"You lied!" Recently, Liu Siqing, the detective of the first team of the Criminal Investigation Detachment of the Baoshan Branch of the Shanghai Public Security Bureau, quickly solved a "bizarre burglary case" during the "Summer Operation".
The door lock was violently broken, the room was turned into a mess, and the boss, who was the only one with the key, and his employees shared two rooms while on a business trip. Just as the police handling the case were about to start searching for clues about the crime, Liu Siqing discovered why there was no taxi record, but the mileage record of the taxi software increased that night? So Liu Siqing followed the clues and found the deleted taxi record, breaking the suspect's seemingly perfect "alibi". He captured the employee who accompanied the owner to report the crime on the spot, and recovered the stolen car above the water heater in the suspect's dormitory. More than 90,000 Hong Kong dollars in cash.
html On July 15, Liu Siqing, a "post-90s generation", told reporters from The Paper (www.thepaper.cn) how he "sniffs out" traces of criminals from the smallest details.Complicated case files, clues to be verified, scattered biological trace samples and on-site evidence... In Liu Siqing's view, these "samples" are the "keys" to unlocking the password of the case, and the "brain center" that analyzes these elements is In the "Liu Siqing Escape Studio" of the Criminal Investigation Detachment. On July 9, the studio was officially established. Before that, Liu Siqing had taught 20 grassroots investigators from 12 police stations.
Liu Siqing Studio The Paper reporter Xu Yijia Picture
Confirm the suspicion from the details, solve the "cold case" that has been buried for 30 years
The murder case must be solved, and those who escape must be pursued. During Liu Siqing's pursuit career, he spent a lot of time on tedious work such as information screening, data analysis, and case study, and tried his best to provide more accurate and comprehensive clues for his comrades.
Liu Xin, deputy captain of the Criminal Investigation Detachment of the Baoshan Branch of the Shanghai Public Security Bureau, told reporters: "I brought Liu Siqing up personally. During my work, I found that he seemed to have an innate ability to distinguish faces and looks. He The suspect can be identified from a large number of photos, so he was put on the hunt for a fugitive. "
Liu Siqing's work photo The Paper reporter Xu Yijia Picture
At the beginning of 2020, Liu Siqing followed his colleagues to a farmhouse in Baoshan for routine work. I visited the "eldest brother" of a fugitive named Qian. While chatting, he accidentally discovered an address book placed with old newspapers. When Qian's "eldest brother" wasn't paying attention, he quickly opened it and browsed, and was shown on the home page. A string of mobile phone numbers without a name attracted him. The letter "d" lightly marked with a pencil next to it made him suspicious, so he silently memorized the number.
After Liu Siqing searched the number through WeChat, he found that the WeChat user's avatar was a photo of an old man. "Although he has been on the run for 30 years and his household registration photo looked like he was young, I recognized him at a glance as the one we were looking for." Fugitive." It turns out that the "d" stands for "brother." This made him feel for the first time that the clues would not be sealed forever, and solving the "cold case" would give him a greater sense of accomplishment.
Locked in the fugitive for 20 years from the virtual identity of "Third Daughter"
Every time a battle is fought, a battle is summed up. Liu Siqing will inject the "Seven Strategies of Pursuing Fugitives" extracted from more than 500 fugitive pursuit cases into the "Fugitive Pursuit Laboratory", so that the overall criminal investigation police and the backbone of the pursuit of fugitives can come in with the "dead knot" to seek "new solutions."
Relying on the support of tactics and technological empowerment, Liu Siqing not only almost "chased" the fugitives in his jurisdiction, but also often helped the police in other provinces and cities to bring the murderers to justice. In March this year, Liu Siqing and his colleagues, under the guidance of the Criminal Investigation Corps, captured Chang, a fugitive who had been on the run for nearly 20 years after committing a crime in Yinchuan, Ningxia, in Juye, Shandong.
Due to the limitations of investigation technology at that time, neither the Ningxia police where the crime occurred nor the Henan police where he was registered have never been able to successfully capture Chang. This year, as police cooperation has become more convenient and investigation techniques have become more diverse, this backlog of cases has reached a breakthrough.
Ningxia police discovered that Chang and his wife had two sons and two daughters. One of the eldest daughters had recently been active in Baoshan, Shanghai, so they sent a request to the Shanghai Baoshan police for assistance in the investigation.Liu Siqing immediately began to analyze the case from the initial case file. He found that the "eldest daughter" who was active in his jurisdiction not only maintained daily interactions with other siblings, but also had close contact with the third sister "Wanwan". The initial household registration file clearly showed that there were only four siblings. How could Chang possibly have another daughter?
The doubt is the "key" to solving the case. Liu Siqing and his comrades conducted an investigation around the virtual identity of the "third daughter" and found that Chang's four children and the "third daughter" had made an appointment to "go shopping" in Juye, Shandong during the Spring Festival. The location was not in Shandong, and this abnormal situation immediately attracted the attention of the investigators. After conducting work, the Shanghai police determined that the "third daughter" was probably the fugitive Chang, and immediately reported the situation to the Shandong police. Finally, they successfully captured Chang in Juye, Shandong on March 14.
The "Fugitive Pursuit File" has been upgraded. Last year, 14 fugitives who have been absconding for more than ten years have been captured.
"It has the tenacity of old investigators and the drive of young policemen." Huang Leiyun, political commissar of the Criminal Investigation Detachment of Baoshan Branch of Shanghai Public Security Bureau, gave Liu Siqing Such an evaluation. In the investigation of backlogged cases, basic case files are the first-hand information to solve backlogged cases and detect fugitives. Liu Siqing, who is responsible for information research and judgment, is able to obtain a steady stream of analysis "samples" every day, relying on the complete "one escape and one file" support. In recent years, the Baoshan Public Security Criminal Investigation Detachment has exhausted its methods in "one escape, one escape". Based on the initial files, Liu Siqing and his comrades in the detective team expanded a large amount of information on the indirect persons related to the relevant suspects. Despite the complex workload, However, the upgraded "Fugitive Pursuit File" soon came into play, helping the fugitive pursuit team successfully capture a criminal suspect who had been absconding for 23 years in May last year.
Since 2022, the fugitive investigation team has established and continuously upgraded electronic files for more than 150 cases, which not only prevents the loss of paper information in basic case files, but also improves the efficiency of inquiries. Taking the bottom-profile identity pictures in electronic files as an example, Liu Siqing and his comrades repeatedly tested various image processing software to colorize and clarify the electronic materials, allowing "one escape and one profile" to achieve iterative upgrades. In 2023 alone, Baoshan police relied on the "Electronic Fugitive Pursuit Archives" to clear 4 backlogged cases and captured 14 fugitives who had been absconding for more than ten years.
