In order, after Zhang Chuanxiang's speech, it was the director of the Fourth Bureau Zhao Guozhu, and then Lu Tianming arranged the specific work. However, because Director Zhao Guozhu, who was often asked to help and guide the work at the grassroots level, was the first time that he had seen such a big case. He slashed his heart and said a few polite words to the dark directors below the stage, and involuntarily pulled the content of his speech to the specific case.

Of course, these are the ones that the people below are willing to listen and understand!

Looking at the directors who subconsciously straightened their bodies in the audience, Zhao Guozhu said very seriously, "Theoretically, any crime needs to be motivated. But at present, the 6-14 explosion case is complicated, and the on-site inspection and investigation work cannot be summarized for a while to provide us with analytical resources. So in this case, you veterans need to use your brain, rely on experience, and intuition to make pre-judgments. I agree with Vice Minister Wen's words just now. You are all veterans, so you should have some of your own opinions on this?"

Crime motive!

The powerful men sitting in this conference room today were actually thinking about this question on the way they came. But when Zhao Guozhu was the first to really raise this question, no one could answer the scene.

Zhao Guozhu was not really trying to embarrass the audience. On the contrary, he first took the lead in explaining that "within two hours, there were very far apart and no intersections, explosions occurred one after another, resulting in dozens of deaths and hundreds of injuries. Whether it was interest conflicts, emotional conflicts, or retaliation for the society, it was not enough to make the most powerful annotation for the occurrence of this serial explosion. If the motive for the crime was not found for the time being, it would naturally be impossible to analyze the criminal target of the suspect. Without the target, it would be impossible to substitute the target into the coordinate system to analyze his social relations and conflict of interests. Everything was still spinning in place..."

Zhao Guozhu gave a long reminder, but the veterans waiting for people to feed him were still silent.

After the venue was cold for a while, Zhang Haisheng, who was actually unsure of his mind, had to stand up first with Lu Tianming's repeated hints and said, "Let me talk first! I am also a veteran. Let me tell you my personal opinion. The 6?14 explosion case is relatively concentrated in terms of explosion time. Although the internal connection between the four explosion sites cannot be found for the time being, it is ruled out that it was done by the same or the same group of criminal suspects..."

"Using this as a premise, if the suspect's motive is to retaliate against a certain person or a specific group of people, then it can be relatively confirmed that the suspect is relatively familiar with the four explosion sites, and it can also be relatively confirmed that there should be an inevitable connection between the four explosion sites that we have not discovered for the time being..."

"If the previous assumption is true, then the scope of the suspect can be determined accordingly. The next key task can be put into the investigation of the social relations between the four explosion sites and surrounding residents. The key is to cross-search whether there are people or gangs in the social relations of the residents in the four places who are familiar with the crime site, have certain blasting skills, are cruel and ruthless."

"It is also worth noting that based on the current situation, since the suspect can complete the detonation of four places in a very short time and hide it immediately, it means that he is very likely to be a local, or has been hiding for a long time in the city in recent times. Such a meticulous series of explosions not only requires multiple scouts in advance to calculate the time, but also requires a large amount of explosives to achieve the explosion effect..."

Speaking of explosives, Zhang Haisheng consciously glanced at Deputy Director Guo Yu sitting under the stage, and then continued, "As far as I know, the city's explosive control work has been implemented relatively well. Whether criminals use standard explosives or local explosives, it is not enough to accumulate such an equivalent without a certain amount of time."

"So, I personally recommend that our work be carried out in two steps. One is to speed up the sorting and investigation of the site, and determine the explosion site, explosion residue, and the cross-social relationship between the victims as soon as possible; the other step is that after the comrades present go back, they immediately start to investigate the explosive-related enterprises and institutions in their jurisdiction. There are criminals who have privately sold and manufactured explosives and hiding places that may hide explosives for a long time!"

After Zhang Haisheng finished speaking, he handed over the right to speak back to Lu Tianming. Comrade Lao Lu helped out with his wide-sized gold-rimmed glasses, but he remembered to say politely to Zhao Guozhu, "Director Guozhu, in principle, I agree with Director Haisheng's view. Look, what should we do next?"

Zhao Guozhu turned his head and looked at Wen Liansheng. After seeing that he had nothing to say, he continued to say, "My thoughts are basically the same as Comrade Haisheng. I will add two points. One is that when we investigate the suspects, we must treat the same crime history and the same attention should be paid to the same attention; the other is to expand the coordinate system, based on the level of low-cultural people, radiate upward layer by layer, and radiate outward layer by layer. I suggest that if necessary, we can coordinate with the brother units of provinces and cities near Jiangchuan to conduct investigations at the same time, and strive to lock in the suspects in the shortest time..."

