civil forensic

Chapter 148 The Footprint Expert
case center.

The leaves of the green radishes in the corridor are black, like old green radishes that no one cares about.

Several old criminal policemen taught Jiang Yuan tips.

In the interrogation room, what to say and what not to say.

In the interrogation room, the criminal suspect Liu Chang had just finished reading the "Notification of Criminal Suspect's Litigation Rights and Obligations" and was in the process of signing it.

As for the murder case, even the County Public Security Bureau followed the textbook step by step as much as possible.

Otherwise, there are people who want to teach you how to do things.

"What's your name?"

"Liu Chang."

"Any other names or nicknames?"

"No."

"Your nationality, date of birth?"

……

"I want to see the footprint expert." Liu Chang answered a few words, and suddenly he didn't want to cooperate, and shouted.

His expression was a little flustered, and his face was very pale. He wore half-rim glasses, but to be honest, he was still a pretty young man.

It is 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 to make a record first, and people will come in a while."

"It's been so long, it should be here. If you can't come, just tell me, don't lie to me." Liu Chang's expression became more serious.

His pupils kept changing.

Wu Junhao was very aggressive when arresting people, but he was very kind during the interrogation. He still persuaded: "There is no need to lie to you. If you want to see someone, people have to notify the past, then come over, and then come in to see you..."

"You just said quarter of an hour."

"It's not here yet."

"Then show me the time."

Wu Junhao froze again, it's not good to tell this thing the time, this is the basic rule of interrogation.

"Then I want to see my dad." Liu Chang made a new request, but this request changed the faces of people inside and outside the interrogation room.

25-year-olds are still relatively easy to fool.

People who enter the interrogation room will have all kinds of whimsical ideas.

There are many people who fantasize that their crimes are relatively minor, and those who feel innocent.

Liu Chang believed that he had killed the man by accident, and he firmly believed it.

Only then can we 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, which is the most nervous part.

If he refuses to confess, it will be difficult to handle the case in the future.

It can be said that the happy life of hundreds of cadres and policemen in the next week or two depends on Liu Chang's attitude at this time.

As for Liu Chang's father, he was a 50-year-old veteran in the officialdom, and he still had a certain official rank. Difficult would be an understatement.

"You are already 25 years old, you don't need your parents to accompany you anymore." Wu Junhao said suddenly, piercing Liu Chang's sensitive heart.

He has seen too many young men who want to use words and shouts to become a man.

Just a little stab at the "growing pains"-related muscles and have a blast on the spot.

Sure enough, Liu Chang became angry, his hands were shaking, and he shouted: "I want to see the person with footprints, hurry up!"

Instead of yelling to see Dad.

Wu Junhao breathed a sigh of relief, but he did not dare to interrogate again.

Liu Chang's father was actually locked up next door for interrogation.

Liu Chang's father is very sophisticated.

At first glance, he is the kind of leader with little power. When he was arrested, he still had an official tone and was a bit fierce.

This kind of person has steel-like will in most occasions, like stool in a pile of stones exposed to the scorching sun, the surface is slippery and the shell looks hard, and there is nothing left when smashed.

But for Lao Wu, he was not worried about Liu Chang's father's interrogation.

For people like him, the easiest way is to grind the stool with water, soak the hard stool in water for a few days, stir it with your hands, and it will dissolve.

The old oily man had power and money, was corroded quickly, and had many weaknesses.

On the contrary, young people like Liu Chang have violent emotional changes, are very unstable, and can easily retract their confessions.

Just now he explained everything in the car, but he changed again when he entered the interrogation room. God knows what weird behavior will happen next.

People who have killed people already have some psychological problems to a certain extent.

Wu Junhao didn't want a homicide case that was so clear to turn into a muddled case like snot.

outside the interrogation room.

The professionals also realized that Liu Chang's emotions were out of control, and after a few hasty confessions to Jiang Yuan, they let him in.

A group of people stared at the monitor expectantly, clenched their hands into fists, seriously looking like fans of the home team.

Jiang Yuan knocked on the door and entered the interrogation room.

Wu Junhao used the largest interrogation room, which was long and wide, and one-third of the way to the door was blocked with iron railings.

Sitting inside, Liu Chang couldn't even find a window, and the spotlights above his head made him even more irritable.

The so-called "tiger stool" was also fully supported.

The 1.9-meter-three man pulled the stool to the highest point, and his legs were overflowing, and his arms were placed on the table, which also grew out, so that the handcuffs could hardly be locked.

The two restraint belts at the back were fine, but Wu Junhao didn't put them on for him.

It is uncomfortable to use this thing, and it must be much higher than the discomfort of seat belts. He is afraid that Liu Chang, who turned himself in, will be unhappy.

Before the criminal confesses, the policeman looks like a caring big brother.

Only when he falls into the palm will the policeman show his fierce side.

A mature policeman is usually like a mature scumbag.

An immature cop is usually like an immature scumbag.

Jiang Yuan is also very tall. The moment he first entered the door, under the strong light, it was almost as if he saw himself sitting inside...

Liu Chang was similar, and in a blink of an eye, he almost saw another self walking in.

The two seemed to be in a daze facing each other.

Liu Chang is also a serious second-generation official in a small place, and he looks like he has no worries about food and clothing.

"This is our footprint expert, Forensic Doctor Jiang." Wu Junhao motioned Jiang Yuan to sit beside him, and then introduced him to Liu Chang.

