Before reading this article, we sincerely invite you to click the "Follow" button, so that you can continue to push such articles for you in the future, and it is also convenient for you to discuss and share, your support is the driving force for us to insist on creating~
Text|A pedestrian who wants to break his soul
Editor|Pedestrians who want to break their souls
preface
At the turn of the 20th century and the 21st century, such a group of people appeared in China's police circles.
They have outstanding performance in investigating and solving cases, they are observant, and they can always find the truth of the case with an entry point that others cannot imagine.
After almost all the major and important cases in their hands have been solved, as long as there are important murders, they will definitely stand up and seek justice for the victims.
And what we want to introduce today is Choi Do-shik, who is known as the modern version of Di Renjie in the police circle.
He is the first generation of criminal technical police on the mainland, the chief expert in ballistic trace identification, he has won the famous "August 1 Medal", he has handled more than 7,000 traces and physical evidence, more than 1,200 cases and never missed a shot.
Choi Do-sik's life can be said to be legendary and bumpy, let's get closer to this police legend and see his magical story.
A bumpy childhood
In 1934, Choi Do-shik was born into a Korean family at the mouth of the Meihe River in Jilin.
When Choi Do-shik was four years old, his father died of illness, and the collapse of the family's only pillar made the family more difficult, and his mother ruthlessly left the house with her children.
Grandpa watched the child in front of him lose his parents in a short period of time, so he dragged his elderly body to find change to support the family.
At that time, the mouth of the Meihe River was shrouded in the poisonous pressure of the Japanese invaders, and the people were not allowed to eat white noodles, and once they were discovered, they were immediately severely punished, and grandfather secretly hid white noodles in order for Cui Dozhi to be able to eat.
But the good times did not last long. One day, the Japanese invaders rushed into the house like robbers, violently pushed Choi Do-shik away, rummaged around, and found White Face in a hidden corner.
A man dressed as an officer gave an order, and the Japanese invaders punched and kicked his grandfather. At that time, Choi Do-shik hid in the corner, looking at his grandfather with a blue nose and a swollen face, he was very scared.
The ignorant Choi Do-shik does not understand why foreigners can flaunt their might on the soil of our country, and how much he hopes that the homeland he lives in is peaceful and free of war. Later, the Eighth Route Army came here to drive away the Japanese invaders, and Choi Do-shik looked at the soldiers in gray military uniforms in front of him, and his heart rose in awe, and the appearance of the Eighth Route Army gave Choi Do-shik hope and the goal to pursue.
Time flies, this year Choi Do-shik was 17 years old, just in time for the Korean War, the national leader knew the truth of the cold lips, so he sent troops across the Yalu River to aid North Korea, and his childhood experience made Choi Do-shik not want to be invaded by foreign enemies again, and because of the goals set for him by the Eighth Route Army, he resolutely joined it.
During this period, a comrade-in-arms gave him a book called "Lovely China", "Great, glorious and correct party!" You are the hope of the Chinese nation, you are the savior of the Chinese people, and under your bright red banner, the Chinese people march forward with their heads held high and courageously. ”
The affectionate words and passionate words ignited the love for the motherland in the young man's heart, and at the same time, the national grandeur presented by the party leadership also made the young man yearn to become a member of the party.
After the end of the War to Resist US Aggression and Aid Korea, Cui Daozhi transferred to work in the Heilongjiang Provincial Public Security Department, where he ushered in a new challenge and his own glory.
And the first light came from an inconspicuous telephone line.
The first test of the cow knife
On this day, the Public Security Department came to a case, the staff found a disconnected telephone line at the crime scene, the person in charge of the case believed that it was clipped by the murderer with pliers, and when Choi Do-shik saw the cut of the disconnected telephone line, he fell into deep thought.
He picked up the telephone line and carefully observed it repeatedly, carefully groping the cut of the telephone line with his hand. Logically, if it is clamped by pliers, there will be a bumpy touch at the incision, but the cut of this phone line is very smooth, which makes Choi Do-shik begin to doubt the judgment of the person in charge.
Of course, he also knew that these findings could not be used as the basis for judging the case, and there was evidence to solve the case, so he placed the telephone line under the microscope to observe, and found that the telephone line presented by the microscope could see a small hair thin gap, which shows that the telephone line should be cut by a very sharp weapon.
So, what sharp weapon can be so sharp, Choi Do-shik thought of scissors.
After drawing a conclusion, Choi Do-shik immediately told the person in charge of the new clue, and the person in charge found a pair of scissors at the crime site. In order to confirm that this scissors was indeed the one who cut the telephone line, Choi Do-shik began to experiment with cutting the telephone line for comparison.
After five days of repeated checks, Choi Do-shik finally determined that the scissors were indeed the one who cut the telephone line, followed by inquiries from various stores in the city about the sales of this type of scissors, and finally with the cooperation of the police and the public, the murderer was finally arrested.
In the process of investigating the case, the leaders of the Public Security Department saw Choi Do-sik's talent in investigation and his investigative attitude of daring to guess and carefully collect evidence, so they recommended him to study at the First People's Police Academy. And Choi Do-shik did not live up to the expectations of the leadership.
During his time in school, he developed a strong interest in reconnaissance techniques and studied hard, and finally graduated with honors. You know, at the turn of the century, the mainland was relatively backward in investigation technology, and he was the first batch of criminal technology police in China, which is a very rare talent.
