Li Donglin is very satisfied with Deputy Director Qin's attitude. Qingzhou City Public Security Bureau has a better grasp of this point.
Taking a deep breath, Li Donglin was highly concentrated. Although this case was relatively big, we couldn't rush the case. Five days was neither long nor short.
The most important thing about a case like this is that in such a tight scope, the key is to find clues about the suspect. As long as the identity of the suspect is determined, the only thing left is to find and arrest him.
Li Donglin turned to look at Lu Chuan.
"Lu Chuan, the scene is left to you. I don't ask you to be fast, but you must investigate carefully and not miss any relevant details. The other thing is the identity of the criminal suspect. If it can be confirmed during the on-site investigation, then No matter how good it is, the remaining thing is to track and capture these things, which is not difficult for us, can you understand what I mean?”
Lu Chuan nodded.
When he first joined the Major Crime Team two years ago, he was still a young boy and could only do some technical work, but now Lu Chuan is the deputy director in charge of criminal investigation of a district or county branch.
In addition to technical work, he also has other skills to control the overall situation, and the overall arrangements in the investigation of some cases are much better than before.
After receiving the task, Lu Chuan immediately made relevant preparations and conducted a second on-site inspection of the Dongfang construction site.
After Lu Chuan received the task, Li Donglin began to arrange work for others.
"Song Mingguang, you should lead a team here to investigate the surrounding surveillance and the inquiries of all witnesses to see if you can draw a portrait of the other party, or find some image data of the other party to determine the identity of the criminal suspect. .”
"Luo Qiang, you guys are responsible for coordinating with the Qingzhou Municipal Public Security Bureau to ensure that all entry and exit places are closed and under martial law, so that criminal suspects cannot leave Qingzhou with weapons."
"Yes!"
After receiving the order, personnel from all parties began to work non-stop.
Lu Chuan started to check some of his own equipment. When he came from the provincial department, he had already brought some things, but they were not complete. He communicated with Zheng Baode, the leader of the criminal investigation detachment here, and asked the on-the-spot investigation here. Come with the office staff.
"Hello, Director Lu. My name is Qin Jun. I am the director of the Health Office of the Criminal Investigation Detachment of the Qingzhou City Public Security Bureau. After the incident, we went to the scene to conduct an investigation and I will give you a brief report on the relevant situation."
After the incident yesterday, in order to quickly find the suspect, the Qingzhou City Police conducted an investigation on the scene. At the same time, they also checked all the surveillance data in the construction site.
Lu Chuan nodded. He had not seen the most detailed version of this information, so if the other party could introduce it in detail, coupled with his own investigation and verification, he would be able to find some clues.
"The surveillance camera inside the construction site captured the suspect, but he was wearing a hood and a hat. His whole body was wrapped, and he couldn't see any physical features at all."
While talking, he turned on his mobile phone and computer early this morning and played all the edited photos and clips from the surveillance cameras to Lu Chuan.
Sure enough, the other party's route last night could be clearly seen from the high-definition camera inside the construction site.
Because there were construction site personnel at night who had to handle cases, the door was not locked. After the criminal suspect came in, he directly attacked the personnel in front of the construction site platform without any hesitation. "Homemade weapons?"
The footage in the picture was very clear, and it could be seen that the weapon used by the opponent was not a self-sustained weapon. Lu Chuan recognized it at a glance as the opponent's homemade weapon.
Qin Jun nodded: "That's true. The weapons used by the opponent are homemade weapons, but the bullets used are the bullet trajectories used by ordinary May Fourth weapons. We have done analysis here."
Otherwise, staring at the screen and doing ballistic analysis at this time is basically useless. Since it is a homemade weapon, it will definitely not be able to find the way in.
It is impossible to lock the opponent's identity from the weapon, but if the opponent can control his own strength, it still has certain analytical value for related professions.
If the other party uses a homemade weapon, there are only two ways. The first is to buy it on the black market, and the second is to make it yourself.
If it is the first one, and the other party purchased the weapon, then it is very likely that by tracing the origin of the weapon, we can find relevant information about the other party's understanding, but if the weapon was made by the criminal suspect himself. Then it would be difficult to find the other party through weapons.
It is initially suspected that this weapon is more likely to be purchased, because if the other party can make a homemade weapon, it is also more likely to make a weapon of mass destruction, so there is no need for the other party to risk going to the construction site to commit crimes.
Of course, the specific situation is just a guess. Whether this is the case depends on some subsequent investigation conclusions.
The most important thing at the moment is to use the currently known clues and intelligence to determine the identity of the other party. As long as the identity of the criminal suspect can be determined, the rest will be easy to handle.
Lu Chuan first watched the suspect's entire crime process.
Please...you...Collect_6Ⅰ9ⅠBookⅠ(Six\\\Nine\\\Book\\\!)
Most of the workers at the construction site got off work at 5:30 last night, and gradually at 6:00, some workers who worked overtime also left the construction site, leaving two artificial sites.
There are a total of 25 formal staff at the Dongfang construction site, and there are 32 staff at the same time.
The entire Dongfang construction site is not considered the city center, but a slightly remote place, close to the suburbs, but the surrounding transportation is relatively developed, including subways and buses, and it is also close to a highway. The criminal suspects, if they snatch the weapons after committing the crime, they will If you want to escape, to be honest, the possibility of the other party leaving Qingzhou City directly is relatively high.
Although the Qingzhou City Police acted very quickly last night.
The suspect was seen entering the construction site room from the main gate at 6:32, and he was seen on the surveillance camera, smashing the opponent's head and killing him directly.
The other party did not leave the construction site room after that.
He first went to the construction site worker's body and took the other person's access card, then pushed the door on the right and entered the building.
Because if you want to enter the normal office building on the construction site from the construction site room, you need to swipe the access control to enter. After all, the inside is not open to the outside world.
The opponent's movements were so smooth that Lu Chuan's scalp went numb. (End of chapter)