Criminal Police Team of Ningzhou Public Security Bureau, lie detector room.

After Chu Ming received the summons from the police, he came to the criminal police team of the Public Security Bureau very obediently to be investigated.

His well-behaved behavior came as a surprise to us, and this is definitely not something a criminal suspect would do. Even the criminal psychology experts were a little surprised, Chu Ming came too quickly.

Chu Ming is still the same as the last time we saw him, with a submissive personality, speaking slowly and carefully. Even when we put on the lie detector for him, he was polite, kept saying thank you to us, and offered to help us wear it.

His humility is engraved in his bones.

is also engraved in his bones, as well as his inferiority.

In this polygraph interrogation, Li Meng followed and participated in the whole process. Now, we continue to use her psychology expertise to help us determine Chu Ming's role in this case.

Whether he is a murderer or not, and whether his well-behaved appearance is pretending to be in the end.

"Your name is Chu Ming?" I asked first.

Chu Ming blinked, looked at me innocently, and nodded.

"Please answer my question." I said to him seriously.

Chu Ming was stunned for a moment, and quickly came back to his senses and replied, "Yes, I am Chu Ming." ”

"Do you know why we summoned you here?" I then asked.

Chu Ming nodded first, then reacted that he should open his mouth to answer our question, and added, "I know." ”

"You know?" I asked with a smile on my face.

"Yes." This time, Chu Ming nodded and answered the question.

I looked at him in some surprise, raised my voice and asked, "Since you know, then tell me why you came." ”

Chu Ming looked at me, his eyes did not dodge or evade at all, and he said in a straight voice: "Because Du Tan and Xu Kuan are dead, you asked me to cooperate with the investigation." ”

Staring at him with a determined gaze, I was a little unnatural, and my eyes unconsciously glanced at the polygraph detector screen next to me.

During the whole process, Li Meng sat behind the detector screen, looking at the various test results on the screen, while staring at Chu Ming's every move seriously, not letting go of any micro-expression changes.

"Where did you buy that blue perfume gift box?" I changed my words, didn't give him any time to react, and suddenly asked.

At this moment, the various indicators displayed on the screen on the detection instrument, including breathing, heartbeat, etc., did not change in the slightest.

Chu Ming asked me lightly: "What perfume, I never use perfume." ”

Li Meng stared at Chu Ming and observed carefully, but his expression did not have the slightest bullying, and there was no change in the micro-expression on his face, cooperating with the use of polygraph instruments.

All kinds of circumstances proved that he really didn't know what this blue perfume gift box was.

After the results of the forensic autopsy, Liu Huiqin died at two o'clock this afternoon. I paused and decided to ask Liu Huiqin about the situation.

So, I asked in a different way: "Where are you at two o'clock this afternoon?" ”

"I'm at home." Chu Ming replied lightly.

"What to do at home? Let's be careful. I immediately asked.

When a person is reminiscing, there will be obvious subconscious micro-expressions, that is, the fluttering of eyes. Some people will focus their eyes on the diagonal bottom when recalling, and some people will focus on the top.

Moreover, when people are recounting their memories, if they are deliberately compiling, there will be pauses and unnatural in their demeanor and tone, and any slight changes will be captured under the monitoring of the polygraph instrument.

But to our surprise, the polygraph still hasn't changed at all.

At one point, I wondered if the polygraph was broken.

Chu Ming's eyes were a little fluttering, and it could be seen that he was really recalling some things.

After a while, he replied, "I should be playing with my phone at home,"

"Haven't you gone to work yet?" I asked casually.

After this question appeared, Li Meng suddenly found through the lie detector that Chu Ming's heartbeat was a little faster, and his breathing rate had changed slightly.

This proves that the polygraph instrument is not broken.

Chu Ming was a person with a particularly low self-esteem, and he was especially afraid that someone would mention his shortcomings. His family is not wealthy, and the data shows that he dropped out of school after graduating from junior high school and does not have a high education.

So he's been doing odd jobs as a waiter in a restaurant. This is what makes him feel particularly inferior all the time, and when I ask him if he is at work, his heart beats faster.

"I didn't go to work, I plan to go back to work in a week." Chu Ming muttered.

"Oh?" I asked him with a smile and asked, "Why a week?" ”

Chu Ming's eyes had a more obvious drift, and he would even subconsciously avoid our gaze.

"Because I've been a little tired lately." Chu Ming let out a very faint sound.

At this time, the polygraph had a more obvious reaction, and the data on the screen showed that Chu Ming was lying.

I cleared my throat and said solemnly: "Chu Ming, you don't have any luck mentality, now that the polygraph instrument is here, you'd better tell me the truth." ”

Chu Ming's face was very ugly, he hesitated for a moment, and said with some embarrassment: "Because...... Because the reunion has just ended, many of my classmates have not yet returned home, and I am afraid that they will see me as a waiter in the hotel......"

After this reason was spoken, Chu Ming's heartbeat and breathing returned to normal.

It seems that this is his most fundamental reason, and it is also determined by his inferior character.

"Why did you kill?" After Chu Ming's mood calmed down, I stopped chatting with him, and still asked questions related to the case.

"Murder?" Chu Ming was stunned.

I looked at him with a serious look on my face and continued, "How many people did you kill? ”

"I didn't kill anyone!" Chu Ming's eyes widened and he looked at me in a daze.

The lie detector showed that his heartbeat was a little faster due to tension, but it was within the normal range, which belonged to Chu Ming's normal reaction.

"Where does the pollen come from?" I didn't give him any chance to react and continued to ask.

"What pollen? I don't know anything! Chu Ming tried his best to argue, and after a while, he asked us tentatively: "You don't think I'm killing someone, do you?!" ”

"Or else? You killed four people, shouldn't you tell us about it? I asked him with a smile.

"When did I kill four people?!" Chu Ming's face was very pale.

"And how many did you kill?!" I made a very dignified voice.

"I ...... I'm ......," Chu Ming stammered.