Criminal Psychology

"Mr. Lin, I will ask you some questions below, please answer truthfully."

"Ah."

"Is your name Lin Chen?"

"Yes."

"Are you from Fengchun?"

"Yes."

"Are you willing to answer my questions truthfully about this polygraph investigation?"

"willing."

Lin Chen was sitting in the interrogation room, with several clamps on his index finger and ring finger, a blood pressure monitor wrapped around his arm, and some wires connecting his chest to the screen on the desktop.

Parameters such as his heartbeat, respiration, blood pressure, skin electricity, etc., are gathered into complex lines on the screen, and slowly move forward.

Opposite him was a staff member of the Inspector's Office, but of course it was not Inspector Huang himself.

After the "Candy Thief" case, for some unknown reason, Lin Chen had never seen Huang Ze again, and for some unknown reason, Huang Ze actually sent someone to go through the police consultant approval procedures for him, of course Before that, he still had to clarify some unaccounted things.

Passing a polygraph test is, of course, part of the confession process.

The polygrapher opposite him looked away from the data monitoring screen, and the man focused his eyes slightly. After finishing the non-threatening neutral questions, of course he wanted to get to the point.

"During the process of handling the case, have you ever used your power to help criminals?"

"No."

"During the process of assisting the police in the 9.10 serial murder case, did you intend to help the suspect Feng Peilin jump into the river and escape?"

"No."

The data line on the screen began to fluctuate. The lie detector quickly scanned the screen, and then looked back with a little disappointment: "What happened after you fell into the river with Feng Peilin? Is Feng Peilin alive or dead?"

"After falling into the river with Feng Peilin, we were scattered by the river. I don't know if he is still alive." Lin Chen held the glass, the water was very hot, and a thin layer of tea floated on the surface of the water, and he stared at the spinning tea stem He replied lightly.

"According to what you said, since you have nothing to do, why didn't you return to the team and report the situation before leaving, but sneaked away without calling anyone?"

Hearing this question, Lin Chen raised his eyes slightly, as if he was looking at the lie detector's face, and at the clear one-way glass behind him.

"Since Feng Peilin's target has always been me, I'm afraid that showing up again will cause unnecessary trouble to the police." He paused, and then continued: "Besides, some very powerful people are always looking for trouble for me. I also want to feign death to avoid these troubles." His breathing was steady and his voice was very calm, because he sounded very calm.

Even if you don't look at those complicated lines, just judging from his tone or attitude, anyone who hears this sentence will feel that there is no problem with such a reason, but it is just that there is no problem.

Xing Conglian stood outside the one-way glass. He had his hands in his pockets and was wearing a standard police uniform. Unlike Inspector Huang, who always dressed meticulously, the corners of his clothes were a little wrinkled, and the first button was not buttoned up. Therefore, he looks very casual, but it may be because his eye sockets are too deep or the color of his eyes is greenish. There is a serene and deep meaning in his eyes gazing at the interrogation room that does not match the sloppy image.

However, such tranquility and deep meaning only lasted for a short time. After hearing that very reasonable answer, the corners of his mouth were slightly raised in order to maintain seriousness, and the dark green eyes were rippling. Then he smiled and looked at the lie detector on the table.

Well, all indicators are stable, so his smile is getting deeper and deeper.

The lie detector turned over a page and suddenly asked, "Have you ever been in a relationship?"

Even Lin Chen was a little surprised by such a question: "Huh?"

"Answer the question." The lie detector cleared his throat and said seriously.

"No."

"Have you never liked anyone?" He couldn't help asking as if he thought this answer was too strange.

"No."

At this moment, the various data on the monitoring screen finally showed fluctuations visible to the naked eye, and the person who answered the question quickly realized that he had lied about this question.

Lin Chen frowned slightly, as if he didn't expect that he would have a problem with this answer.

But in the end, what went wrong?

Although the testee started to struggle, the lie detector quickly turned over this chapter. After all, who doesn't have some privacy?

The polygrapher continued to return to the topic: "So, according to the file, in the case of the candy robber, you appeared on the hijacked bus by accident, right?"

"Yes."

"Where are you going by car?"

"Go travel."

"It's a coincidence..."

At this moment, Lin Chen finally couldn't help but let go of the teacup and said, "Sorry, please allow me to interrupt you."

"what happened?"

"I just listened to these questions you asked, and I think the lie detection program you use should be the CQT standard question lie detection method..."

The lie detector turned to the first page of the document and looked at it, feeling a little embarrassed.

