On December 2, the Central Organization Department and the Central Propaganda Department announced the results of the selection of "the most beautiful civil servants", and Lin Yan, the squadron leader of the first squadron of the criminal police detachment of the Qingdao Municipal Public Security Bureau in Shandong Province, and the first-level supervisor of police technology, was on the list, and was the only one in Shandong.
In addition to the "most beautiful civil servant" who was awarded this time, Lin Yan is also a senior engineer of psychological testing and document inspection in the Technical Department of the Criminal Police Detachment of the Qingdao Municipal Public Security Bureau, an academic leader of psychological testing technology of the Qingdao Municipal Public Security Bureau, a young talent in criminal technology in China, a young talent in criminal technology in Shandong Province, a model talent in Qilu Public Security, and a member of the Psychological Testing Committee of the China Association of Forensic Science and Technology.
Lin Yan has received many meritorious awards, and won the honorary titles of Qingdao March 8th Red Banner Bearer, Shandong Province Female Workers Meritorious Service Pacesetter, and "Qilu Pioneer Police Officer" of the provincial public security organs.
What is the story behind this gentle and dignified female police officer?
"Mind Reader"
Lin Yan adheres to the investigative polygraph route, a small multi-channel tester has been fully developed and amplified by her to amplify the hidden information detection function, she never easily let go of any criminal suspect, and actively searches for corpses, finds physical evidence, finds the scene, finds the motive, and finds the relevant people in the case in the process of case investigation, and the magical function of the multi-channel tester is fully exerted, so that the investigation work that is stuck in the bottleneck can be seen in the clouds.
Between 2015 and 2018, three adult men disappeared in a city, and the suspected target pointed to the same person, but due to the lack of evidence, the case has never been solved. In 2019, the suspect only admitted to killing 2 of them after arriving at the case, but refused to admit guilt to the case of another missing person, saying that the missing person was taken away by others and his whereabouts were unknown. If the body is not found, the murderous demon cannot be punished, and the case is deadlocked. Lin Yan was invited to test the suspect, and through the test, it was determined that he killed the person in the car, that there were no other accomplices, and that the bodies were all buried in two areas of his family's yard. The test put a huge psychological pressure on the suspect, the police successfully found all the bodies, and also broke another murder case, and the murderous demon was finally severely punished by the law.
In April 2019, a corrupt female body was found in an ancient well in a commercial street in a district of Qingdao City, and after investigation was found to be Ma Mou, who disappeared three years ago, the Qingdao Municipal Public Security Organ filed a case for investigation. After the suspect arrived at the case, he refused to confess to the fact of the murder, and the scene where the two people who confessed met did not meet the conditions for the murder. Lin Yan tested it, exposed his lies in time, and discovered the whereabouts of key physical evidence such as murders and dismemberments, as well as crime tools and mobile phones. According to this, the technician immediately surveyed the scene and successfully obtained the DNA of the deceased from the scene.
From scratch, from dark to bright, Lin Yan has made the perpetrators appear in their original form through her work, allowing hidden evidence to surface, and playing a key role in the review and litigation of the case.
Lin Yan, as the main researcher, conducted research on micro-reaction psychological testing technology in the country. As early as 2011, Lin Yan's scientific research team established the country's first micro-reaction laboratory, which incorporated micro-expressions, micro-movements, micro-semantics, eye movements, pupils, voices, skin temperature and other indicators into the research system, and established the research concept of non-physical contact polygraphy.
Lin Yan combined micro-reaction psychological testing technology and psychological testing technology to form a double-test working mode in actual combat, conquered many test blind spots, and achieved outstanding performance in actual combat, and the accuracy of actual combat verification exceeded that of multi-channel testers.
In 2015, Lin Yan pioneered the introduction of three-dimensional map street scenes into psychological tests in the investigation of a kidnapping and murder case, and she searched a 25-kilometer radius to successfully find the ashes of the victim. Lin Yan's innovative move to add foreign map testing methods to new technologies has been highly praised by the industry.
The process of psychological testing seems smooth and unremarkable on the surface, but in fact, each test faces unpredictable challenges. However, for the expectations of the victims and their families, for the sacrifice of comrades-in-arms, and for the fairness and justice of justice, Lin Yan has never flinched.
Lin Yan had tested the two main suspects in the kidnapping and murder case, which were two suspects with strong anti-investigation capabilities. They had premeditated the murder of their accomplices to protect themselves and attempted to escape from prison by means of an explosion. One has a fierce look, one is cunning and cunning, and from time to time he shows a defiant look. When the test was near the end of the test, he knew that Lin Yan had found the location where they buried the bones, and threw a fierce and hateful gaze at her, and the two of them directly confronted each other for more than 10 seconds, and finally ended with the measured person's gaze fleeing.