"How old are you?" Liu Chang's pupils flinched, but he asked first.

When Jiang Yuan saw such a young suspect, even though he had read the case file and heard about it along the way, including outside, it still felt weird to face him face to face.

"24 is old."

"Younger than me?" Liu Chang suddenly looked at Wu Junhao excitedly!Feet are shaking too:

"Who are you fooling? Is it interesting to make a fake one?"

Wu Junhao was taken aback for a moment, then patted his thick forehead with his big hand.

"You said it earlier, we have so many people, it's easy to get a fake one. Do you think experts should be in their forties or fifties, and it's better to have gray hair, or the kind with little hair?"

Wu Junhao wiped his greasy hair and continued:

"If I had known, I would have made a policeman with no hair. If you are so far away, please invite Jiang Yuan to come over. Our team lacks everything, except age and baldness."

Liu Chang was speechless.

And I think what this strong man said is quite reasonable.

He seriously looked at the young man across from him.

"How did you see my height? I heard that the last footprint expert is also a well-known footprint expert in the province."

His question is still a little professional, which shows that he has indeed learned about it in advance.

Jiang Yuan asked back: "Why do you care about this matter?"

"I just want to understand. I am much taller than normal people. When something happened and I saw footprints all over the ground, I knew there was something wrong." Liu Chang said calmly: "The low height is my own decision. .”

With just this one sentence, Liu Chang revealed a lot of information.

If his words are true, first of all, Liu Chang did 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 that day was 178 to 185, and Liu Chang was too high. Otherwise, if he reported 185, he would be directly in the range.At that time, the task force's screening of him must have been several times stronger.

Secondly, Liu Chang said that the low height was his own decision, which means that someone else decided other things for him.

Most likely his parents.

In other words, this sentence proves that the parents did cover up.

In the end, Liu Chang also revealed his mental state.

It is nothing new that young people want to decide their own future and use their own cognition to fight the world.

It's just that some people finally became the fathers of the nation because of this-Sun Yat-sen is the one in question.

Some people turned out to be nothing more than a murderer—that's Qin Wuyang.

Jiang Yuan took a deep look at Liu Chang.

From his face-to-face feeling, does this guy still want to learn something?
Think accidental killing can still come out, want to prepare for the next time?

"If you don't say it, I won't say it either." Liu Chang felt that he could hold Jiang Yuan.

Jiang Yuan smiled, and said: "Judging height is actually a systematic job, and it's all in the book."

"I just want to hear from you."

"Well, the simplest point is to judge height by foot length. There are some empirical rules."

Jiang Yuan said slowly: "For example, in ancient China, there were standing seven sitting five crosses three times, that is, 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."

"Didn't it say that some people have nine heads?"

"That's a special case. Let's talk about the general rule first."

Liu Chang agreed: "Okay, so multiply by 7?"

"Shanghai people take 6.75, Northeast people take 6.876, Shaanxi people take 6.734, Chongqing 6.856..." Jiang Yuan directly gave a comprehensive answer.

"But I wore shoes that day!" This is what Liu Chang is most worried about.

"And I wear a little smaller than normal shoes. 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 said."

"To further judge the height, you need to increase the data of the foot width. Although your feet are relatively long, they are wider than normal. This is another detail point."

Liu Chang listened to the young forensic doctor in front of him talking, and actually agreed with it:
"The feet of Chinese people are generally wider than those of Europeans, so it is easy to pinch your feet when you wear shoes of foreign brands."

His feet are too wide, and I feel deeply that it is not very easy to buy shoes.

"Then there is the area of ​​the soles of the feet and the width of the soles. Add these two data, and the resulting regression equation has a relatively high degree of availability." Jiang Yuan also spoke carefully, since they are all public information anyway.

According to the 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 the average data. How do you know that my height is 193?"

"The real conclusion should be 191 to 195, and I judge that 193 is the most likely." Jiang Yuan replied.

He also explained: "In fact, it is still an element of experience. In addition, there are indentations and strides..."

...The leaders outside the interrogation room were all confused, a little confused, a little confused. Watching the conversation between the young forensic doctor and the young criminal suspect inside, I really saw the sense of urgency in the TV series .

Wonderful and indescribable.

"Can you talk about it in detail?" Liu Chang asked.

"It's up to you." The big-muscled veteran Wu interjected, and said, "Let's make up the interrogation record first, and you can talk about it in detail later."

"What's the matter?" Liu Chang leaned back slightly, but the iron chair couldn't lean back, which made him frown slightly.

"Tell me first, why do you want to kill people?" Wu Junhao didn't follow the order and asked directly.

Liu Chang curled his lips: "Didn't I say that?"

"Now is the formal interrogation. If you say it now, it is considered that you have surrendered..."

Liu Chang raised his head and said slowly: "I was also an idiot at the time. I bumped into his son and scolded him a few times. That kid was dressed in tatters..."

Recalling the scene seven years ago, Liu Chang also had a trace of regret, shook his head, and said: "Anyway, I wanted to make up for it, and I happened to be going to the door that day, so I rode a bicycle and went to his house, and I happened to meet him. Dad, if the old man wants to fuck me, I can only do it back, if I'm not careful..."

"How do you know where his house is?"

"That kid said it himself. He said that down the county road, there are two big lions with wings, which are their home." Liu Chang's voice became weaker and weaker...

(End of this chapter)