In every school, the most popular students are the most fond of lying, because they need to use all kinds of lies to continue to increase their identity, which has been proven by many cases. In general, such students include those who are good at studying, have excellent athletic performance, or have very good talents. At Neijiashan Middle School, many students do well in their studies, which increases the likelihood that they will lie.

Aside from professional training, the jury is still out on the best liars in the world, but if one is added, students are definitely among them. So, I know very well that my first judgment is that they didn't lie, but that doesn't mean they didn't hide it. Without a professional polygraph, I needed to do my own experiments.

Tracing back to the history of human polygraphing, the Indians invented the "rice grain polygraph" as early as 2,000 years ago. The subject will be given a grain of rice to the subject of suspicion and chewed in his mouth. If he can spit out the grains of rice after answering the question, it means that he is telling the truth. If you can't spit it out, you're naturally telling a lie. This method uses the principle that when a person is nervous, the throat will become dry.

And the bag of things I have prepared for the four girls here, including the homeroom teacher, Mr. Liu, is just popcorn.

"I want the five of you to put a popcorn in your mouth and answer my question together. Hope you guys enjoy this game. ”

I know they don't understand, but the curiosity of the students makes them happy to play this game with me, except for Mr. Liu, of course. But I insisted again and again, and she had to put this popcorn in her mouth under the gaze of the students.

Actually, I've already asked them the question I want before, but now, I need to ask it from a different angle.

"You all said that when you were in the wonton shop, you were still with Cao Tianfang, but when you came out, you disappeared. Since Cao Fang finished eating wontons, does anyone remember what else she did? ”

I stepped back with my arms in my arms and looked at the five people in front of me, they were now holding popcorn in their mouths, and once there was a cover-up, they would inevitably secrete saliva and form swallowing, and the popcorn would probably be swallowed. The more silent they are, the more they do have something to hide.

Grunting, I could clearly hear the first swallow.

"Shen Qing, what's wrong?" I suddenly asked, "Do you remember anything?" ”

"I、。。 I. Gollum, again, the saliva was swallowed, and even because of the unnatural swallowing, Shen Qing began to cough, and her cough made the others overly nervous.

Coughing, swallowing, for a while, I could find that the four girls who didn't show lying expressions just now really panicked collectively. That's proof, and I guessed correctly, what they're hiding.

"Actually, this game just wants to show us that when a person can't control their saliva, she can't control her mouth naturally. Obviously, because of your nervousness, saliva will spread in your mouth, so can you tell me what you are nervous about now? ”

I looked at Teacher Liu, and the audience, as if she was the only one who seemed calm, but she was also surprised, I used this method to embarrass the four girls.

It's just that now it has indeed played a key effect, Teacher Liu's forced gaze, coupled with my aggressive words, the psychological defense of the four girls is collapsing.

"Tell me, what are you hiding?" Teacher Liu directly squirted out the popcorn in his mouth and said excitedly, "Why don't you tell the truth to the police?" ”

The prisoner's dilemma in disguise made the four of them show embarrassing flaws at the same time, making them look at each other's embarrassment, increasing the devastating psychological defense

"Teacher, we're not lying." Shen Qing was frightened and finally spoke, "We came out of the wonton shop, and Cao Tianfang was indeed with us." But later, after shopping, she suddenly disappeared. This is not a lie. ”

"Then you must have concealed how she disappeared, or you actually knew how she disappeared, but because you were afraid of being responsible, you didn't want to say it when others didn't ask you."

After I said this, the four girls nodded at the same time. One of the girls sobbed: "We are afraid that the police will investigate us, because, because 。。。。。。 ”

"You say that Cao Tianfang was definitely not kidnapped because of you, and I believe that we are assisting the police in the investigation, so you have to tell the truth." This time, I can confidently say the words "assist the police".

And the four of them, after looking at each other, finally began to loosen.

Shen Qing hesitated for a moment and whispered, "We didn't lie, Cao Tianfang did suddenly disappear on the road." We didn't see how she disappeared, but。。。。。 But..... I think someone might have taken her away. ”

"Who is it?"

"Actually, here's the thing, Cao Tianfang robbed Wang Xiaoyu's boyfriend, so Wang Xiaoyu had already said that he would find someone to repair Cao Tianfang. And when he said this, we all heard it. That day, the five of us went out to buy food and go shopping, in fact, Wang Xiaoyu began to point fingers at school. We had a premonition that something was wrong, so when we walked in front and returned to the school to find that Cao Tianfang was missing, we all thought that it was Cao Tianfang who Wang Xiaoyu had found someone to kidnap. Because Wang Xiaoyu knew many people in the vicinity, we didn't dare to say more, so we all went back to the dormitory directly. It wasn't until we later said that Cao Tianfang was missing, and we didn't dare to admit it, for fear that we would get into trouble. We talked to each other that day, because we hadn't seen how Cao Tianfang disappeared, so we naturally insisted that we didn't know. ”

No need to ask, no need for me to remind you, Teacher Liu has quickly gotten up from her seat and walked towards the girls' dormitory.