"The standard question polygraph method is divided into four parts, neutral questions, standard questions, related questions, and off-topic questions. For example, asking names and ages are all neutral questions. The role of neutral questions is to establish normal response levels. Therefore, in the process of asking questions, please try to let the subjects answer a 'yes' question and a 'no' question, otherwise there will be problems with the baseline setting.

The polygrapher closed the file and listened helplessly.

"At the same time, when you ask questions about the case, try to write the pattern of the question in such a way that the testee can answer no or no. The two questions you asked at the beginning are very good, but later it becomes There is a difference between an interrogation, an interrogation and a polygraph after all."

The polygrapher opened his mouth and found himself speechless.

But Lin Chen obviously didn't finish his sentence. He continued: "Actually, in a set of CQT lie detection questions, it is best to only involve one question and one aspect, and to determine whether the subject is lying or not by asking repeatedly. , so the case about the candy robber is another matter, you'd better put it in the next set of questions and ask me again."

Lin Chen's counterattack was quick and merciless.

Xing Conglian almost burst out laughing. It's really cute how some people get annoyed because they answered wrong questions.

"Mr. Lin, I understand." The lie detector sighed and stood up. He removed the wires stuck to Lin Chen's body, "If you lie sincerely, the instrument will not be able to detect it."

"..."

"This is just a routine, you answer me a few more questions, and we'll call it a day."

"Please ask."

"I read the dossier of 'Candy Thief'. As a temporary negotiator, you made great contributions in persuading Fang Aizi, but at the same time, you were also one of the few people who came into contact with Yang Dianfeng. After that, The police car Yang Dianfeng was riding in was fitted with a suction cup bomb, under the circumstances at that time, do you think Yang Dianfeng would have time to pass information about his arrest to the criminals?"

"Impossible. He didn't have any chance to access a series of communication tools such as mobile phones at that time, and Yang Dianfeng knew very well that once he was arrested, seeking asylum from the police was the only way out."

"Because the criminals reacted very quickly at that time, since it was not the criminals notified by Yang Dianfeng himself, can I make an inference that among all the people on the scene, someone passed the information directly to the criminals, which led to the criminals being able to quickly Respond, kill and silence."

"I don't rule out this possibility, but in fact, I can also think that Yang Dianfeng himself is closely monitored by criminal organizations. Once he has problems, he will be quickly silenced."

"Please answer my question directly, and answer whether I can make this inference." The polygrapher suddenly interrupted his words and asked very seriously.

"Yes." Lin Chen was silent for a moment before replying.

"Continuing the question just now, you are an expert who has received the most professional and systematic psychological training at the scene of the crime, so did you notice any abnormalities in anyone at the time, and among all the people, who do you suspect is most likely to pass this information to Criminals?"

Hearing this question, Lin Chen suddenly raised his head.

The two questions in this sentence are really full of the style of the Inspector's Office, full of conspiracy and traps, and it is even very possible that these few questions themselves were drafted by Inspector Huang himself.

Originally, the existence of the Inspector’s Office was to supervise whether the police officers exercised their powers correctly and appropriately in the process of handling cases. Since the Inspector’s Office suspected that someone inside the police had leaked secrets, of course it had to start an investigation, but the inference based on possibility had to draw certainty As a result, it is a bit embarrassing to use such naked questions to encourage reports and exposes.

"I have indeed received professional psychological training, but I am not a professional facial expression recognition expert, and even the most professional facial expression recognition expert needs careful observation and conversation to find abnormal problems. You ask me, in my face Aizi, the other party, when all the police officers are hidden in the reeds, if I have found out that there are people with evil intentions at the scene, then I can only answer you, I don’t have the ability to discover this problem.”

……

The review process is always long and complicated.

When Lin Chen walked out of the gate of the police force, it was already dark. In the early spring night, the wind was as soft as the starry sky.

Xing Conglian leaned against the stone pillar at the door and was smoking a cigarette. When he saw Lin Chen, he stood up slowly: "Is everything going well?"

Lin Chen shook his head, and handed over the result he just got.

Xing Conglian's face darkened, he bit his cigarette butt and quickly opened the report, his eyes fell on the last line of the report.

The words "approved" are clearly written on it.

The company commander Xing Cong couldn't help but put his hand on Lin Chen's head and rubbed it: "Hey, didn't this pass, why are you still shaking your head?"

"Didn't you ask me if I was going well?"

"It's all passed, isn't it called smooth?"

"I just think it's so strange that Huang Ze would suddenly let me pass the consultant's review."

Looking at Lin Chen's slightly worried face, Xing Conglian showed a meaningful smile: "What if conscience finds out?"

He took a drag on his cigarette and asked with a smile.