civil forensic

Chapter 455 Hanging Bells Around the Cat's Neck
"How many bombing cases do we have in Qinghe City?"

Looking at the dossier photo on the desktop, Jiang Yuan suddenly asked a question.

Perhaps because of the supervision by the provincial government, there are many photos of the explosion at Qu'an Station, and the files are neat and detailed, but they can provide very few clues to solve the case.

Jiang Yuan read it from the beginning to the end, but he couldn't find any useful information. The first thing he thought of was to use the exchange opportunity obtained by the second-class work to get an explosion skill back.

Since it is an exchange, it is natural to hope that the skills exchanged can be more applicable, so Jiang Yuan only asked this question.

The conference room was full of police officers from Jiang Yuan's backlog case squad. Everyone performed their duties and looked for clues.

Wang Chuanxing and Tang Jia worked part-time as Jiang Yuan's assistants, so they started to investigate.

"No more. Just this one case." Sitting at the other end of the conference table, Huang Qiangmin happened to be shrouded in the sun, drowsy, and when he heard Jiang Yuan's question, he answered it without thinking.

Jiang Yuan was a little surprised: "Just one?"

"Do you think it's a serial bombing?" Huang Qiangmin suddenly woke up. Jiang Yuan had discovered serial murders like this before.

Jiang Yuan shook his head: "That's not true, I'm counting on something else."

One skill is changed for another case. If it is like the kidnapping case last time, if the situation is compelling, it should be changed. There is no need to hesitate too much. After all, there are too many skills.But as far as the present is concerned, it is not in Jiang Yuan's consideration for the murderer to die sooner or later, and changing skills such as explosion trace detection may not be able to solve the case.

If it is a current case, there may be a greater chance. The old case 8 years ago, whether it is to exchange for a major skill of LV4 or a minor skill of LV5, can only be of limited help.

By comparison...

"Call Liu Chu." Jiang Yuan's voice was not loud, and Huang Qiangmin was shocked when he heard it.

"Do you want to call Liu Jinghui?" Huang Qiangmin was more surprised: "Don't you usually solve the case just by looking at the photos?"

"Boss Huang, it's not so easy to solve the case." Jiang Yuan looked at Huang Qiangmin strangely, and the policemen on the special class also looked at him because they were a little confused.

Embarrassed, Huang Qiangmin dodged Jiang Yuan's eyes, and couldn't help but reflect on himself: Could it be that I have been bragging about Jiang Yuan to others recently, so I believed it first!

Speaking of it, if you want to sell people from the public house to the public house for a fair price, you must have some eloquence.Huang Qiangmin has experienced many times over the past few days. The best selling point is the 100% detection rate, super fast speed of solving cases, and ultra-low cost of solving cases - so much bragging, Huang Qiangmin himself believes up.

Thinking of this, Huang Qiangmin's expression became more solemn, as a criminal policeman, it is not good to lose objectivity.Sui said: "I just think that you are more powerful than all the experts from the provincial department combined. With Liu Jinghui... if you really want to give him a chance, it's not impossible."

"Let's invite Liu Chu to come. There are very few clues in the case, but there is a lot of evidence. Liu Chu will take a look, maybe he can pull out some clues."

Too much useless information and too little useful information are the characteristics of this case and most of the bombing cases.

Liu Jinghui is obviously very suitable for such application scenarios.In contrast, it would take time for Jiang Yuan to scan through the evidence one by one.

Seeing this, Huang Qiangmin nodded, "Okay, it's a case that the provincial department has participated in, so it's appropriate for them to be involved."

After he finished speaking, he went out to communicate.

Jiang Yuan continued to look down at the photos, thinking about each one.

Similar to the backlog of cases before, the key problem in this type of case is that most of the clues have already been followed up and investigated during the current case. If they were not found back then, how can they be investigated now?
On the other hand, there is actually a lot of information involved in the case, and most of it is useless. Eight years ago, hundreds of criminal police officers were mobilized here to carry out various investigations, and three investigations were carried out.

This failed to solve the case. From this, it can be inferred that the big case was too expensive to solve, which would have an impact on the investigators. At least, Jiang Yuan had never heard of the name Qiu Yue.

