The leaves of the pothos in the corridor are black, like old pothos that no one cares about.
Several veteran detectives taught Jiang Yuan tips.
In the interrogation room, what should be said and what should not be said.
In the interrogation room, criminal suspect Liu Chang had just read the "Notification of Criminal Suspect's Litigation Rights and Obligations" and was in the process of signing it.
The person responsible for the murder case, even the county police bureau, followed the textbook step by step as much as possible.
Otherwise, there are many people who want to teach you how to do things.
"May I have your name?"
"Liu Chang."
"Have you ever used any other names or nicknames?"
"No." Remember the URL
"Your nationality, date of birth?"
…
"I want to see the footprint expert." Liu Chang answered a few words, but suddenly he didn't want to cooperate anymore and shouted.
His expression was a little flustered, his face was very pale, and he wore half-rimmed glasses, but to be honest, he was still a very good-looking young man.
He's also tall, which is quite an advantage.
Sitting opposite him, Wu Junhao, who was wearing a police uniform and felt particularly strong and muscular, coaxed patiently:
"Didn't we agree that we should take notes first and people will be here soon?"
"After such a long time, it should be here. If I can't come, just say, don't lie to me." Liu Chang's expression became more serious.
His pupils kept changing.
Wu Junhao was very fierce when he arrested people, but he was very kind during the interrogation. He still advised: "There's no need to lie to you. If you want to see someone, they don't have to inform you, and then come over, and then come in to see you..."
"You just said a quarter of an hour."
"It's not that it hasn't arrived yet."
"Then show me the time."
Wu Junhao froze again. It was hard to tell the time for this thing. This was all the basic rules of interrogation.
"Then I want to see my dad." Liu Chang made a new request, but this request made the faces of everyone inside and outside the interrogation room change.
25-year-olds are still relatively easy to fool.
People who enter the interrogation room will have all kinds of strange thoughts.
There are many people who imagine that their crimes are minor and feel that they are innocent.
Liu Chang believed that he killed someone accidentally and firmly believed it.
Only then will everyone have a basis for dialogue.
In a real interrogation room, there will be at least one idiot. This is the so-called interrogation room principle.
Liu Chang's brain suddenly returned to normal. This was the most nervous thing.
If he refuses to explain, it will be difficult to handle the subsequent case.
It can be said that the happy life of hundreds of cadres and policemen in the next one or two weeks depends on Liu Chang's attitude at this time.
As for Liu Chang's father, he is a 50-year-old official with a certain official rank. To describe him as difficult is an understatement.
"You are already 25 years old and you no longer need your parents to accompany you." Wu Junhao suddenly said something that pierced Liu Chang's sensitive heart.
He has seen too many young men who want to use words and roars to become a man.
Prick the "Growing Pains"-related muscles a little and explode on the spot.
As expected, Liu Chang became angry, his hands were shaking, and he shouted: "I want to see the person whose footprints are there, hurry up!"
I no longer yell to see my dad.
Wu Junhao breathed a sigh of relief, but did not dare to interrogate anymore.
Liu Chang's father is actually being interrogated next door.
Liu Chang's father is very experienced.
At first glance, he looked like a leader with a small amount of power. When he was first arrested, he still had an official tone and was a bit fierce.
This kind of person has an iron will in most situations, like the stool in a pile of rocks that has been exposed to the scorching sun. The surface is slippery and the outer shell seems to be hard, but when smashed open, nothing is left.
But for Lao Wu, he was not worried about Liu Chang's father's interrogation.
For people like him, the simplest method is to soak hard stools in water for a few days, stir them with your hands, and then they will melt away.
The old man once had power and money, but he was corroded quickly and had many weaknesses.
On the contrary, young people like Liu Chang have violent mood changes and are very unstable, and it is easy to change their confessions.
Just now, he was giving a complete explanation in the car, but he changed again when he entered the interrogation room. God knows what weird behavior he will have next.
