"Is it because the accuracy rate is not high that this science is not popularized and accepted?"

Qiao Zhen explained: "This is just one of the reasons. Micro-expression interpretation is not well understood by non-specialists, and even a professionally trained person has only about 50% success rate in micro-expression polygraphy for strangers. ”

Shi Yan exclaimed: "Such a low probability?!" ”

Qiao Zhen nodded: "For example, one person's hands crossing may just be a habitual behavior of closing oneself, while another person doing the same action is a manifestation of lying." The success rate only depends on how familiar you are with the other person. ”

In other words, if Qiao Zhen hadn't studied Hong Wei's daily behavior, then all of today's judgments would be just castles in the air, with no basis or accuracy at all, and even a high success rate of blind guessing. That's why, she studied criminal psychology and ended up in trace analysis, and the probability of lying about physical evidence is far less than that of intelligent humans.

She flipped through Hong Wei's family photo album and watched the videos of Hong Wei appearing a few times, and decided to do her best and challenge herself. At the same time, I silently prayed in my heart that Shi Yan in front of me would make new discoveries when there was plenty of time this time, and other colleagues would be able to find Hong Wei's traces in the surveillance video of the equipment market.

Qiao Raogang's interrogation style was not as short and fast as Qiao Zhen had imagined, not only was it not particularly harsh, but on the contrary, it was somewhat pleasant.

Qiao Raogang asked, "What year did you and your wife meet?" ”

The other party was stunned, recalled and said: "1990." ”

He then asked, "What was scheduled on the first date, do you remember?" What was your impression of each other at the time? ”

Hong Wei was a little impatient: "Dating is nothing more than eating, shopping, and watching movies." When she was young, she didn't have any judgment, she felt that the other party was beautiful, and she was willing to be with her, so she thought she liked her, and of course her impression was good. ”

"Do you remember what your daughter looked like when she was born?"

Hong Wei's eyes softened a lot at once, and he just nodded slightly.

Qiao Raogang's question was not painful or itchy, and Qiao Zhen was secretly happy.

He knew that what his father did was more dependent on his past successes, but it was a coincidence......

Shi Yan leaned over and asked in a low voice, "Did Team Qiao accept your true biography?" ”

Qiao Zhen smiled and responded in a low voice: "You don't know my dad's personality yet, how can you listen to me, only I listen to him." But it was a coincidence. ”

"Where did it happen that it fits your theory?" Shi Yan asked curiously. She has a fanatical and persistent love for all things that is based on science.

"Not really. This type of questioning happens to be the psychological benchmark for establishing interrogation from the perspective of criminal psychology, that is, at the beginning of the conversation, through the suspect's verbal and non-verbal responses, to establish a baseline response before the real pressure is applied. ”

"Why don't I see what benchmarks have been determined?" Shi Yan looked through Qiao Zhen's notes, but she couldn't understand them at all.

"The method of benchmarking involves asking the suspect a variety of questions that allow him to use different parts of his brain. You see, my dad's first question needs to be recalled, the second question not only needs to be recalled but also needs to be considered, and the third open-ended question is creative. To answer these three questions, Hong Wei actually needs to use different parts of the brain. ”

Shi Yan was still thinking seriously. Qiao Zhen hurriedly recorded and explained at a faster pace: "When ordinary people recall some things, the brain stimulates the memory central nervous system, and most of the eyes move to the right. When he thinks about something, his cognitive central nervous system is active, and the external manifestation is that his eyes move up or to the left. Hong Wei's reaction is no different from that of ordinary people, and his eye movements can be used as a reference point. ”

In the interrogation room, the rhythm of relaxation quickly made the other party relax some vigilance, and the tense body sitting upright relaxed. Qiao Rao Gang "inadvertently" touched on a key issue - leaving blood stains.

As expected, Hong Wei quibbled: "This is likely to be left by their mother and daughter during their menstrual vacation, I have always said that their living habits are poor, I have a slight cleanliness habit, and it is too late to clean up behind." ”

Assisting in the investigation and being questioned before and after the formal interrogation, even though Hong Wei is currently sitting in the interrogation room with handcuffs, the inflated luck can still be felt through the door. The arrogant attitude made some of the investigators outside the door knock on their desks in annoyance and feel angry.

Seeing this, Lao Qiao quickly changed the topic, and continued to chat with him calmly: "At present, there are several possible situations for your wife, I think you should also know. First, it's the elopement you said, but you and I don't know who the specific object is. Second, according to our experience, she should have been killed, and as for who the murderer is, it will soon be revealed, and we will give an explanation to the family. ”

When Hong Wei heard the talk of his wife, his expression of disgust and contempt showed from time to time, without the slightest concern and no questions.

Qiao Raogang continued: "If it involves the murder of your wife, what is the length of sentencing, whether your family has purchased personal injury accident insurance, and the children's future education plans, have you considered these questions?" ”

I had been referring to "her" and "that woman" before, but at this time, I simply leaned back, closed my eyes slightly, recuperated, and was silent.

If it weren't for the damage to the facial nerves or muscles, the inadvertent slight twitch at the corner of Hong Wei's mouth could only betray his extreme tension and the terrible relationship between husband and wife.

The interrogation reached a brief stalemate, and Old Joe did not move, probably thinking about how to adjust his strategy.

Da Hu, who had not spoken all the time next to him, couldn't hold it back, and suddenly opened his mouth to play the family card: "Hong Wei, have you ever thought about it, if something happens to you, your old mother, and two elder brothers, what should you do, your family is the one who cares about you the most at this time." ”

Qiao Zhen put down his notebook and stood up: "It's broken, it's broken now." ”

Shi Yan asked in surprise: "What's wrong, what's wrong?" ”

"Hong Wei has a good relationship with his mother, but his relationship with his eldest brother and second brother is very delicate. The eldest brother is too good, his mother is the most preferred, and the second brother will play tricks, two years ago, his mother's old house was demolished, and he was forced to divide two-thirds of the real estate. It won't be long before he's pulling away from the pain and reverting to a defensive attitude. This is tantamount to strengthening his psychological defense, but only increases the difficulty of interrogation. ”

Sure enough, Hong Wei rubbed his gradually moist eyes, froze, and suddenly became expressionless, his face was pale.

Qiao Zhen didn't wait for everyone to react, picked up a pile of documents, took a piece of brown paper with the words "case file" written on it, put it out, and knocked on the door and entered the interrogation room.