Professor Liang divided the police force into three groups and then arranged tasks.
The interview team was led by Hua Long. Focusing on the location of the crime, they conducted a survey of the households around Xiaocheng Park and investigated the family relationships of the deceased. The records must be detailed and in-depth. These tedious tasks are crucial to the progress of the case, even if nothing happens.
If nothing is found, we can also analyze whether the case was committed by an acquaintance.
The evidence team is headed by Bao Zhan. The difficulty of the team's work is that there is no evidence. The murder weapon is a sharp stone, which can be seen everywhere, so it is difficult to have practical value. The deceased, Lao Ma, was raped and killed and died naked. The evidence team must
Look for the deceased's clothes and the lost bicycle. The murderer left only two things, the semen in the deceased's body and the shoe prints on the ground at the scene. These are the focus of the investigation.
Su Mei is responsible for understanding the sexual perversion cases that have occurred in Xiaocheng in recent years. After consulting the criminal investigation files, it was found that the murderer disguised himself as a woman and raped and killed old men in public places. He probably had a criminal record before.
The old director said: "This case is not easy to characterize."
Professor Liang said: "Although the deceased's clothes and bicycle are missing, the possibility of murder is unlikely."
Su Mei said: "It's not a robbery of wealth, it's a robbery of sex!"
Hualong said: "That's nonsense. What kind of beauty can a dry old man have?"
Bao Zhan said: "The deceased, Lao Ma, was very popular, honest and loyal. Neighbors said he never offended anyone."
The old director said: "There is no need to rape him in revenge. It is simply inhumane."
A few days passed and a case report meeting was held. Bao Zhan's evidence team made new progress. Hua Long and Su Mei did not find any clues. Professor Liang praised Bao Zhan and criticized Hua Long and Su Mei at the meeting.
The painting dragon is holding a cigarette in his mouth and looks unhappy.
Su Mei said: "This kind of abnormality is very rare. Where can I find it? I have looked at criminal investigation files from the past 10 years and there is no such thing."
Professor Liang said: "Expand the scope and check within 20 years."
A police officer thought for a moment and said: "My mother works in the court and is now retired. Once, my mother told a story about a sexual perversion case."
In the 1980s, a sexual pervert appeared in a township under the city's jurisdiction. This man was in his 40s and had a wife and children. His relatives, friends and neighbors all had a good impression of him and agreed that he had a gentle personality and was a good person. This pervert specialized in sexual intercourse.
He molested an elderly widower who lived alone in the village. He sneaked into the home of an elderly man who lived alone late at night, coerced the elderly into submission, and forcibly serviced the elderly with his hands and mouth until the elderly ejaculated. It was painful for an elderly man in his seventies or eighties to ejaculate once, but it was not good for his face.
He didn't dare to speak out. So this pervert succeeded repeatedly, committing crimes for several years, and ordinary people didn't know his ugly face.
Professor Liang asked: "Where is this person now?"
The police officer replied: "He was later accused, and he was shot to death just in time for the severe crackdown in 1983. When we paraded him through the streets, there were huge crowds of people on both sides of the road. I was still young at that time, and my entire childhood was ruined by this pervert."
Bao Zhan's evidence team found the deceased's bloody clothes in a pile of sand near the Stone Sculpture Park, not far from the body. Judging from the scene, the murderer casually broke off a branch and used the branch to poke the deceased's bloody clothes into the sand.
Heap and then buried. There were also traces of the murderer's high-heeled shoes in the sand pile, but no traces of bicycle tires were found, which means that Lao Ma's bicycle did not enter the park and should have been parked outside. It has not been found yet. Bao Zhan left it at the scene according to the
He made wax and plaster models of the shoe prints, and then conducted investigations in shoe stores and shoe and hat markets in the city. He endured the disdainful looks of the clerks and purchased dozens of pairs of high heels that matched the shoe prints on site.
Carefully comparing the anti-slip texture of the sole and the subtle features on the edge of the heel, we finally identified the murderer
Wearing a pair of Korean-style red fish-mouth patent leather high heels.
Bao Zhan took out a pair of high-heeled shoes with careful movements, as if they were fragile glass slippers. He showed them to everyone and said, "The murderer wore these shoes!"
Su Mei took a look at the shoes and said, "These shoes are very cheap, costing 50 yuan at most."
Professor Liang said: "Xiao Bao, how are you sure the murderer was wearing red high heels?"
Bao Zhan said: "There are three types of shoes on the market: red, white, and black. The red ones sell best."
Hualong said: "Now we have found the glass slipper, but where is our Cinderella?"
The old director said: "Yes, finding the owner based on the shoes in the vast sea of people is like finding a needle in a haystack. Next, how should the special case team carry out the investigation, and where should the breakthrough in the case be opened?"
Bao Zhan said: "Extract shoe prints, make models, and find identical shoes. Current criminal investigation technology can determine the murderer's height, weight, walking posture and even age based on the footprints."
Professor Liang said: "However, the murderer is a transvestite, so the data obtained may not be true and reliable."
Shoe prints at crime scenes are divided into two types, one is plane traces and the other is three-dimensional traces.
Shoe prints left on roads or cement floors are flat traces, while shoe prints left on mud or sandy ground are three-dimensional traces. No matter what kind of traces are left, inspection and analysis technology can be used to understand the physical characteristics of the criminal suspect.
When a criminal commits a crime, he must move around the scene. Whether he is barefoot or wearing shoes or socks, he will leave traces on the ground. Examining the footprints on the scene can help determine the case and the criminal's shape, focus, walking posture, and the way to enter and escape the scene.
Route, speed, load-bearing method, etc. provide basis and provide clues for hunting down criminals.
