Yin Feng said, "Ah Xu, let me give Fu Wenxiu a lie detector test."
You Mingxu was stunned.
Yin Feng said: "Just now I saw a polygraph in the storage room next to the forensic department. It suddenly occurred to me that I know how to use it. I learned it from my teacher."
Huaicheng is an important city in southwestern Hunan, so it is not surprising that there is a polygraph. There was a period of time when this method was promoted and studied throughout the province, but it was new after all and not absolute evidence, so the counties and cities below did not use it much and the equipment was just left there.
You Mingxu: "Is that thing useful?"
Yin Feng: “You’ll know after you test it.”
You Mingxu nodded: "Okay." She thought, even if it was useless, it would be good to scare Fu Wenxiu or test it out.
"Do you think it could be him?" You Mingxu asked.
Yin Feng replied: "His mental state is not normal and his emotions are unstable. He has the skills to kill and deal with Zhao Feier, so he cannot be ruled out as a suspect."
"Besides..." You Mingxu said, "his fingerprints were so thoroughly destroyed that the skin on all ten of his fingers was almost worn away."
They did what they said. They simply asked for two helpers from the forensic team, returned to Fu Wenxiu's house overnight, and brought the man back to the bureau. Fu Wenxiu was called out of bed. He looked gloomy, but he suddenly laughed all the way, which made everyone feel uneasy.
Once they entered the interrogation room, only Yin Feng and a young man from the forensic team who had used a polygraph faced Fu Wenxiu.
You Mingxu was standing behind the dark glass. Perhaps because he and Yin Feng had a mutual understanding before, Fu Wenxiu did not resist or cooperate. Instead, he seemed very excited after seeing the polygraph.
In the interrogation room, the complicated and lengthy process of questioning, measuring and recording began.
You Mingxu looked at it for a while, then looked down at her watch. It was 3:30. She couldn't remember how long she had not slept in. At this moment, she was caught up in an extremely quiet wait. She seemed to collapse all of a sudden. Her temples ached badly and she was overwhelmed by sleepiness.
She simply leaned back in a chair, stared at the interrogation room, and slowly closed her eyes.
Even if I tell myself to rest, my mind won't stop. She was in a daze, and things related to the case kept coming to her mind. Faces flashed before my eyes and streets passed by. The scene of the sinful carnival at Fenjinbao Company, a secret tunnel; Fan Jia stood up in the meeting room and said: Let me go.
…
The scene flashed, and she was on a quiet long street again. She stood in the cold wind, watching a man fall to the ground, and a tall black shadow picked up the man and walked into the darkness.
You Mingxu became anxious and chased him fiercely in his dream. But the slum is so big, with winding streets in all directions, who knows where they went? !
…
Yes, car! You Mingxu was in a daze but her mind was racing, and she even felt a little pain in her blurred consciousness.
Back then, the man wanted to transport Zhao Feier to the suburbs to abandon her body. Even if his family didn't have a car, he must have known how to drive.
But she had already checked the system, and the car ownership situation of those four people was exactly as they said. Except Shao Yuansheng who owns a car, the others have neither a car nor a driver's license. Shao Yuansheng is suspected of a sexual crime, but his fingerprints do not match the ones on the box.
Car...Fingerprints...
Car...Fingerprints...
A picture flashed in You Mingxu's mind.
It was a courtyard, dark and normal except for some dark brown marks of age on the ground, there was nothing unusual about it.
That was the place she and Yin Feng had been to a few hours ago.
There is a big tree in the yard.
There is a special open space under the big tree.
There were some traces of dirt on the ground.
The light was bad in that yard at the time, so she just took a quick glance. But at this moment, half asleep and half awake, the marks on the soil appeared so clearly in front of her eyes. .
Those are wheel marks.
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