1.12 The robbery case with a large gun is a big stone in the hearts of all the police officers of the Provincial Public Security Department, especially the Jiangjun City Public Security Bureau. In the 24 years since the incident, the police have never given up the search for the suspect. This purpose has always been implicit in the unified action to rectify public order that is held at the end of each year.

Because the huge amount of 1.8 million 24 years ago is nearly 10 million compared to now. Judging from the suspect's behavior of committing the crime again after only three years, it is likely that he was contaminated with vices such as gambling or drug abuse, which is why he squandered the stolen jewelry in such a short period of time. So after committing four crimes intermittently for more than ten years, there is no trace of the suspect, and the police will naturally not miss the people involved in gambling and drugs who are arrested at the end of each year when they rectify social security, hoping to find clues about the suspects in the 1.12 case.

"Brother Jia, where do we start?"

"Start with the urban area, with the center road as the boundary, I am east and you are west. Referring to the eight characteristics of the suspects in the 1.12 case that you have just summarized, all the people arrested in this operation by each substation and police station will be screened one by one.

As long as it is in line with the age group between 37~45 years old, men with small stature should not be let go easily. Especially those involved in drugs and gambling. Not only do they have to collect their fingerprints and DNA samples, but they also have to collect all their detailed information. ”

"Okay, I see. ”

In fact, what Jia Wei didn't know was that as early as after the National Day, the 1.12 task force of the provincial department had been launched again. The reason why the task force was chosen to start the work of the task force during this time period was also to take advantage of the unified deployment of the province to crack down on organized crime and eliminate pornography.

To this end, the provincial department task force has set up a DNA breakthrough group, a fingerprint comparison group, a video group, a physical evidence group, and a research and judgment team composed of criminal investigation experts from the provincial department.

Initially, almost all of the members of the task force pinned their hopes on the DNA breakthrough team. Because with past experience, since the DNA information of the suspect has been obtained, it should not be difficult to find the suspect out of the vast sea of people with modern scientific and technological means.

Unexpectedly, the DNA sample information of a man and a woman extracted from the pair of knee pads, children's wire pants, and the high-voltage rubber insulated wire left by the suspect when he committed the fourth crime was limited by the relatively backward level of science and technology at that time, and only the 17th seat of DNA information could be analyzed. So much so that the range of suspicion reached hundreds of people, so it had to be temporarily abandoned at that time.

The current dilemma facing the DNA Breakthrough Team is how to re-extract the biological samples of suspects from the physical evidence left at the crime scene and further expand the sequential seat of DNA information, so as to narrow or even designate suspects.

After several failed attempts, the DNA breakthrough team worked tirelessly to finally achieve a critical breakthrough. Successfully expanded the number of seats in the order of suspect DNA information from the original 17 to 36 seats.

It is important to know that there are 23 pairs of chromosomes in the human body, which is 46 groups. It can reach 36 groups, in other words, as long as 18 pairs of chromosomes can be compared, the identity of the suspect can basically be 100% determined.

However, the DNA breakthrough team finally encountered another problem, because after the suspect committed the third and fourth crimes, the DNA information collected by the task force at that time was too extensive and not very certain, so in the end it could only give a not very positive answer - the suspect is very likely to be a man surnamed Xu in Jiangjun City.

At the same time that the DNA breakthrough team was working day and night, the video team also selected more than 20 police officers from all over the province, although they were not experts, but had outstanding performance in their respective jobs, and they also repeatedly watched the video materials left by the suspect when he attempted the crime for the fourth time day and night.

Finally, the video group has also made a breakthrough. In that blurry video, they finally zeroed in on a man who appeared on the street near the crime scene three times in a row, wearing a yellow shirt, black trousers, black high-top shoes, and his height and age seemed to match the characteristics of the suspect previously determined by the crime.

Due to the blurry video, it is not possible to see the clear features of the suspect's face. The task force invited the most famous portrait experts from the provincial department to compare the images of the suspect in the video, hoping to restore the suspect's facial features through painting.

