The result of handcuffs is very simple, from one side, it is two semicircles, one side is fastened with bolts, and on the other side is a flat box with a locking device, that is, the cuff body.

There are two main types of ways to open handcuffs without keys, one is from the keyhole, there are two main types of common handcuff keys, the newer one is the inner triangle, like the key of the train door, and the other is the more old-fashioned "Bu" The key with a ring on the top of the word, correspondingly, inside the keyhole is a vertical triangular prism, which can be opened by twisting the key sleeve, or by turning the deadbolt root or one-way gear with the horizontal side of the word, as long as there are the right tools, the new handcuff can be opened by holding or pinning the triangular prism, such as a coin, and the old-fashioned handcuffs can be opened by turning the deadbolt root with a sharp stick or turning a one-way gear, such as a pin, which is very common in movies.

The working principle of handcuffs is that the deadbolt or one-way gear is stuck in the wolf's teeth, when wearing handcuffs, the wolf's teeth can lift the deadbolt or turn the one-way gear, and the wolf's teeth are inclined, and the lockbolt can only be lifted or rotated when the handcuffs are worn, and there is no way to pull them out.

But anything thin and strong enough, such as a piece of aluminum torn from a can, or a folded chocolate foil, can be attached to the wolf's teeth, slipped through the gap in the shackles, lifted the deadbolt or turned the one-way gear, and stuck in the middle so that the wolf's teeth can slide backwards, which is the simplest and most violent method.

(Regarding handcuffs, there are a lot of videos and illustrations on the Internet, interested students can go and see it, but I can't log in in the background, which makes me frightened and tired, so I wrote this paragraph to help me refocus)

Sun An hid a small piece of tin foil on his body, just to deal with such a situation, he successfully opened the handcuffs and stood in front of the sixth child.

The sixth man was still holding the electrical tape in his hand, looking at Sun An blankly, before he shouted, his fist had been imprinted on his throat, the voice was beaten back, there was a snort from the depths of his throat, his body leaned back, his knees were on the edge of the coffee table, and he was about to fall.

There is also a toolbox on the coffee table, if you fall down, the things in the toolbox will be shaken out, and it will fall for a while, it is likely to attract others, Sun An grabbed the clothes on the chest of the sixth child, pulled it back hard, and moved forward with his body, turned around the sixth person, came behind the sixth child, and strangled the neck of the sixth child.

Strangled the side of the neck, not the throat, the left hand pressed on the back of the head of the sixth child, the arm was erected, and the right hand of the neck turned around and grabbed the left arm, which is equivalent to locking, and the principle of handcuffs is almost the same, no matter how strong the sixth is, it is impossible to pull Sun An's arm apart.

The strong side arteries/veins are strangled, the brain is deprived of oxygen, and the limit of what a person can hold on to is about thirteen seconds, Sun An broke into Yang Lei's house a few days ago, strangled Yang Lei in this way, and strangled the sixth child in this way today.

............

The sixth child was also woken up by the splash of water, he had been tied to the folding chair with electrician tape, his mouth was also strangled, it was stuffed with bent playing cards, he couldn't make a sound, and his hands were handcuffed to the chair.

He saw Sun An put the glass in his hand on the table, picked up the rechargeable pistol electric drill, and gently pressed the trigger button.

The electric drill rotated rapidly, and the sound it made was not small, but the sixth child originally planned to torture Sun An, even if someone heard the sound of the electric drill, they would not feel strange, so this sound could be completely ignored.

"In fact, this thing is much more scary than the vice, the fingers are cut off, the finger bones are crushed, I see a lot in movies and games, and it is not very scary when I get used to it, it just hurts, but I see that there are many small holes in my body, and the fear will not stop, especially on the bones. Sun An squatted down and pressed the tip of the electric drill against the knee of the sixth child.

Lao Liu struggled, but the electrician's tape was easy to tear, but it was difficult to break, and there were many strips wrapped around his body, and it was useless for him to double his strength, so he only shook the folding chair under him into a painful moan.

Seeing that Sun An didn't press the button, he stopped struggling again, and the beads of sweat on his head rolled down.

Seeing this, Sun An said with a smile: "Now I'll let go of your mouth first, and you can spit out the contents yourself, if you dare to scream and shout, I don't need to talk about the consequences, right? ”

The sixth child gasped violently and nodded.

The tape was pulled away and strangled on his chin, and he spat out the pokers in his mouth, not daring to scream, just looking down at the electric drill on his knee.

Sun An spoke again: "I want to get some answers from you, it just so happens that you also want to delay time and wait for someone to come, we can cooperate well, but if you talk nonsense, I notice that there is no logic at all, I will immediately open a hole in you, I just said, your IQ is more touching, it is impossible to deceive me, answer the question honestly, I can promise to let you go." ”

"Even if you kill me, I won't be able to get out, you said it yourself, I'm not an important person, and no one will care about my life or death. The sixth said in a deep voice, the sweat on his forehead kept falling.

"You don't have to worry about it, I can go out, because I don't care about other people's lives or deaths. Sun An stood up and asked the first question, "How big is this place, how many people are there?"

He can get out, but if he can know these things, it will be easier to get out.

"It's the size of half a male prison, and I don't know how many people there are now, but there should be no less than forty. The sixth child immediately replied that he wanted to say more, but when the lie came to his lips, he couldn't say it, and he instinctively sensed the danger and changed his words and told the truth.

"That's a big project. Sun An sighed.

"It didn't take much time to expand the sewers, and there was no shortage of labor in the prison. The sixth replied.

"Then if you blow up this place, won't the prison collapse?" Sun An had a whim, he had played a trick of letting all the prisoners out before, and almost broke down the policemen who wanted to arrest him.

The sixth shook his head: "The walls are thick, the room is small, even if it collapses, it will only collapse a small area, and it will be restored soon, and the entire prison will not collapse." ”

Sun An said with some disappointment: "Okay, the next question, who is your boss? ”

The sixth shook his head again: "I don't know, it's not a person in the prison anyway, you have to ask Warden Feng about this kind of thing, he may know that the prison is actually controlled by those people, and Warden Feng is only a high-level." ”

"Interesting...... Sun An began to think again, thinking about why he was sent to this prison.

-