A major information point finally appeared, but my intuition told me that Wang Xiaoyu should not be the real culprit in the end. Because no matter how bold a female student is, it is impossible for her to kidnap her classmates and still spend so many days under the noses of the police.

Following the scolding that could be heard far away, I finally saw a fashionably dressed girl walk in. And the other four girls immediately avoided her gaze, this person was Wang Xiaoyu. Moreover, I am sure that she is in school and should belong to the big sister.

And Cao Tianfang dared to rob the eldest sister's boyfriend, and the sister paper was not simple.

I motioned for Teacher Liu to leave with the four students, leaving Wang Xiaoyu alone to face me.

"Without going around the bush, I said it directly. They have already confessed that on the day of Cao Tianfang's disappearance, you said that you would find someone to kidnap her. But I believe that her disappearance has nothing to do with you, so you don't have to pretend that it doesn't matter. I sighed and motioned for Wang Xiaoyu's arm to relax.

The duration of the adolescent rebellious period is not the same, and there are many examples of excessive release and prolongation because of the repression of the personality caused by semi-closure, Wang Xiaoyu is of this type. She's pretending to be good now, and she doesn't care. However, her somewhat stiff limbs undoubtedly betrayed the tension in her heart.

She also swallowed her saliva, indicating that she wanted to cover up, but I didn't need her to cover up: "You just have to tell me who you let take her away." Didn't it work out in the end? ”

I led her to say what she wanted to say.

In fact, some words are not difficult to speak, just because she resists, after all, she is still a student, and her courage cannot be too rebellious.

Finally, after Wang Xiaoyu hesitated, he continued to say in a pretended calm tone: "I was joking with Cao Tianfang. It's also to prevent those people from thinking that I can't cure Cao Tianfang. I just asked the people at the corner of the street to scare Cao Tianfang. Later, I heard from them that they had indeed pulled Cao Tianfang aside from the street, and were just about to scare him, when a masked man came out with a knife and motioned for them to get out of here. Those people didn't confiscate any benefits from me, and they didn't want to make a big fuss, so they scolded a couple of words and left. I was afraid that the police would convict me, so I didn't say anything. I really don't know where Cao Tianfang went. ”

Biting her lip and her face asymmetrical, this is a typical manifestation of anxiety, Wang Xiaoyu said on the surface that she was not afraid, but she obviously cared about whether I believed her answer.

And of course I believe her answer, because from the very beginning, I judged that Wang Xiaoyu could not be the mastermind of Cao Tianfang's disappearance.

"Tell me the names of those people, and you can rest assured that the police will not frame you for no reason."

From pretending to be calm but anxious before, now, Wang Xiaochen is finally a little moved, I saw her body trembling, wiped her cheeks with the back of her hand and said, "You said that Cao Tianfang really won't have an accident." The first missing girl is dead, so she's 。。。。。 ”

I actually didn't know how to answer, because, I could see that she was really worried about Cao Tianfang, but she was just 。。。。。

According to relevant statistics, the average girl is deliberately kidnapped and killed within 24 hours. The remaining half of them were killed within 72 hours, and the rest 。。。。。。 The data shows that the more time passes, the little hope of being rescued!

Where the hell is Cao Tianfang, or what is even more terrifying, where her body may be. Although I don't want to believe this fact, I must be mentally prepared for it.

After Wang Xiaoyu went back to rest assured, I immediately met with Tang Sen, who had already come out, he was observing Lou Xing's class, because Lou Xing had been confirmed to be killed, so when someone went to observe, those students were even more nervous, but Tang Sen had no clues for the time being, after all, Lou Xing was dead, and there was less and less hidden information to be obtained.

I went with him to find the young man at the corner of the street. It's almost eleven o'clock now. The small street is already very quiet. Everything here seems to be prepared for Neijiashan Middle School, so at night, they will not disturb the rest of the students too much, and the young people here will not have entertainment activities at night, and playing cards seems to have become their only pastime.

By the time Townsend and I found the four young men, they were all shirtless, and after a shout, they were out of their cards, and of course, they saw us coming.

"Look, we have proof." I have never been so, Tang Sen and I took out the documents prepared by the police directly from our pockets, this time, but we are really ordered to investigate the case, who dares to make a mistake!