Rebirth 2014: I, the King of Criminal Investigation

Chapter 248 The Upper Limit of Human IQ

Can you tell me more about this... Yu Dazhang coughed lightly, and when he saw Ye Zhiyu looking at him, he glared at him fiercely.

Although he also wanted to know the details, it was not the right occasion and he shouldn't talk about these things in a meeting.

Ye Zhiyu also knew that he had spoken out of turn, and quickly corrected himself:

"Then the middle-aged female head teacher asked you to call your parents directly?"

"That's not the case." The police officer spoke more smoothly:
"She first came to my office and asked me about the matter. After seeing that I admitted it, she decided to invite the parents."

He seemed to recall the entire incident, and his answers became more and more detailed.

The head teacher is quite reasonable... Yu Dazhang made this comment in his mind.

At least he did not believe the female classmate's one-sided story, and knew to verify the truth of the matter.

Unconsciously, he was also immersed in the incident of the police officer inviting parents.

At this moment, Ye Zhiyu suddenly asked:

"Now back to the original question, what was the name of your primary school teacher?"

"She..." The police officer paused, then replied:
"Chen... her last name is Chen, Teacher Chen. I remember... Teacher Chen Yahong!"

At this moment, everyone in the conference room showed a look of astonishment.

He couldn't remember anything just now.

After being asked a few questions, I actually remembered the full name of my elementary school teacher.

I didn't feel like I was asking a big question. It was just a small thing, why would it have such an effect? !
Those who can become criminal police must be better than ordinary people in logical thinking.

They reacted quickly.

This is giving us an example.

Use practical examples to tell us that human memory can be retrieved.

This is a professional!
"Don't look at me like that. This is just the most basic memory guidance."

Ye Zhiyu seemed to enjoy the feeling of being noticed.

He even deliberately lit a cigarette and took a slow puff.

Finally, under the warning look from Da Zhang, he explained in detail:

“If something is hidden deep in memory, it takes an event associated with it to wake it up.”

"Just like what happened just now, if you can't remember the teacher's name, then look for events related to the teacher."

"Then ask questions to restore the entire incident. Since the teacher was part of the incident, he will naturally remember it."

Is it that simple? Everyone looked at Ye Zhiyu with suspicion.

They wanted to raise questions, but the facts were right in front of them and they had no choice but to believe it.

"Specific situation, specific analysis." Ye Zhiyu added:
"You don't have to learn from me. I just proposed an idea."

This sentence is crucial...Yu Dazhang heard the implicit meaning in his words.

The correct path has been pointed out. Whether you run or walk depends on your personal ability.

In short, this path is the right one.

The meeting room fell silent again.

Yu Dazhang was not in a hurry. He stood up to get a glass of water, drank two sips slowly, and continued to wait for them to ask questions.

This is the first day the task force was established and also the first time tasks were assigned.

So it must be explained clearly in person.

Seeing that someone's cigarette box was empty, Yu Dazhang took out the car keys and handed them to Ye Zhiyu:
"Go get some cigarettes from my car."

"Okay." Ye Zhiyu responded, took the car keys and turned to leave.

When he came back, he had a whole pack of Huazi in his hand.

After unpacking the packages, he gave one package to each group and shared the rest with Ma Jian and his friends.

After a while, the police officer in Team Xu's group spoke up:
"All nine victims of the finger amputation case had homicide marks on their bodies, and they have not been discovered for so many years. This itself is suspicious."

Are you trying to argue... Yu Dazhang looked at him:
"This is not something you should be concerned about. Someone has been assigned to reopen the investigation of those nine cases. We should focus on the severed finger case and get the investigation in the right direction."

In fact, it was a good thing that the police officer brought it up, as Yu Dazhang was just about to remind them.

When investigating complex cases, it is easy to get off track during the investigation, and giving advance warnings can also prevent them from taking detours.

There is another meaning in the police officer's words: these nine wrongful cases are somewhat bizarre.

The fact that he had such an idea showed that he had experienced too few cases. First, he lacked experience.

The second is that I have too little experience.

An experienced detective like Captain Xu would definitely not think so.

The reality is always more cruel than what we see.

Just because you think something is impossible, doesn’t mean it won’t happen.

Let me tell you something interesting.

I believe everyone has watched Luyu's Appointment.

In an episode in 2013, a top domestic criminal investigation expert was a guest, as well as a well-known director.

The director’s surname is Xu, and his full name consists of two characters.

The criminal investigation expert asked Director Xu: "Have you ever killed anyone?"

Director Xu was stunned at the time, and clearly showed emotions such as fear and panic.

Judging from his facial expression, he was probably peeing.

His expression had already betrayed him, and any subsequent explanation seemed pale and powerless.

As I said, there is no perfect crime in this world because perfect crimes are not discovered.

But even if you can fool everyone, you can't fool yourself.

Finally, seeing that no one asked any more questions, Yu Dazhang repeated the direction of the investigation.

After the meeting, the six groups went their separate ways.

Yu Dazhang and three others returned to the office.

As soon as he entered the room, Yu Dazhang closed the door, then looked at Ye Zhiyu and asked:
"What would you do if the police officer just gave the name of the class teacher?"

He thinks there is a chance of this happening.

Many people still keep in touch with their elementary school classmates even when they are middle-aged, so they naturally remember the name of their class teacher.

"Basically impossible."

Ye Zhiyu then asked back:

“Have you ever heard of the 150-person rule?”

Damn it, showing off your knowledge to me again... Yu Dazhang looked at Ma Jian and Xia Bin, trying to seek off-field help.

But the two of them didn't know either, so they could only shake their heads helplessly.

He got it done again.

Yu Dazhang sighed:
"do not know."

Ye Zhiyu, who loves to teach others, looked at him with a smile and explained patiently:
"The human IQ is only enough to remember the names of 150 people."

"Whether in real life or in the media, the number of people whose names I can really remember is no more than 150."

This is the 150 rule... It’s the first time that Yu Dazhang has heard of this.

Regardless of whether it was true or not, he had no way to confirm it. He couldn't just pick up a pen and write down all the names in his mind.

"What does that have to do with the previous question?" Yu Dazhang asked again.

He knew Ye Zhiyu was waiting for him to ask.

Just be a good person and play the supporting role for once.

"Let me calculate it for you."

Ye Zhiyu said seriously:

"The closest core relationship, about five people, is mainly family members."

"There are about 15 close friends, the kind you can turn to for support and help."

“Friends, 50 people, will occasionally contact and interact.”

"The rest are acquaintances, whose names I can remember and who have certain social connections."