After a two-day break, Han Bin returned to work.

In the morning, Han Bin attended a meeting of a city bureau, took a nap in the afternoon, signed a few documents, and began to study criminal psychology profiles.

And there is a prerequisite for learning this skill, that is, to have a strong observation ability, and Han Bin's observation ability is far beyond ordinary people, and using this skill can be described as twice the result with half the effort.

Criminal Mind Profiles originated from abroad, the United States to be exact, and people who are proficient in this skill are known as profilers.

Through the analysis of the modus operandi, scene layout, and criminal characteristics, the profiler outlines the criminal mentality of the criminal, so as to further predict his race, gender, age, professional background, appearance characteristics, personality characteristics, and even the next action, so that the police can narrow the scope of the search and arrest and stop the continuation of the crime in time.

There are similar studies in China, but they are not very mature, and the division of labor is not so detailed, it belongs to the branch of criminal psychology, and the knowledge reserve is very complex, usually some experienced old criminal police officers are playing the role of profilers, but because of the lack of knowledge reserves, the accuracy of the profiles needs to be improved.

In the final analysis, the State does not attach great importance to this aspect.

If you want to improve the profession of profiler, you must meet four conditions, the first requires a huge knowledge system, the second is a very deep study in criminal psychology, the third is to go to the front line to investigate real cases on the basis of the first two, and the fourth is to make a systematic summary.

Being able to learn criminal psychology profiling skills is of great help in solving serial cases.

"Jingle Bell ......"

The mobile phone rang for a while, Han Bin picked up the mobile phone and took a look, it was the phone of the old leader Zheng Kaixuan.

Han Bin pressed the answer button and said with a smile, "Good leader." ”

Zheng Kaixuan's voice sounded on the mobile phone, "Captain Han, we are now in the same position, I don't dare to be your leader." ”

"Team Zheng, don't be joking, if you have any orders, you can say it directly. ”

"Have you been busy lately, do you have any important cases in your hands?"

"It was very busy some time ago, and now there are cases that are in the closing stage, but they are not very busy. ”

"That's great, I have a case here that I just want to ask you for. ”

"What case?"

Zheng Kaixuan said, "We are investigating an old case more than ten years ago, and recently caught a person suspected of being involved in the case, but because too much time has passed, we are not sure whether he was involved in the case, and the key clue is that the suspect left a set of footprints back then, and I would like to ask you to help identify whether this set of footprints is consistent with his footprints." ”

Han Bin happily agreed, "Okay, the old leader has spoken." Even if I'm working overtime at night, I'll have to get you done. ”

"Yes, it's enough to have your words, and I'll invite you to drink when I get back to Qindao. ”

Han Bin smiled, "That's not good, I'll treat you when you go back to Qindao, and you'll be counted as you when you go to Quancheng." ”

Zheng Kaixuan said heartily, "No problem, I've been thinking about you old colleagues for a long time, and I'll be happy whenever I come." ”

Han Bin was puzzled, "By the way, Team Zheng, doesn't the Provincial Public Security Department have footprint identification experts? It stands to reason that you should look for them, they can also issue relevant appraisal reports, I don't have that qualification." ”

"Eh, don't mention it. Ma Lao, a footprint identification expert from the Provincial Public Security Department, fell ill and was hospitalized. There is also a footprint identification expert is his apprentice surnamed Liu, after we caught the suspected person involved, we immediately collected his footprints and sent them to the technical department together with the set of footprints more than ten years ago, and waited for about three days before replying.

The expert surnamed Liu came in person, and his attitude was very good. But he couldn't see whether it was the same person's footprints, and said that he would have to wait for his master Ma Lao to be discharged from the hospital and ask his old man to identify it.

I was anxious and asked him when Ma Lao would be discharged from the hospital. He didn't know. Then I'm not dumbfounded. I asked Expert Liu if there was anyone else who could identify it. Expert Liu said that it may be possible to send it to the capital, but there is no second person in the whole Luzhou except for his master.