People who have killed people already have some psychological problems to a certain extent.
Wu Junhao didn't want a clear-cut murder case to turn into a snot-like confusion.
Outside the interrogation room.
The professionals also realized that Liu Chang's emotions were out of control, and after hurriedly explaining a few words to Jiang Yuan, they let him in.
A group of people stared at the surveillance camera expectantly, clenching their hands into fists, as if they were fans of the home team seriously.
Jiang Yuan knocked on the door and entered the interrogation room.
Wu Junhao used the largest interrogation room, which was long and wide. One-third of the interrogation room was blocked by iron railings.
Liu Chang was sitting inside and couldn't even find a window, and the spotlight above his head made him feel even more irritable.
The so-called "Tiger Bench" is also fully occupied.
The man, who is 1.93 meters tall, pulled the stool to the highest position and his legs were hanging out. When his arms were placed on the table, they were so long that the handcuffs could hardly be locked.
The two restraints at the back were fine, but Wu Junhao didn't put them on him.
This thing was uncomfortable to put on, much more uncomfortable than a seat belt. He was afraid that Liu Chang, who surrendered, would not be happy.
Before the criminal confesses, the police act like a close brother.
Only when he falls into the palm of his hand will the policeman show his ferocious side.
Mature police officers are usually like mature scumbags.
And immature police officers are usually like immature scumbags.
Jiang Yuan is also very tall. The moment he first entered the door, under the strong light, it was almost as if he could see himself sitting inside...
The same goes for Liu Chang. In a blink of an eye, he almost saw another one of himself walking in.
The two of them seemed to be in a daze when they faced each other.
Liu Chang is also a serious second-generation official in a small place, and he seems to have no worries about food and clothing.
"This is our footprint expert, Forensic Doctor Jiang." Wu Junhao motioned for Jiang Yuan to sit next to him, and then introduced him to Liu Chang.
"How old are you?" Liu Chang's pupils shrank, but he asked first.
Jiang Yuan saw such a young suspect. Although he had read the case and heard about it along the way, including watching it outside, it still felt strange when he actually faced him face to face.
"24 years old."
"Younger than me?" Liu Chang suddenly looked at Wu Junhao excitedly! His feet were also shaking:
"Who are you fooling? Is it interesting to make a fake one?"
Wu Junhao was stunned for a moment, then slapped his thick forehead with his big hand.
"You told me earlier, we have so many people, it's convenient to make a fake one. Do you think experts should be in their forties or fifties, preferably with gray hair or less hair?"
Wu Junhao wiped his greasy hair and continued:
"If I had known better, I would have made a hairless policeman and asked Jiang Yuan to come over from such a distance. We lack everything in the team except age and baldness."
Liu Chang was speechless.
And I think what this strong man said is quite reasonable.
He looked at the young man opposite him seriously again.
"How did you see my height? I heard that the last footprint expert was also a famous footprint expert in the province."
His questions were a little professional, which showed that he had indeed understood them in advance.
Jiang Yuan asked back: "Why do you care about this?"
"I just want to know something. I am much taller than normal people. When the accident happened and I saw the footprints all over the ground, I knew there was something wrong." Liu Chang said calmly: "It was my decision to report my height as low.
."
With just this sentence, Liu Chang revealed a lot of information.
If what he said is true, first of all, Liu Chang does not know the previous fingerprint expert's judgment on his height.
In other words, his father's relationship was not to the extent of leaking information about the case.
Chen Wenming's judgment on that day was only 178 to 185. Liu Chang was too high. Otherwise, he would have reported 185 and entered the shooting range directly. At that time, the intensity of screening of him by the task force must have been several times greater.
Secondly, Liu Chang said that he decided to lower his height by himself, which means that someone else decided other things for him.
Most probably his parents.
In other words, this sentence proves that the parents are indeed covering up.
Finally, Liu Chang also revealed his mental state.
