DF Chapter 9
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Zhen Yi’s brow twitched: Could they not flirt in a more appropriate setting?
“Nervousness and lying are different…” Yan Ge, surprisingly patient, began to explain the technicalities to Song Yi.
His naturally deep and smooth voice made even unfamiliar terms sound approachable and not cold. After about a minute, Zhen Yi suddenly realized that even when they were dating back then, he never talked to her for this long. Every conversation had been limited to a few words, as if saying one more word to her would kill him.
Once Song Yi fully understood, Yan Ge handed her a document outlining the guidelines. It essentially stated that if she told the truth, the test would work in her favor; if she lied, it would work against her.
The final line read: The psychological test is entirely voluntary, and the participant has the right to refuse or stop the test at any time.
Of course, that line was just for show.
Yan Ge signaled to Si Gui, who proceeded to attach the equipment to Song Yi—breathing sensors, a blood pressure cuff, and electrodes on her ring finger.
Zhen Yi focused on the polygraph machine, where one line started to move. She had no idea what it meant, but Yan Ge stared at it intently, not saying a word.
Once everything was ready, Si Gui stepped back to stand with Zhen Yi in the corner. Zhen Yi expected Yan Ge to start questioning Song Yi, but instead, he turned to her. “Pick a number between 1 and 9, but don’t tell me.”
Zhen Yi pressed her lips together.
“Have you chosen?” Zhen Yi nodded.
“Whisper it to her,” Yan Ge instructed, nodding toward Song Yi. Zhen Yi leaned over and whispered in Song Yi’s ear, “Seven.”
“We’ll start with a stimulation test to record your physiological responses,” Yan Ge explained, using a term Song Yi didn’t fully understand. He then instructed, “I’ll ask you if the number she told you is one of the options. Regardless of what I ask, your answer should always be ‘No.’ Got it?”
“Okay.”
“Is it 1?”
“No.”
…
Yan Ge went through the numbers from 1 to 9, and each time, Song Yi calmly denied. Zhen Yi carefully observed Song Yi’s expressions and body language. Thanks to yesterday’s intensive training, there were no odd reactions. Zhen Yi thought, perhaps Song Yi had become a master at hiding her emotions.
After watching the screen for a while, Yan Ge finally said, “It’s 7.”
Song Yi stiffened, not moving an inch. At the exact moment Yan Ge revealed the answer, Zhen Yi noticed one of the lines on the screen suddenly spike.
Yan Ge asked, “Are you feeling uncomfortable?”
Song Yi forced a smile. “No, it’s just… amazing.”
“That’s why lying doesn’t work in your favor,” he said calmly, his gaze passing over Zhen Yi briefly. For some reason, her heart skipped a beat, giving her a sense of unease. Song Yi replied, “Understood.”
“Let’s begin then.”
The room was quiet except for the back-and-forth between Yan Ge and Song Yi.
Zhen Yi had initially expected the polygraph examiner to apply pressure through tone or body language, but Yan Ge didn’t. His voice remained steady, low, and without fluctuation. His posture was upright, devoid of any unnecessary movements.
He didn’t look at the polygraph machine, focusing instead on Song Yi. “Your name is Song Yi?”
“Yes.”
“Were you at the Ecstasy club on the morning of April 28th?”
“Yes.”
“Are you from K City?”
“No.”
“Did a friend invite you to Ecstasy?”
“No.” There was a slight hesitation.
“Did you just happen to pass by Ecstasy and decide to go in randomly?”
“…No.”
“Did you go to the club alone?”
“Yes.”
“You’re an actress?”
“Yes.”
“Was it your first time at Ecstasy?” (The police hadn’t asked this during their questioning earlier. Now Si Gui was making notes.)
“Yes.” Another moment of hesitation.
“Are you going to answer my questions honestly?”
“Yes.”
“Did you drink alcohol that night at Ecstasy?”
“Yes.”
“Was it hard liquor?”
“No.” She answered quickly.
“Did you drink red wine?”
“No.” This time, her response slowed down.
