Before, Zhao Yu had read the instruction manual of the lie detector carefully. www.biquge.info It turns out that although this lie detector is accurate, it can only make judgments on questions that point to a clear point. That's why he asked Liu Pengfei to answer only a simple "yes" or "no".

When Zhao Yu turned on the switch of the stealth polygraph, a simple picture immediately appeared in his mind: a red light, a green light, and a 10-minute countdown in the upper right corner, the whole picture layout is like a kindergarten stick figure.

Watching the time pass little by little, Zhao Yu seized the time to start his own question.

Since it was the first time to use it, Zhao Yu had no experience, so he asked the simplest question as soon as he opened his mouth: "Are you a man?"

"Yes!"

Although he looked puzzled, Liu Pengfei still cooperated to say the answer.

As a result, the green light in Zhao Yu's mind flickered.

Oh......

It seems that the green light should represent the truth.

"Are you a woman?" Zhao Yu asked again in order to verify the accuracy.

"It's not!"

The green light flashes.

"That ......" Zhao Yu wanted to verify the effect of lying, and hurriedly discussed with Liu Pengfei, "Dude, let me ask you again, this time you said yes, okay?"

Zhao Yu's words made the onlookers puzzled the second monk.

"Are you transsexual?" Zhao Yu opened his mouth to ask, and immediately snorted at Liu Pengfei, and whispered to him, "Say 'yes', hurry up!"

"Hmm......" Liu Pengfei's head was sweating, and he nodded slightly and replied, "Yes!"

As a result, the red light not only turned on, but also beeped!

Yo Xi ......

Zhao Yu sighed in his heart, it seems that there is really nothing wrong with this lie detector!

"Okay, the test is over, next, let's officially start!" Zhao Yu signaled to Liu Pengfei, "You don't need to tell the truth, just answer yes or no, and answer quickly, do you understand?"

"Ahh

Miao Ying and the police detectives were also puzzled, how could they tell the criminal not to tell the truth? I really don't understand, what exactly does he want to do?

"Hurry up!" Zhao Yu watched the time gradually decrease, and hurriedly asked, "Is your name Liu Pengfei?"

"Yes!"

Green light.

"Are you from Muguantun in SL County?"

"Yes!"

Green light.

"Do you love rice cakes?"

"It's not!"

Green light.

"Your parents are divorced?"

"It's not!"

Green light.

"Have you had hemorrhoid surgery?"

"Did a young lady say that you can't do that......"

......

Zhao Yu asked more than a dozen innocuous but painful questions in one go. Although Liu Pengfei couldn't figure out why Zhao Yu asked such a question, he answered them truthfully one by one.

However, what he didn't notice was that under Zhao Yu's guidance, his speed of answering questions was getting faster and faster!

Who knows, Zhao Yu asked and asked, and suddenly the conversation changed and asked quickly:

"Do you know Yu Zhigen?"

At first glance, when he heard the words "Yu Zhigen", Liu Pengfei was obviously stunned for a moment, and did not answer immediately.

Zhao Yu had been waiting for his reaction for a long time, and at that time, even if he didn't need a lie detector, he also knew seventy or eighty percent. It seems that this Liu Pengfei really knows Yu Zhigen!

"Yes!" After a pause of three seconds, Liu Pengfei finally said the answer, but he also realized his timidity, so he looked very nervous.

Green light.

"I was a fellow villager with him, and we played together when we were kids......," Liu Pengfei began to explain. However, the more he explained, the more problematic it became.

"I said, you only need to answer yes or no, and you don't need to say anything else!" Zhao Yu reminded him, this time, Liu Pengfei was even more weak-hearted, and his head was already sweating.

At this moment, Miao Ying, who was monitoring in another room, was also very surprised. Although she didn't know who Yu Zhigen was, she already instinctively felt that there was a lot of article in it.

In addition, she was also very curious about Zhao Yu's novel and peculiar interrogation method. This Zhao Yu ...... What is the origin?

"Do you know Lin Meifeng?" Zhao Yu continued.

This time, Liu Pengfei paused again, and then replied: "No!"

Honk...... The lie detector went off and the red light came on.

