Today is the seventh day of Han Xiaoman's disappearance, and we grabbed the small key, but we didn't find Han Xiaoman.

It is not known where she is, whether she is dead or alive.

Xiao Key admitted that he kidnapped and detained Han Xiaoman, but Han Xiaoman escaped by himself three days ago, and there has been no news since then. We conducted a thorough carpet search of Xiao Key's house, and at the same time sent police dogs, but Han Xiaoman was not found.

Whether what the little key said is true or false, whether Han Xiaoman escaped by himself or was transferred to another place by the little key, I'm afraid only the little key himself knows.

It is the first time that the serious crime team is faced with such a situation where the case cannot be solved, and if this continues, I am afraid that the case will become an unsolved case.

In the office of the Serious Crime Team, Li Meng spoke first: "The first thing Han Xiaoman did when he escaped must be to find a way to go home." ”

She is right, when a person is in danger and suffers a blow, the first thought must be to find a safe shelter, and the first thing that comes to mind must be to go home.

Little Key's home is on the outskirts of Ningzhou City, a small bungalow on the edge of the provincial road, which has been completely out of the urban limits of Ningzhou City, not to mention monitoring, and there are no street lights around.

There were not many houses in the vicinity at all, and from a distance, a few small bungalows stood alone on the side of the road, looking like they were about to collapse at any moment.

The little key has made some money in recent years, but he has saved it to marry his daughter-in-law to give the bride price, and he also thinks that if the daughter-in-law does not want the bride price, he will use the money to pay a down payment in the city.

"Where is the place of unfamiliarity, after Han Xiaoman leaves, his first reaction should be to flee, no matter which direction he flees, in short, he will escape from the sphere of influence of the little key first, and then he will start to discern the direction of going home." Xue Hang put forward a different view.

Jiang Tingbai nodded, and also agreed with Xue Hang's opinion: "That's right, there is a word called panicking. ”

"There is a provincial highway nearby, Han Xiaoman will definitely escape along the provincial road, and then wait for an opportunity to ask for help from passing vehicles." Lin Zifan followed everyone's analysis and continued to guess Han Xiaoman's route after escaping.

Jiang Tingbai pursed his lips, took a deep breath, looked out the window with a somewhat wandering look, and muttered: "I hope she can meet a kind person." ”

At the beginning of man, nature is good. Although there have been endless debates about sexual goodness or sexual evil since ancient times, I always want to believe that people have a good heart, but this society gradually does not allow everyone to have a good heart, and everyone's sense of self-protection has become stronger, and there are more and more mentality that it is not about oneself.

It's like whether an old man can be helped when he falls to the ground, this is a thing worth thinking about.

When Han Xiaoman stood on the side of the road in embarrassment and stopped the car for help, who would give her a ride with kindness? And who can guarantee that the person carrying her does not have a plan?

Of course, after analyzing so much, the first premise is that what the little key said is true.

"I think Xiao Key is lying, he has reached a level of perverted obsession with Han Xiaoman, I don't believe he will let Han Xiaoman go."

After being silent for a long time, I put forward my own opinion, this is the case in the case, in the absence of evidence, even if there is only a one percent chance, it is a high-probability event, and we must find a way to prove whether the little key is lying.

Honest people, sometimes not honest.

The Serious Crime Unit, an elite police organization established for serious crimes, each member of it has unique skills and rich experience, and has solved countless cases.

We took turns to interrogate the little key, and we used all the interrogation skills and psychological offensive, but the little key always insisted that Han Xiaoman escaped by himself.

Even we began to slowly believe that Han Xiaoman had really escaped.

"What to do? He said the same thing. "Outside the interrogation room, Li Meng asked me with a frown, she is an expert in criminal psychology, but this time she encountered hard stubble.

I stared at the little key through the wall of the two-way mirror in the interrogation room, and said quietly: "Even if Han Xiaoman really ran away by himself, he must know some clues." Now that three days have passed, there are already a lot of variables, and we must hurry up. ”

"If this is in ancient times, he will be punished directly, and see if he says it or not!" Li Meng was really anxious, standing outside the interrogation room and stomping his feet.

"There are ancient interrogation methods in ancient times, and modern interrogation methods in modern times, and we should use technology." Thinking of this, my brow slowly relaxed, and I already had a way in my heart.

"Technology?" Li Meng looked at me in surprise.

I nodded, still staring at the little key, and said lightly, "Lie detector." ”

Lie detector, a term that is not unfamiliar, its principle is very simple, through the identification of the changes in parameters caused by the psychological changes of people when they lie, such as rapid heartbeat, increased blood pressure, shortness of breath and other physiological changes when people are lying.

There are three prerequisites for the use of polygraph technology: first, the person being tested must voluntarily undergo the test, unless it is involved in a criminal case and no one can force others to take a polygraph, otherwise, it constitutes a violation of personal rights; second, the professionalism and judicial impartiality of professionals are high; Third, the appraisal results are only used as an auxiliary means to review other evidence, and cannot be used as the basis for a verdict.

It's the first time in my current career that I've used a polygraph to assist in a case, and hopefully this thing will give us some clues.

The key was taken to a special polygraph room, similar in size to an interrogation room, where he sat in a chair and was dressed by two professional colleagues to collect data.

When everything is ready, the physiological parameters of the small key are displayed on the computer display screen in front of the criminal police colleagues, including blood pressure, breathing, heartbeat, pulse and other parameters, just like the vital signs monitor used in the hospital.

All the members of the serious crime team stood outside the door, and after I made an OK gesture to the two criminal police colleagues inside, the polygraph began.

"Do you know Han Xiaoman?" The first question was asked by a fellow criminal police officer.

"I just learned her name." The little key replied lightly.

"You killed her?"

"Nope." The little key shook his head.

"What do you do with the corpse?" The criminal police colleague asked as he looked at the monitor.

"I didn't kill her." The tone of the little key was still very flat.

"What tools did you use to bury her?"

"I didn't kill her."

"Shovels?" Colleagues from the criminal police asked questions one after another.

"I didn't kill her."

"Did you bury it alone?"

"Nope."

"Is the shovel flat or pointed?"

"I didn't bury her." The little key replied softly.

The criminal police colleague continued to ask, "Then where did you throw her?" ”

Little Key paused and continued to deny, "I didn't kill her. ”

At this time, on the display screen, the heartbeat of the little key has accelerated significantly.

"Who did you give her to?"