Prototype of the movie "Hunter of Hearts" trilogy
On April 16, 2021, the trilogy of excellent public security film "Hunting Heart", based on a real case, was released nationwide, and the prototype of the film was Lin Yan, a psychological testing technical expert of the criminal police detachment of the Qingdao Municipal Public Security Bureau, and his team.
Lin Yan has been engaged in forensic technology since 2002, using psychological tests to assist in the investigation of criminal cases. "In layman's terms, it is a lie detector, which cannot be used as evidence in China at present, but it has a great effect on the investigation of the case." Lin Yan said that psychological testing mainly has two parts of the function, one is lie detection, including excluding suspects and finding real criminals; Another function is to find physical evidence, through conversation, from the mouth of the suspect to find the secret hidden in the depths of the heart.
At the end of 2010, when the concept of "micro-expression" was proposed in the American drama "LIETOME", the practical application was still far from the interpretation of the American drama, but this concept stimulated Lin Yan's exploration passion for applying "micro-expression" to psychological testing. As the saying goes, people's hearts are unpredictable, which also makes it extremely difficult to master the "micro-expression" technology.
Lin Yan did not believe in this evil, she began to consult the materials, asked for advice, and explored the development of "micro-reaction" technology and should have difficulties. It has overcome many blind spots such as micro-expression, micro-action, micro-semantics, sound, eye movement, etc., designed and produced automatic tracking probes for eye movements, as well as automatic collection and analysis of eye movements, pupils and many other appropriate software, creating the first real "big lie detector" in China and filling the domestic gap.
Using this technology, Lin Yan and her team have repeatedly solved major cases in criminal investigations. Among them, Lin Yan mainly tested more than 520 cases and tested more than 1,020 person-times. As a psychological expert in the province, he has assisted the public security organs in Weihai, Weifang, Yantai, Linyi, Dongying and other places to conduct psychological tests, as well as the coast guard, procuratorial organs, port public security, etc., and directly cracked more than 90 major and difficult cases such as homicide, explosion, arson, poisoning, and theft.
Experience: 8 minutes to measure the last name of the reporter's mother
According to earlier media reports, in the "micro-reaction laboratory", Lin Yan briefly demonstrated her work process to media reporters, which was the last name of the mother of a fellow reporter at the scene. She first asked the reporter to list a total of 10 surname ranges containing the mother's surname, and then put on various devices for the reporter to wear a "lie detector".
"Is your mother's surname Wang?" "Is your mother's surname Lee?" ...... Lin Yan first asked the 10 surnames one by one, and in the process, in addition to looking at the monitoring data on the computer, she also kept raising her eyes to observe the reporter's expression change. The reporter's answers to these 10 questions were all "no", and there was no change in the expression. Then in the second round, Lin Yan only picked 4 surnames to ask questions repeatedly, and disrupted the order to repeatedly ask the same question, and the reporter who was tested still calmly answered "no". In the 8th minute, Lin Yan showed a smile on her face, she already knew the answer, and then accurately said the last name of the reporter's mother.
"You feel like you haven't changed, but your test metrics are different, and whenever I ask about your mother's last name, you have a metric that's different from the others. Another time when I asked you, you had a slight expression of impatience on your face, which showed that you hated me asking you this last name. Lin Yan said that through these comprehensive analyses, it is not difficult to draw conclusions.
"In life, we often have times when we have not made mistakes and are nervous for psychological reasons, will this be misunderstood?" The reporter asked.
"Don't worry about that." Lin Yan said that although this type of tension will also be reflected in the indicators, this reflection is normal in her eyes and can withstand testing. She can often rule out the suspicion of the person being tested in her work, obviously not this person did it, but when she was tested, she was nervous and trembling, her heart beat faster, etc., and even people with poor psychological quality would be nervous to faint. But after testing, without doing this, there are no residual memories in your brain and will not be detected.
Reporter: What do you think my eyes represent? (At the end of the interview, the reporter and Lin Yan looked at each other)
Lin Yan: It should be for me to guess what you are thinking at the moment. You should be asking me about something that has little to do with my work and want to know more about me.
Reporter: Indeed, how did you judge that?
Lin Yan: Generally as long as I talk to others for three or five minutes, and observe carefully, I can basically guess the other person's mind, which is a work habit I have developed for many years.
Reporter: Will you play the "killing game" and so on, and will you see your husband hiding a "small treasury" at home in your life?
Lin Yan: I don't play the 'killing game', but I guess if I play, I should belong to a more powerful player, because when I play cards with others, I can basically guess whether the hole cards in their hands are really good or fool people. In addition, work and life must be separated, and I generally do not bring lie detector testing into my life. The only place in life where you can use lie detector testing is when shopping, and my bargaining success rate is generally relatively high.
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Source: Shandong Chang'an Network