It is nothing new that young people want to decide their own future and use their own knowledge to fight the world.
However, some people eventually became the founding fathers because of this—I’m talking about Sun Yat-sen.
Some people are just murderers in the end - I am talking about Qin Wuyang.
Jiang Yuan took a deep look at Liu Chang.
Judging from his face-to-face feeling, does this guy still want to learn something?
Do you think you can still survive an accidental murder, and want to make some preparations for the next time?
"If you don't say it, I won't say it either." Liu Chang felt that he could control Jiang Yuan.
Jiang Yuan smiled and said: "Judging height is actually a systematic job, and it is all in the book."
"I just want to hear what you have to say."
"Okay, the simplest thing is to judge height based on foot length. There are some empirical rules."
Jiang Yuan said slowly: "For example, in ancient China, there was a practice of standing seven and sitting five times, which means that the height of an average person is seven times the length of the head, and the length of the feet is actually about the same as the length of the head."
"Isn't it said that some people have nine heads?"
"That's a special case. Let's talk about the general rules first."
Liu Chang expressed his approval: "Okay, so multiply by 7?"
"People from Shanghai are 6.75, people from Northeast China are 6.876, people from Shaanxi are 6.734, people from Chongqing are 6.856..." Jiang Yuan directly gave a comprehensive answer.
"But I wore shoes that day!" This is what Liu Chang worries about the most.
"And the shoes I wear are a little smaller than normal. The shoes squeeze my feet, and the size is different from usual."
"I can tell?"
"I can tell." Jiang Yuan nodded and asked, "Shall I continue?"
"you say."
"To further determine your height, you need to add the data of foot width. Although your feet are longer, they are wider than normal. This is another detail."
Liu Chang listened to the young forensic doctor in front of him talking, and actually agreed a little:
“Chinese people’s feet are generally wider than Europeans, so it’s easy to pinch your feet when wearing foreign brand shoes.”
His feet are too wide, which makes it difficult for him to buy shoes.
"Then there is the area of the sole of the foot and the width of the metatarsal. If these two data are added, the regression equation formed will be more usable." Jiang Yuan said very carefully, since it is all public information anyway.
According to interrogation experts, it would be beneficial to chat with Liu Chang for a while at this time.
Liu Chang frowned a little when he heard the regression equation and said: "You are talking about average data. How do you know that my height is 193."
"The true conclusion should be 191 to 195. I judge that 193 is the most likely." Jiang Yuan replied.
Then he explained: "Actually, it's still a component of experience. In addition, there are indentations and strides..."
...The leaders outside the interrogation room were confused, a little confused, and a little confused. Watching the conversation between the young forensic doctor and the young suspect inside, I really saw a sense of urgency like in a TV series.
.
Wonderful and beyond words.
"Can you tell me more carefully?" Liu Chang asked.
"It's your turn." Big muscular Lao Wu intervened and said, "Let's make up the interrogation record first, and you can talk about it in detail later."
"What are you trying to fix?" Liu Chang leaned back slightly, but the iron chair couldn't be leaned on, making him frown slightly.
"Tell me first, why do you want to kill someone?" Wu Junhao asked directly without leaving in sequence.
Liu Chang pouted: "Didn't I tell you before?"
"Now is the formal interrogation. If you say it now, you will be considered to have surrendered..."
Liu Chang raised his head and said slowly: "I was also stupid at the time. I bumped into his son and cursed him a few times. The boy was wearing rags..."
Recalling the scene seven years ago, Liu Chang also felt a trace of regret. He shook his head and said: "Anyway, I wanted to make amends with him. I happened to be there that day, so I rode a bicycle to his house and bumped into him.
Dad, if the old man wants to fuck me, I can only go back and do it again. If I’m not careful..."
"How do you know where his home is?"
"The boy said it himself. He said that walking down the county road, there are two big lions with wings, which is their home." Liu Chang's voice became weaker and weaker...
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