Because of the photos as evidence, Zhao Yu had long known that there would be such a result, and Liu Pengfei definitely knew Lin Meifeng.

"10 years ago, did you ever go to the Fumin community?" Zhao Yu continued to dig deeper.

After hearing the words "Fumin Community", Liu Pengfei suddenly realized something, and immediately looked at Zhao Yu with wide eyes, revealing great shock and fear.

"What are you looking at, hurry up and answer!"

Under Zhao Yu's heavy drinking, Liu Pengfei quickly shook his head and replied: "No!"

Honk...... The red light is on.

Depend on...... Although he only asked such a few simple questions, Zhao Yu was shocked by the whole person, and I was obedient...... Could it be ...... The truth about the murder - just around the corner!?

Zhao Yu pondered for a moment, and then ran directly to the topic:

"Do you know about the murder case in the Fumin community 10 years ago?"

"Hmm...... Yes!" Liu Pengfei nodded, and wanted to add, "I just heard about it," but before his mouth opened, Zhao Yu had already asked loudly:

"Say!Yu Zhigen, isn't it-you killed!?"

"No, no, no!?" Liu Pengfei's face turned pale with fright, and he shouted three nos in a row.

However, you can't go wrong with the results of a lie detector!

Honk...... The red light is on!

Wow!

Granny bear......

Zhao Yu's eyes widened suddenly, and he felt a little trance. In fact, although he doubted Liu Pengfei in front of him, he only thought that he could get clues about the murder case from him, but who knows...... The real murderer who disappeared for 10 years...... It's right in front of you!!

The surprise came too suddenly, so Zhao Yu didn't prepare at all. He was silent for a long time, and then he remembered that the time for the lie detector was almost up.

So, he forcibly suppressed his shock and continued to ask: "Liu Pengfei, was it raining heavily on the day you killed Yu Zhigen?"

"No!" Liu Pengfei was a little anxious, and hurriedly said, "Officer, what do you mean? Why do you ask so many inexplicable questions?"

However, the red light on the polygraph is still on.

"Less nonsense!" Zhao Yu continued, "Let me ask you, do you have an adulterous affair with Lin Meifeng?"

"What!" Liu Pengfei was in a hurry, rubbing his back against the seat vigorously, as if he didn't want to cooperate anymore.

Zhao Yu was also impatient, seeing that time waited for no one. He simply jumped violently, rushed from the table to Liu Pengfei, and grabbed his collar fiercely.

At that time, the other three detectives were shocked, afraid that Zhao Yu would make excessive moves, so they hurriedly stepped forward and dragged them.

Who knows, at this moment, the door of the interrogation room suddenly opened, and Miao Ying entered quickly from the outside, and at the same time stopped the three police detectives with a loud shout.

"You guys go out first!" Miao Ying waved at them, and the three detectives quickly left the interrogation room.

When Zhao Yu saw Miao Ying coming in, she thought she was here to stir up the situation. Who knows, to his surprise, Miao Ying also came to Liu Pengfei, standing side by side with Zhao Yuyi left and right.

Suddenly seeing the two demon kings standing in front of him with fierce eyes, Liu Pengfei swallowed his saliva in a dazen, and his whole body trembled as if he had been electrocuted.

"Comrade Zhao Yu, don't worry!" Miao Ying clenched her fists and rattled, "All the monitoring facilities have been shut down!"

Miao Ying's short sentence made Liu Pengfei beat a fierce spirit.

"Officer, if you have something to say, say it well, I will cooperate!"

Zhao Yu looked at Miao Ying unexpectedly, she didn't quite understand what kind of medicine she bought in the gourd? She cooperated with me so much, she didn't want to lure me into beating the suspect so that she could frame me, right?

Hum!

Am I that stupid?

Zhao Yu let go of Liu Pengfei's collar and asked, "Say it quickly, do you and Lin Meifeng have an adulterous relationship?"

"No!" Liu Pengfei finished answering, but added, "Sir, I really don't understand what you are saying?"

As a result, a green light flashed on the polygraph, and then, with a beep, the red light lit up.

Oh......

Zhao Yu understood, Liu Pengfei and Lin Meifeng did not have an adulterous relationship, but he said that he didn't understand what I said, but he was really lying!

The murderer - that's him!!