Lu Chuan did not expect that this case would involve so many inside information. It can be said that among the cases investigated, this case is very distinctive.
The case is closely linked, and there is a criminal suspect behind the suspect. The headquarters of the criminal gang, or the final behind-the-scenes commander, is not in China. This actually brings great difficulties to the overall advancement of the case.
Fortunately, the cases directly under the jurisdiction have been investigated.
During this period, it can be said that the work pace of the Criminal Investigation Detachment is very fast and everyone is very tired.
Things come one after another, constantly impacting.
In addition, after this period of running-in and proficiency, Lu Chuan gradually gained a better grasp of the overall work of the Criminal Investigation Detachment.
Originally, Lu Chuan was only responsible for technical work in the Criminal Investigation Detachment, but now this case must be considered in a comprehensive manner. Compared with that of the Public Security Bureau below.
When Lu Chuan was in charge of administrative work in the High-tech Zone, although Lu Chuan was in charge of administrative work, he actually had the director and director, and was actually the first person responsible for the case investigation in the public security bureau below.
In addition, there was a criminal police brigade under the Public Security Bureau. At that time, Lu Chuan was relatively similar to his working style when he was the captain of the criminal police brigade, because his main purpose and energy were all focused on case investigation, and he was also the leader as the captain at that time.
After becoming the deputy director of the branch, the management work is more about the management work. The following criminal police brigades have to be more responsible for solving cases, and there is relatively less management work to go to the scene.
Now that he has returned to the Criminal Investigation Detachment, Lu Chuan feels that the work he does is more specific.
The investigation of the case actually requires him to take action personally. For example, during the interrogation, when others have no choice, the captain of the criminal investigation detachment must go up and over.
Even the technical analysis of the crime scene, Lu Chuan sometimes needs to do it. After all, there are some techniques that others can't get. Although Yang Sen and Yang Lin are already skilled in their skills and have improved quickly, they have to stand alone when they are not around these years, but Lu Chuan has to take action personally for some difficult and complicated diseases.
We have made some brief arrangements for the follow-up work in the detachment. Everyone has stopped working overtime in the past two days. The relevant criminal information and clues have been handed over to the remaining work of the Interpol. If there is any feedback from the Interpol who needs to cooperate with Haizhou City, they will take action after entering Sichuan.
When I got home, I took a good rest with my wife and children for a few days.
It happened to be a weekend, but the case came again in the evening.
At three o'clock in the morning, the outskirts of Haizhou City were wrapped in thick night, so quiet that only a few barkings came occasionally. Suddenly, a sharp and rapid fire sound pierced the night sky, breaking the tranquility. A fire lit up in a house located on the outskirts of the city, and the flames licked the house frantically. The rolling smoke surged in the night, which was particularly eye-catching.
After receiving the report, Lu Chuan quickly led Zhang Hui, Wang Shuai and a group of criminal investigators to the scene. At this time, the scene was already in chaos, and the firefighters were nervously extinguishing the fire, and the water column gushed out of the high-pressure water guns fought hard against the fire. There were many awakened neighbors gathered around them, wrapped in blankets, with fear and worry on their faces.
Lu Chuan stood outside the cordon, frowned, and observed the scene with a serious expression. He knew very well that the investigation of the fire site was extremely difficult. The fire not only destroyed a large amount of evidence, but also may change the original state of the site. But he did not retreat at all and decisively ordered: "Zhang Hui, you are responsible for leading a group of people to visit and investigate the surrounding area, asking the surrounding residents whether they see suspicious people or hear abnormal sounds; Wang Shuai, you are responsible for leading another group of people to assist the technicians in conducting detailed investigations on the site, and be sure not to miss any details."
"I understand!" Zhang Hui and Wang Shuai responded in unison, and quickly led the team members to take action.
Wang Shuai led the investigation team, dressed in professional protective equipment, and carefully stepped into the ruins that still had residual heat. Below their feet are burnt boards and broken rubble, and each step is accompanied by a "crunch" sound, and they must be extremely careful not to destroy potential evidence. The technicians first conducted a preliminary examination of the body. The body had been burnt, unrecognizable and difficult to identify.
Forensic Zhang Kai squatted down and carefully looked at the body. While checking, he said to Wang Shuai: "Team Leader Wang, you see, there is a large amount of smoke in the trachea of the deceased. It is preliminary judgment that the deceased was still alive when the fire broke out because of excessive smoke suffocation. However, the specific cause and time of death must be returned to the laboratory for further detailed examination."
Wang Shuai nodded with a serious expression: "Okay, thank you for your hard work, Forensic Zhang, we will continue to investigate here on the scene, and communicate with any new discoveries at any time."
Subsequently, the investigation officially began. They progressed gradually from the outside to the inside and from top to bottom according to the established survey order. At the entrance of the house, Wang Shuai squatted down and carefully checked the door frame and door lock. The door lock has signs of pried and the scratches are fresh.
"Xiao Li, come here quickly and see the door lock." Wang Shuai greeted the young technician Xiao Li.
Xiao Li walked over quickly, took out professional tools, and carefully inspected the door lock, and said, "Team Leader Wang, this door lock has been pried and the technique is very rough. It should not be done by professional lock unlockers. I will collect fingerprints first to see if I can find useful clues."
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Wang Shuai looked at Xiao Li collecting fingerprints and thought to himself: Could it be that someone forced to enter? What does this have to do with this fire?
When you enter the house, the first thing that catches your eye is the mess in the living room. Wang Shuai noticed that there was a pool of darker traces near the sofa wreckage in the living room, and the surrounding ash showed irregular radial shape. He gently pushed away the ashes and leaned closer to smell them carefully. A pungent smell came to his face, very much like the smell of gasoline.
He quickly stood up and said to the team members around him: "It is likely that this is the fire point. Collect samples immediately, conduct composition analysis, and see if it is a flammable liquid." The team members immediately took action, collected samples with professional tools, put them in sealed bags, and marked the location and time.
Yang Sen also came over and squatted down to check: "Just from the traces and smells, it is probably gasoline. And you can see the distribution of the ashes. The fire spreads very quickly when the fire catches, which should be caused by the large-scale sprinkling of flammable liquid. From the distribution and shape of these traces, I can probably restore the scene in the early stage of the fire. The suspect should have dumped a large amount of flammable liquid around the sofa." (End of this chapter)