Immediately, two groups of people were separated, with the copied video materials and the portraits copied by portrait experts, and one group went to the Central Academy of Fine Arts, and asked the professor there to help make a wax figure of the suspect's head. A group of people brought in a sculpture expert to create a realistic sculpture of the suspect using a combination of portraits and video footage.

Finally, combined with the wax figure made by the professor of the Central Academy of Fine Arts, the sculpture made by the sculptor, and the image drawn by the portrait expert, the three-in-one synthesis was combined into a high-definition photo of the suspect's facial features, and it was entered into the police face comparison system in time.

What no one expected was that when the DNA breakthrough team, the video team, and the physical evidence team were in full swing, when the suspect committed the crime for the second time, the complete but unclear fingerprint left in the homemade explosives, and the fingerprint comparison team that went to the Ministry of Public Security for help came with an exciting news.

Although the fingerprint was left by the suspect when making the explosives, because the suspect's finger was operating at the time, that is, in the process of exerting force, there were overlapping and interference marks caused by squeezing, dragging, sliding, etc., causing the fingerprint to appear blurry and difficult to identify. However, the fingerprint experts of the Ministry of Public Security still successfully obtained the comparison results of 12 identical points with rich experience.

As we all know, fingerprints are one of the unique characteristics of a human body, and there are absolutely no two identical fingerprints in the world. Therefore, not to mention that you can compare 12 identical points, even if you can only get 6, it is enough to determine the identity of the fingerprint owner. This is already a well-established fact in academic circles around the world.

Therefore, the results obtained by the fingerprint comparison group clearly pointed to a man surnamed Xu who was born in Pinghe and lived and worked in Jiangjun City.

At this point, the 1.12 special case team of the provincial department, which had already done sufficient preparatory work, began to collect information on suspicious persons who were arrested in this unified rectification of social order operation and conformed to the physical characteristics and age of the suspects obtained by the 1.12 special case team in the early stage.

"Team Ling, has the provincial department already started the investigation of the 1.12 armed robbery case?"

"yes, it started two months ago. ”

When Jia Wei heard the conversation between Qi Zhibin and Ling Zhan, he raised his hand expressionlessly, scratched his scalp, and said, "No wonder Team Ling agreed so happily yesterday." ”

"How far have you got?"

"It's all been collected, just waiting for further screening. ”

"How many people have been collected?"

"Twenty-four. Qi Zhibin handed the thick stack of papers in his hand to Ling Zhan and said, "This is the detailed information of the twenty-four people we have screened. ”

"Now the task force has determined that the identity of the suspect is a man surnamed Xu. While looking at Ling Zhan, he asked, "Is there a qualified person surnamed Xu among them?"

"There is one. Qi Zhibin stretched out his hand and flipped through the stack of papers in Ling Zhan's hand twice, pointed to a person's name and said, "This is the one." ”

"Xu Qiantong?" took a serious look at the details of this person: male, forty-four years old, originally from peace, now living in 505, Building 30, Fujia Garden, Jiangjuncheng Development Zone, married and unemployed, with good economic status, and likes to gamble. couldn't help muttering: "Why is this name only one word different from the name of the suspect determined by the provincial department task force, not to mention the age is very similar, and the place of household registration is also the same as the suspect?"

Hearing that the person they found was not the suspect identified by the task force, Jia Wei and Qi Zhibin were inevitably a little disappointed. However, after hearing Ling Zhan's later words, Jia Wei asked without thinking: "Team Ling, is the suspect identified by the task force named Xu Qian'an?"

"You...... How do you know?"

Because Xu Qiantong has a younger brother named Xu Qian'an, who also lives in the development zone, but he is not in the same community as Xu Qiantong. And....... ”

Seeing that Jia Wei wanted to speak and stopped, Ling Zhan immediately asked, "What?"

"Director Xu of our Municipal Bureau Office and they still haven't come out of the five suits, to be precise, they are cousins in the four suits. ”

Xu Qiantong, Xu Qian'an, Xu Qianxiang, these three names flashed in Ling Zhan's mind, and then he took the materials compiled by Jia Wei and Qi Zhibin, turned around and went out without saying a word.