Nail breaks
In 1981, there was a murder in Mudanjiang City, Heilongjiang Province, when the police rushed to the scene, they did not find any suspicious physical evidence, the police had no choice but to carry the body back, see if the doctor can find any information on the body, after all, the body does not lie, the evidence found from it is the most powerful.
Sure enough, as the police expected, the forensic medical examination determined that the wound of the deceased was flat and thin, which shows that the fatal wound of the deceased was a knife wound, and the forensic doctor found half of the nail in the wound. The police judged that it should be the murderer and the deceased when the two sides had a dispute, and when the murderer stabbed the knife into the deceased's body, due to the deceased's violent struggle, half of the murderer's nails were broken in the fight and left in the deceased's wound.
Looking at the half-cut nails in front of them, the police made a difficulty, because the identification technology at that time was really backward, at that time, DNA technology had not yet been born, even if the police guessed that it was the nail left by the murderer, but the case still had no way to start.
At this moment, they thought of the Dinghai God Needle Cui Daozhi of the police circle, they clearly knew that once the case handled by Choi Do-shik could not be solved, the reputation of the criminal investigation Eight Tigers was not a waste, although the entry point of his case every time made people drop their jaws, but he could create magic in the impossible.
Choi Do-shik is really as they say, and his entry point is eye-opening this time. Because the clues that can investigate and collect evidence are really limited, Cui Daozhi also started with nails, but strangely, he did not hope for China's poor identification technology at that time, but found another way to cut in by observing nail lines.
You must know that no one in the history of Chinese police investigation has ever used to observe nail lines to investigate a case, but Cui Do-shik was the first person to eat tomatoes, which can be described as unprecedented and unprecedented.
He first observed the nail lines of the suspected killer, then he asked 200 students from the local police academy to cut their nails every 20 days, and he divided these nails into categories to observe the changes in each person's nails and the differences between them.
He made such observations for a year and a half, during which the people in the police station were puzzled by the operation of this police officer Di Renjie, observing nails can be observed for so long, it is just nails, what is there to see, and some people even began to doubt the authenticity of this sea god needle.
In the face of the doubts of the people around him, Choi Do-shik does not defend but does his own thing every day. As the saying goes, the truth is in the hands of a few, and this statement was once again confirmed by Choi Do-sik.
After a year of countless nail observations, Choi Do-shik finally let him find the clue. He found that each person's nail vertical stripes have about 130-140, and the nail lines of different people will not change over time, while the nail lines of different people are different.
After reaching this conclusion, he informed the police to collect evidence from the nails of several identified suspects, and he compared the nails of these suspects with the nails of the deceased's wounds.
Since then, the murder case in Mudanjiang City a year ago has finally come to light.
When people marveled at the police Di Renjie's alternative investigation methods, they were also impressed by his amazing patience, and for a whole year and a half, this technical police officer has been conscientiously observing and comparing in a real way, and this professionalism and dedication to the truth have amazed countless people.
And this case also opened up a new field in the investigation of cases, that is, to identify the identity and the murderer through nail lines.
And Choi Do-sik's detection methods are not only amazing in the laboratory, but also in the face of thermal weapons challenges.
The Bai Baoshan case
On 12 March 1996, seven homicide cases occurred in Beijing and Hebei, including attacks on police, armed robbery, and robbery of firearms and ammunition. From July to August 1997, three more armed robbery cases occurred in Xinjiang.
A number of robbery cases occurred in a row, causing a national sensation, and the state attached great importance to this case, listed this case as "China's No. 1 Criminal Investigation Case", and set up an investigation team with Xinjiang as the main battlefield to investigate.
This time, the police planned to use bullets to find guns and guns to find people, but because the investigation of this case was too difficult, the police leaders considered that if the general police began to investigate, it was estimated that it would take time and effort to achieve the expected results, so they handed over the case to Choi Do-shik to handle.
For the practice of finding guns with bullets, Choi Do-shik is a veteran in this area. According to the traces caused by rifling on bullets as thin as hair, the study of tens of thousands of bullets of various categories can identify which gun these sub-pops out from, which is a good trick for Choi Do-sik, an expert in ballistic traces.
However, the bullet this time has been deformed by a strong collision and squeeze after firing, so the ballistic traces have also lost their reference value, but this does not stump Choi Do-shik, who once walked in a rain of bullets.
Through his perception of the bullet, coupled with four days of continuous experiments and repeated verification, Cui Daozhi finally discovered that the cartridge casings left at the Beijing and Xinjiang crime sites came from a "Bayi-style" rifle, which he judged to be prisoners who were sent to Xinjiang to serve their sentences after committing crimes in Beijing.
Choi Do-sik's experimental results and speculations were immediately recognized by higher-level leaders, and the public security department immediately launched an investigation on this basis, and a week later, the criminal suspect Bai Baoshan was arrested, and the shocking "China Criminal Investigation No. 1 Case" was solved.
Of course, there are more than these two cases solved by the "Dinghaishen needle". In 2022, with half a bloody fingerprint, the murderer was identified, the silver series of rape and murder, and the Zhang Jun robbery series of murders. This pile is frightening, but in the face of Choi Do-sik's "golden eye of fire", there is nothing to hide.
epilogue
On May 25, 2022, Choi Do-shik attended the China Public Security Model Commendation Conference as a heroic model representative. At this time, Choi Do-shik had long passed the age of retirement, but in the face of reporters' interviews, he still expressed his dedication to the truth, his pursuit of investigation work, and his love for the party.
"I'm 88 years old and there's not much time left for me. But if the party needs me, the scene needs me, I go with my bag. ”