Zhao Guozhu's fourth bureau did not mobilize the energy of other provinces and cities to cooperate in investigating the cases. Therefore, after saying this, he turned his head and looked at Deputy Minister Wen Liansheng who was thinking about it.

Minister Wen Liansheng was not in a hurry to express his opinion!

Everyone was working on hypotheses and inferences like fortune tellers here for a long time, but their foundation was not solid at all. They mobilized various police, various human and material resources on such a large scale to conduct case investigations. If there was a slight bias in one link, it might cause huge waste of resources. Therefore, even Wen Liansheng was unable to make up his mind for a while.

This situation lasted for 5 minutes. Everyone was expecting Wen Liansheng in contemplation. Suddenly, a slight knock on the door suddenly rang out of the originally quiet conference room.

Facing the expectant eyes of the crowd in the room, Lu Tianming's secretary and Wu Zhankui, assistant director of Jiangchuan Public Security Bureau, squeezed in from the crack of the slightly opened door and reported to the rostrum, "Minister Wen, Lu Bureau, and the comrades from the on-site inspection of the fourth bureau reported the preliminary inspection situation..."

"Let them come in..." Wen Liansheng frowned habitually, but his heart relaxed a little.

Following Wen Liansheng's order, the guns of the Fourth Bureau, which were sent by Director Zhao Guozhu to the site to preside over the inspection work, Li Changguo, deputy captain of the Blasting Trace Inspection Detachment. After he came in, he did not care about whether there was any free space in the house, and stood directly next to the rostrum to report, "Deputy Minister Wen, Director Zhao, Road Bureau, the preliminary on-site inspection has been completed, and the secondary trace inspection is currently being conducted in different areas."

"How is the situation?" Wen Liansheng said with concern on behalf of everyone, and then his eyes were placed on the few sloppy papers in Li Changguo's hands.

"When we arrived at the scene, the rescue and self-rescue work were carried out at the same time, so the conditions on the scene were not very good..." Li Changguo did not directly answer Wen Liansheng's question, but handed the paper to him, and closed his mouth tactfully.

Wen Liansheng also carefully looked through the "report" in his hand, and then passed the report to Zhang Chuanxiang beside him before instructing him, "Changguo will tell you about the situation on the scene..."

"OK!"

As a sound of paper flipping in the house sounded, Li Changguo slowly said, "After we arrived at the scene, we found three explosion sites from the explosion site of Building 9, the staff dormitory of Jiangchuan Textile Factory, a six-story unit building in Shierpu Village, the suburbs of the city, and two explosion sites were found from the Kaidian Community Service Center in Jinshan District. Through key surveys around the explosion sites, it was found that the crushing area of ​​the medium around the explosion sites was relatively small, which was in line with the characteristics of low-speed explosives. At the same time, because the smell of nitrate and ammonium were obviously spread in the air near the explosion sites, we focused on detecting the ammonium nitrate components in the extracts, and trace substances such as nitrate and ammonium ions were detected from the extracts at the four explosion sites. Therefore, it can be confirmed that in the 6?14 series explosion cases, the suspect used ammonium nitrate non-standard explosives..."

**!

When everyone in the room heard the news, they almost turned their attention to Zhang Haisheng who was recording on the rostrum. Among these people, especially Deputy Director Guo Yu, who is in charge of public security in Jiangchuan Municipal Public Security Bureau, has the most eager eyes.

Li Changguo noticed the changes of the crowd and then looked at Zhang Haisheng. Seeing that he had nothing to say, he continued to say, "Then, by searching the various explosion points and areas that the explosion points may radiate to, we did not find any electronic detonation device components such as wire residues, battery fragments, etc. at all the four sites; no residues of devices such as bp machines, electronic meters, alarm clocks, clocks or remote controls were found. Generally, electronic detonation methods can find the residues of the above items on the spot. When the explosives are large, the fuse index is detonated with the fuse index, and the residues of the detonation device cannot be found on the site. Therefore, it can be preliminarily determined that the detonation device used by the suspect in the 6?14 serial explosion case is a fire**, fuse and other ignition detonation devices..."

"The opponent is very cunning!" He kept silent and gentle, and suddenly interrupted Li Chang Guodao with emotion. "Changguo, the current conditions, from a technical perspective, are there any possibility of a merger based on you!"

"It's totally OK! The types of explosives used at the four explosion sites are basically the same. They all use ** detonate soft-packaged explosives, and the gas explosions are loaded with a large amount. According to the time density between the four explosion cases, there should be an inevitable connection between them, and technically, they are fully qualified for concurrent cases..."

Four cases have conditions for concurrent simultaneousness!

When everyone turned their attention to Zhang Haisheng again because of Li Changguo's conclusion, Zhang Haisheng's face no longer had the calmness of accepting Guo Yu's gratitude just now.

On the contrary, for some reason, he lowered his head, even had a trace of ferocious twitching on his face...
Chapter completed!