Thanks to "Boult", "Mrsariel" and "Supreme Treasure" for their comments.

……………………………………………………………………………

After Shin Donghae and the others left, the office was quiet again.

Kim Yoon-ho reclined in a chair and sat in front of the computer, watching the videos that Shin Dong-hae had brought back.

Didn't lie, didn't lie, still didn't lie.

Most of the dozen or so people investigated by Shin Donghae and Yin Guohong had a positive attitude towards whether Jintai Village had reformed itself, and when they spoke, they did not show any lying.

"Smack."

Kim Yoon-ho reimbursed a pen again, but he didn't notice it.

It seems that this Jintai Village has really reformed itself.

Kim Yoon-ho once again strengthened this idea.

Although it may seem like a fantasy to judge whether a person is lying by watching a video, it is actually based on science.

Dr. Paul Aikman, 74, is an American psychologist who specializes in facial expression, emotion and interpersonal deception. In 1991, he received the Outstanding Scientific Contribution Award from the American Psychological Association for his outstanding contributions to this research.

Dr. Paul's research has been named micro-expressions, and the discipline mainly studies and summarizes how to judge whether a speaker is lying by observing the expressions and movements of the speaker.

When Kim Yun-ho was studying in the United States, he was fortunate to study this micro-expression with Dr. Paul and benefited greatly. He also worked with Dr. Paul to give lectures to FBI agents in the United States and helped the FBI solve complex cases.

At the beginning, the United States also invited him to become an American citizen and stay in the United States to work, but Kim Yunhao did not agree. Because he was in a hurry to return to South Korea and become a South Korean prosecutor.

Although he did not stay in the United States, Kim Yunhao has always maintained communication with Dr. Paul, and his understanding of micro-expressions has deepened day by day.

Although Kim Yun-ho does not have as deep an understanding of micro-expression as Dr. Paul, and is not as good as several other fellow brothers, he has no problem at all.

Through on-site observation and watching the footage afterwards, he is still very sure of whether a person is lying or not.

Through his observation at noon and watching the footage in the afternoon, Kim Yun-ho discovered:

Although Jintaicun is a very smart person and has strong self-control, his subconscious movements and expressions are beyond his control.

Kim Yoon-ho asked Shin Dong-hae to deliberately eat in front of Kim Tae Village, showing disrespect, just to test Kim Tae Village's self-control and see if he could really control his emotions.

However, the results showed that Jintaicun still subconsciously showed disgust and dissatisfaction at that time.

Although Jin Taicun has brains and a city government, he has not yet reached the height of a psychology master, and can control most of his emotions and act for others to see.

Therefore, Kim Yun-ho concluded that Kim Tae-chon had really reformed itself.

However, Kim Yunhao did not show this method to outsiders, nor did he say it to Shin Donghae in depth.

The things he had revealed to Shen Donghai before were completely the surface of micro-expressions, and they were very similar to the knowledge of criminal psychology, which made Shen Donghai mistakenly think that this was criminal psychology.

Except for his mother and sister, Kim Yoon-ho has never trusted anyone, including Shin Dong-hae, who gradually became friends. Never!

Therefore, including Shin Donghae, outsiders don't know that Kim Yunhao still has this means to solve the case.

Although South Korea is still ignorant of micro-expressions, although they know that it is a new discipline, most people think that it is a branch of criminal psychology and that it is of little practical use.

Therefore, no one pays attention to Kim Yunhao's resume, and no one values Kim Yunhao's ability.

This situation is in line with Kim Yunhao's original intention, and he also uses the micro-expression he has mastered as one of his hole cards.

"Hopefully, when I play this hole card, I'll surprise you."

Kim Yunhao held a pen in his right hand, pinned his thumb to the top of the pen, and with a force, there was a 'snap', and another one was reimbursed.

Playing with the pen as a kerosene lighter, Kim Yunhao doesn't know how many of them have been broken, and he doesn't care.

After making a judgment in his heart, he hurried to write another report, and when it was finished, he left for home.

At this time, it was already 10 o'clock in the evening.

――

After returning to the apartment, Kim Yoon-ho stopped at the door.

Through the crack in the door, a light spilled out.

There are thieves?

Just kidding, although this is not the highest level of apartment, it is not affordable for ordinary people. Security is very good and there are no thieves at all.

Who would that be?

There are only two sets of keys to the apartment here, one for Kim Yun-ho and the other for Zheng Daiqin.

Is it Mom?

"Smack."

Kim Yoon-ho stood at the door, carefully pushing the door open. Sure enough, it was Zheng Daiqin.

At this time, Zheng Daiqin was kneeling on the ground, wiping the ground with a rag.

"Mom, why are you here?" Kim Yunhao threw off his shoes, walked into the house quickly, helped Zheng Daiqin up, and asked with concern.

"Oh Mo, our family Yunhao is off work. Hehe, Prosecutor Kim, you've worked hard. As she spoke, Zheng Daiqin looked at Kim Yunhao with a smile on her face and happily joked with Kim Yunhao.

"Mom, who did you learn this from, and you actually made such a joke with your son." Jin Yunhao spoke, and at the same time snatched the rag from Zheng Daiqin's hand:

"Don't clean up, it's cold on the ground, and it's not good to clean up on your knees on the ground. You can leave it here, and I'll clean it up after myself. ”

"Hey Yigu, you are a big man, what housework to clean up, of course women do it." Zheng Daiqin tried to snatch the rag, but failed, and complained instead:

"I'm not talking about you, you're almost 26 years old in a blink of an eye, and you should think about your marriage. Otherwise, if you are out alone, your mother will not be at ease. You see, let's just talk about this business, I don't come, no one will do it for you. ”

Jin Yunhao shook his head and smiled bitterly, such an old man loves to force his children to marry so much: "Mom, I'm not busy with work." No, I just got a task again as soon as I got to work, how can I have time to fall in love. ”

Hearing Jin Yunhao's explanation, Zheng Daiqin thought about it sideways: "Hey, too, I just joined the work, and I should work hard." Besides, there is a lot of work for prosecutors, and I can understand that. Or, I'll help you find it again and arrange a blind date for you? ”

Seeing that Zheng Daiqin was still not giving up, Jin Yunhao's head was bigger than two: "Mom... You can rest assured, after this new employment period, I will try to find you a daughter-in-law. ”

There is no way, Kim Yunhao is worth using the word trick.

"Good... That's what you said. Zheng Daiqin's eyes narrowed with joy.

She really wants to hurry up and see what kind of daughter-in-law her such an excellent son will find in the future.

……………………………………………………………………………………

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