murder weapons are played.

The deceased was killed by strangulation, and the pictures they played were all carefully selected things that might be the murder weapon.

Hemp rope, strapping tape, white plastic rope, ties, wires.
  Pictures kept flashing in front of Shibata Takaaki, but Shibata Takaaki didn't react to any of them.

The emergence of this situation made Kiyota Rina a little disappointed, but Karasawa remained calm.

After all, the murder weapon they selected was based on their forensic experience, and there were not many types. It was normal that no murder weapon was selected.

If you can really identify the murder weapon, you will win the prize.

After the murder weapon, there were portraits. The first thing that appeared was a man wearing glasses. After seeing the man, Shibata Gaoming's brainwaves were not disturbed at all.

After testing, Karasawa released the second picture without any hesitation, and this was a picture of his wife Reiko Shibata.

And sure enough, when this portrait photo appeared, the brain wave chart made waves again.

Seeing this result, Kiyota Rina couldn't help but clenched her fist.

The other party has been under the care of the police since he lost his memory, so everyone can be sure that he has never seen Reiko Shibata since he lost his memory.

According to their investigation, the two can be said to have the closest relationship.

Shibata Takaaki, who is in an amnesia state, can react to Shibata Reiko, which means that the other party's mind still has past memories, and it also proves that their method is feasible.

Soon, portraits appeared one after another, and soon it was the turn of a strange woman.

This was an unrelated picture. Just when Tangze and others thought there would be no reaction, they did not expect that a reaction would appear on the brainwave map.

"Eh?" Kiyota Rina was stunned for a moment, with a look of disbelief on her face, "Why would you react to Reina?"

But her doubts were destined to be answered by no one, and Tang Ze suppressed the surprise in his heart and continued to play the pictures.

Followed closely by a man and a woman, Shibata Gaoming's brain waves returned to calm again.

As Karasawa clicked the mouse to play the next photo, Rina Kiyota couldn't help but feel a little bit of anticipation in her heart.

These photos were all taken by her acquaintances at the Press Club, so she naturally knew the order. She clearly remembered that the next photo was of Katsuyoshi Takemoto.

And if Shibata Takaaki reacted to the deceased, it would prove that he had seen the deceased before the incident.

Considering that the other party's shoes also appeared near the crime scene, it can be determined that Shibata Takaaki is connected to the case.

Even if there is no evidence to prove that he is the murderer now, this is still indirect evidence that can prove that he is related to the case.

At least the major suspects in the case cannot escape.

In this case, at least the Metropolitan Police Department can temporarily restrict Shibata Takaaki's actions.

After all, legally speaking, they have no reason to restrict Shibata Takaaki's freedom.

It's just that the other person lost his memory and had nowhere to go, so the Metropolitan Police temporarily took him in.

But if the time drags on for a long time, the other party may have the idea of ​​​​leaving, which is detrimental to their investigation of the case.

Therefore, if the other party reacts to the deceased, even if this indirect evidence cannot help them directly convict Shibata Takaaki, it can at least restrict him and give them more time to investigate.

However, the result of the machine's appearance at this moment stunned Rina Kiyota.

Because there were no waves on the brain wave chart, the horizontal line remained like this.

"How can it be!?"

Kiyota Rina looked at the screen in shock, unable to believe that such a result would occur.

Although Tangze was a little surprised by this result, he still remained calm and did not suspect that there was something wrong with the machine.

He deliberately kept the photo for two seconds longer, but Shibata Takaaki still had no reaction.

After confirming this, Tang Ze decisively clicked on the next photo. After the portraits were played one by one, Shibata Takaaki didn't react at all.

When the results of the experiment were over and watching Takaaki Shibata being taken away by his colleagues, Rina Kiyota couldn't help but ask: "Karasawa Criminal, what is going on?
  Why does Shibata Takaaki react to my friend Reina, but when he sees Takemoto Katsuyoshi, he doesn't react at all?

Is there something wrong with the machine? "

"there is a problem?"

Ayanokouji Fumimaro on the side didn't know why his subordinate was suddenly so excited, but from what she said, it seemed that something went wrong in the experiment.

When Kiyota Rina heard her boss's question, she quickly told Ayanokouji Fumimaro about the scene she had posted earlier.

"Karasawa Criminal, is there no problem with the machine?" Ayanokouji Fumimaro asked after hearing this and looked at Karasawa.

"Of course, the previous images show that Shibata responds to familiar things."

Karasawa nodded and said, "I didn't expect him to react to Miss Reina later on, but not to Takemoto Katsuyoshi at all.

But I still insist on my opinion. This is not a machine error, but a real reaction deep in Shibata's memory.

This is the result brought to us by science. Whether we believe it or not, we must accept this "phenomenon" and find the reasons behind it. "

"Then I'll ask Rena first if she knows Shibata Takaaki!"

When Kiyota Rina heard this, she immediately ran towards the press club, obviously planning to ask her friends for clarification.

(End of this chapter)