After scientific analysis of the shoe prints, it was initially determined that the murderer was about 30 years old, weighed about 110 kilograms, and was between 165 centimeters and 170 centimeters tall.
Professor Liang encouraged Hualong not to be discouraged and to continue working hard. After overt and covert investigations, Hualong's visiting team finally got new clues.
The Stone Sculpture Park where the crime was discovered is located in a remote area. Most of the people who usually come here for leisure walks are middle-aged and elderly people. The park has been unmanaged for a long time and there are no street lights at night, so after dark, there are very few people in the park. However, I don’t know
Since when, every evening, some prostitutes stand on the street soliciting customers, and their clients are middle-aged and elderly people. After negotiating the price, they conduct sex transactions in the grass and rockeries in the park. Since the murder occurred
, the prostitution phenomenon in the park disappeared for a time, but it has resurfaced in the past few days, and prostitutes have reappeared on the roadside of the park to solicit business.
This clue attracted great attention from the special case team. Could it be that the deceased, Lao Ma, was drunk and soliciting prostitutes, and was killed because of prostitution or a verbal dispute?
However, this also raises several new doubts. Lao Ma is not a prostitute but a prostitute. Does Lao Ma have a special hobby?
The special case team analyzed that the women on the street were probably men disguised as women, and they were men cross-dressing for prostitution.
If it was a man prostitution, why didn't the middle-aged and elderly customers see it through? How would they accept it if they learned their true identity?
The murderer may be a man who cross-dressed as a prostitute. In order to figure out the matter and prevent alerting the snake, after careful research, the police made a major decision-the old director and Professor Liang personally went out, put on civilian clothes, and pretended to be...
The prostitute goes to investigate and obtain first-hand information.
Xiaocheng police dispatched dozens of plainclothes police officers to strictly control the stone sculpture park and secretly protect the safety of the old director and Professor Liang.
The old director said: "Professor Liang, thank you for your hard work. There are not many elderly people in our bureau, and the scouts are all young people. The best candidates for this job are the two of us. There is nothing we can do."
Professor Liang said: "I usually direct the investigation work behind the scenes, but this time I am taking the lead. To be honest, I am a little excited!"
At the beginning of the lanterns, the streets near the Stone Sculpture Park are bustling with traffic and people. Several women with heavy makeup stand on the roadside. As long as middle-aged and elderly men walking pass by them, they will step forward to solicit business and hold hands after making a deal.
Entering the park, Professor Liang and the old director worked separately. They both carried specially designed mobile phones. As long as they pressed the 1 button, they could notify the nearby police to make an arrest.
Professor Liang rocked his wheelchair and pretended to be tired and stopped on the roadside to rest. He noticed that the lovers in love on the park benches, the sanitation workers sweeping the streets, and the college students carrying schoolbags were all policemen in disguise, responsible for covert protection.
.
Professor Liang relaxed, lit his pipe, and quietly waited for the prostitute to take the bait.
Suddenly, Professor Liang was tapped on the shoulder. Looking back, he saw a tall woman with curly hair standing behind her. She asked with a smile: "Old man, are you having fun?"
This woman's voice was a little rough, and she had an Adam's apple. Professor Liang could tell at a glance that she was a cross-dressing man.
Professor Liang asked blankly: "What are you playing for?"
The man said: "It's very cheap. Masturbation is 50 yuan, and oral sex is 100 yuan."
Professor Liang turned his head and pretended to be angry and said: "I won't play."
The man said: "Do you want this?"
The man made an obscene gesture, holding the thumb and index finger of his left hand in a circle, and thrusting the index finger of his right hand into the circle.
Professor Liang sent this person away. The person's physical characteristics did not match the suspect. After a while, Professor Liang's eyes lit up. There was a young girl wearing a white miniskirt, black stockings, and red high heels standing in the park.
The back view was very charming. Professor Liang's heart was beating fast. He found that the shoes on the girl's feet were exactly the same as the high heels worn by the murderer. He rocked the wheelchair, walked over, coughed a few times, and the girl turned around. Liang
The professor saw that her face was extremely ugly, with thick eyebrows, big eyes, a sharp mouth and monkey cheeks. She also wore a scary amount of makeup, and the perfume on her body could make people faint.
Professor Liang hesitated for a moment and asked, "Hey, are you in business?"
The girl spoke, with an unusually high-pitched voice, as if she was squeezing her throat deliberately. She said, "What are you doing, you weird uncle, how did you know that I am in this business?"
Professor Liang said: "I heard from my neighbors that you can play in this park. This is also my first time here."
The girl pushed up the wheelchair and said coquettishly: "Uncle Wei, you are satisfied with my service package..." At this moment, the park was in chaos. The old director pretended to go back on his word after negotiating a price with a prostitute, but the prostitute actually
He forcibly dragged the old director to the woods in the park. The plainclothes policemen who were lying nearby ran over and held her down. The other prostitutes fled in all directions and became a mess. Some people panicked and jumped into the ditch, and there was another who was wearing a buttocks
The prostitute wearing a skirt climbed up a tree, attracting crowds of people on the roadside to watch. No matter how much the police tried to persuade her, the woman refused to come down.
A member of the public used a flashlight to shine on the woman in the tree, and two police officers eagerly tried to climb up the tree and pull her down.
The woman cursed loudly, with a loud voice that sounded like a man's voice. After a while, the man couldn't hold on any longer and jumped down from the tree. The police came forward to subdue him.
In the chaos, everyone discovered that Professor Liang was missing!
Hua Long rushed to the scene, furious, grabbed a police officer in charge of security protection, waved his hand and slapped him in the face, and cursed: "Damn, he knew how to protect your director and lost our Professor Liang. If he
There's something wrong, I'll blow up your public security bureau! Find me quickly, what if you meet a perverted murderer? Alas... the old man is more dangerous than good."