When I thought about it, I guess the provincial department can't count on it. It's okay with the capital. It takes three days to send it to the provincial hall, and it can't be three months to send it to the capital, so I have to ask your brother for help. ”

Han Bin said, "Team Zheng, you can send the information of the people involved in the case and the set of foot prints, and I will help you take a look." ”

"Okay, I'm sorry for you. ”

"You're welcome to me. ”

"Binzi, when will there be a result? ”

Han Bin thought for a while, "Tomorrow, don't worry about it, I'll give you a letter." ”

"Okay, it's still my brother's pleasure. ”

The two chatted a few more words before hanging up.

It didn't take long for Han Bin to receive the document from Zheng Kaixuan and began to study it......

......

Rongyuan Community.

Today's weather is extremely cold, and there is a northeast wind level 4, blowing tears on the face and flowing down, blowing on the top of the head like a pinprick stinging.

A couple ran over with a child in their arms, and the man opened the door of the unit and let his wife hold the child in first.

"Frozen to death, the baby is not cold. The woman asked.

"Cold. "The child is too young to learn how to speak, but he just said one word.

The man rubbed his hands and covered the child's face, "The baby's face is frozen red, we won't come out in the future, and we'll talk about it when the weather is warm." ”

The woman said, "Cold is cold, children can't stay at home all the time, and they are easy to get sick." ”

The man felt that his wife's words were also reasonable, and he felt uncomfortable if he didn't go out for a day, "Then next time I come out, I will wear a mask for the child, so that I won't directly inhale the air conditioner." ”

"We don't have masks for children, they are all for adults. ”

"Buy it. ”

"Buy, buy, buy, you know to buy, as if our family is very rich. ”

The man was a little weak-hearted, "If you don't have money, you can't lose your child, you have to buy it." ”

The woman nodded, "I'll go to the pharmacy tomorrow to take a look, hey, I bought it earlier, Double Eleven, Double Twelve have passed, and I don't know when there will be a discount next time." ”

The man sighed softly and did not speak.

With a "ding-dong ......", the elevator door opened.

"Let's go inside. The man blocked the elevator door with his hand.

After the family of three entered, a figure ran outside the door of the unit.

The woman glanced at the elevator when she got on the elevator and pressed the door button to prevent the elevator door from closing.

After a while, a man came running quickly, a man in his twenties, tall, thin, a little handsome, and a strange smell on his body, like a mixture of smoke and perfume.

With a cigarette in his mouth, the man closed the elevator door and smoked aside.

The boy's father frowned, a slight look of uncertainty on his face.

"Ahem...... "The child couldn't stand the smell of smoke and coughed.

The little boy's father couldn't help it, "Dude, can you snuff out the cigarette, the child is too small to smell the smoke." ”

The smoking man glanced at him, did not speak, and still smoked to himself.

The man's voice was a little louder, "Dude, puff out the cigarette, thank you." ”

The smoking man said displeased, "It's none of your business that I smoke." ”

The boy's father said, "If you want to suck it at home, you can't smoke it in front of my child." ”

"I'm going to suck it, what can you do, I don't want to smell it, it's stinky. ”

The little boy's father was angry and pointed at the man who was smoking, "You scold me again, believe it or not, my parents didn't teach you to speak?"

"Smack!" the man smoking reached out and fanned the little boy's father's hand, "You can talk about me, not my mother!"

After saying that, he also spit out two smoke rings vigorously.

"You are looking for a fight!" scolded the boy's father.

The smoking man looked at the other party with a provocative expression and pointed to his head, "You move me to try, come, try, try, I can't scare you to death." ”

"Ding-dong......" The elevator door opened.

"Husband, let's go. The boy's mother tugged at her husband's sleeve.

The father of the little boy sends his wife and children out of the elevator.

"Phew!" the man smoking a cigarette spat on the ground.

————

The little boy's father turned around and rushed over, smashing a punch in the face of the smoking man, "Grass you turtle grandson......