Voice of Chongqing, July 24 "For the criminal police, what is the most cruel and unwilling to face the truth? That is, the murderer has passed away, and he is still struggling to trace his traces in this world. This sentence came from the mouth of Tang Rui, a serious criminal policeman.
Tang Rui is currently the deputy head of the homicide investigation detachment of the Criminal Investigation Corps of the Chongqing Municipal Public Security Bureau. Since joining the public security work in 2001, he has always been on the front line of homicide investigation, guiding and participating in the investigation of hundreds of major cases. Four years ago, he led a special operation to tackle the backlog of homicide cases, and successfully cracked 82 homicide cases, including two ministerial cases. He organized and commanded the Beibei 2003 Ran Mouqun Murder Task Force, and was awarded the first-class collective merit of the Ministry of Public Security.
Small probability inference, digging the truth, reverse thinking, playing cards to determine the winner
In Tang Rui's view, every crime scene is an unfinished script that needs to be written by himself. His reverse thinking habits, winning often come by surprise. All hypotheses with a high probability are denied, even if only one hypothesis with the lowest probability remains, which may be the truth.
Tang Rui once investigated a case, and the ending was reversed. A deceased man was lying on the sidewalk, with stab wounds on his body that appeared to have fallen from his window. In his home, the blood was stained and shocking. What is puzzling is that the bedroom door of the home is locked, and the window air conditioner in the bedroom is mysteriously missing, leaving only a large hole under the window where the air conditioner is placed. At first, the task force determined that this should be a serial crime of murder followed by theft, and the murderer stole the air conditioner after killing the victim. According to this line of thinking, the case reached a dead end. Tang Rui made an in-depth analysis and put forward a subversive hypothesis: the victim did not die immediately after being slashed by the murderer, but with a tenacious will, he pushed the window air conditioner out of the window, and then struggled to the hole of the air conditioner next to the window to call for help, and unfortunately fell to his death.
The air conditioner is only a tool for the victim to call for help, and the victim's death is not necessarily related to the air conditioner. This assumption changed the direction of the investigation, and soon, the truth was doxxed and the suspect fell into the legal net. The "disappeared" air conditioner was also recovered at the home of a nearby waste picker under the visit of the police. Tang Rui relied on his keen judgment to find the right answer and wrote a just ending for this unfinished "script".
Technology and traditional investigation complement each other, showing the new combat effectiveness of criminal investigation
Big data thinking endows strong energy to forensic technology, drives the extension and expansion of inquest work with investigative thinking, and promotes the integration of technical resources and the innovative application of investigative research and judgment methods. Tang Rui is well aware of the importance of forensic science and technology and big data investigation. However, he also attaches great importance to the traditional mapping work. He firmly believes that every reconnaissance method has its own unique value, and only by organically combining them can we bring into play our brand-new combat effectiveness.
When solving a particularly vicious homicide case, he comprehensively used big data investigation and investigation and investigation methods, video tracking relied on investigation and visits, tracking and chasing through four provinces, traveling more than 5,000 kilometers, and finally successfully arrested the suspect hiding in a remote factory under a pseudonym in Shantou, Guangdong, and the case was solved.
"I am the suspect", empathy, the secret of winning the interrogation breakthrough
"Suppose I am a criminal suspect, what would I do in order to commit a crime? Revisiting the suspect's course of action makes it possible to capture the evidence points to the greatest extent. In the process of homicide investigation and interrogation, Tang Rui often empathized like this, and fully communicated and discussed with the police on the case before making a judgment, listening to different points of view. He once investigated a series of robbery and homicide cases - the suspect had a strong sense of anti-investigation and was silent at the beginning of the interrogation. In this offensive and defensive battle, Tang Rui discovered the suspect's diary, and by reading the words in it, he walked into the inner world of the suspect step by step, accurately analyzed the suspect's psychological weaknesses, skillfully used interrogation skills, and fought all night long, breaking through the psychological defense line that the suspect had built for more than 30 years in one fell swoop, so that the murderer who had murdered and absconded from his hometown in Hebei in the 80s of the last century and was involved in many murders confessed to the law.
With the trial as the center, we will consolidate legal evidence and achieve a perfect closed loop
Tang Rui's investigation work is centered on the trial, strictly follows the legal procedures, and strives to ensure that every piece of evidence can withstand the test of the court. He often said: "Evidence is the cornerstone, and every piece of evidence we collect must not only avenge the victim's grievances, but also be responsible for the criminal suspect." In the process of handling cases, he strictly controls every piece of evidence to ensure its legitimacy, objectivity and relevance.
The criminal police of serious cases adhere to the reverence for life; Justice is given to the deceased, and peace is given to the living. They are the light chasers in the darkness and the defenders of justice. This perseverance is a responsibility, a responsibility, an indelible pursuit of the truth, and the deepest love for the people.
(Voice of Chongqing, Zhou Luhan, Photo courtesy of the Criminal Investigation Corps of the Chongqing Municipal Public Security Bureau)