Liu Jinghui arrived early the next morning.

He came by car in a police uniform, with a driver by his side, similar to Jiang Yuan, since he encountered danger, he has less and less traveled alone.

When he arrived at the place, he didn't waste his time. He read a lot of files and materials during the bus ride. When he arrived at the Qu'an Sub-bureau, he looked at the photos for a while and said, "As I thought, in this case, the case of explosives Residues are the greatest evidence and the hardest to find information on."

"Do you want to search along the source of the remnants? The task force investigated very carefully back then, and I didn't see any obvious flaws." Jiang Yuan looked at the pictures and read the files.Today, it is almost impossible to directly trace the source of explosive residues. The most important thing is that I did not find it in the past. It is unrealistic to go to a different ending.

Liu Jinghui shook his head: "I have no idea now. However, the residue of the explosive is actually quite interesting."

"Oh, how do you say it?"

"In most bombing cases, the detonator is usually a detonator or a fuse. There are many industrial and mining enterprises in our province. These two things...normally, if these things cannot be easily obtained, there will be no bombings. It's gone." Liu Jinghui had his own set of logic.

Jiang Yuan nodded slightly.

Liu Jinghui said: "But from another point of view, this case is very powerful. The explosives are black powder, and the battery detonates. It can be said that they are all relatively easy to buy, but the power is not bad. After 8 It’s been a year, and bombings of this level are rare.”

"Similarly, after eight years, the murderer has never done a similar bombing. This is worth investigating."

"The murderer's original purpose was not achieved, and the victim detonated the explosives ahead of time. If so, why didn't the bomb be relocated? Or did the explosion take place elsewhere, or did the murderer's purpose change? Or? The murderer What unexpected situation did you encounter?"

Jiang Yuan was taken aback when he heard that, he was not familiar with the bombing case, and he was not very clear about the types of explosives.But what Liu Jinghui said made sense. The murderer was not caught, so why didn't the murderer continue to commit crimes in an explosion like a terrorist attack?
This was originally what the task force was most worried about, and the provincial government intervened immediately to avoid this situation.

In fact, because the murderer is not directly involved in the bombing, the probability of continuous occurrence is already very high.For example, there was a certain Hu, who created three bombings in a row to attract attention because his girlfriend broke up and took away 2 yuan, and had nowhere to ask for it...

What is the purpose of the murderer of the Qu'an station bombing for such a big case?Did he achieve his goal?
"Time is our biggest disadvantage compared to the special case team, but also our biggest advantage." Liu Jinghui combed his hair back, the collars of his shirts were clean, his standard image was good, and his expression was very confident.

"If everyone has no ideas, I suggest that we start from the periphery and do some investigation work first." Liu Jinghui said that he has no ideas, but he actually has ideas, but his ideas are somewhat scratchy.

After all, you want to blindly guess the murderer's intentions, but thinking about things like this is sometimes really hard to guess.Still using someone Hu, the main messenger of the three explosions, as an example, his real purpose may be that he has a bad temper and wants to vent, or he just wants to discuss an explanation with his ex-girlfriend, but this is all his own. The inner drama, the truth that the police can trace is that he caused three bombings because his ex-girlfriend took away 2 yuan.

Who can guess this kind of answer?
Several people looked at each other and felt that it was quite difficult.

Huang Qiangmin couldn't help sighing even more, and said, "The mouse puts a bell on the cat."

This is his evaluation of Liu Jinghui's reasoning. The reasoning is good, but what about the execution?
Liu Jinghui laughed twice, and didn't care about Huang Qiangmin's evaluation. These muggles know what reasoning is. Reasoning also needs information. It is reasoning step by step, advancing step by step, obtaining information step by step, and then reasoning again, forming a positive feedback loop , and finally get the correct result.

Even if it is really to let the mouse hang the bell on the cat, it is not an impossible task, there is always a way.To decompose this task, it can be a preset trap, it can also be a multi-mouse attack, and it can also operate at night, etc...

Of course, if some mice are particularly good, they just hang the bell on the cat...

Liu Jinghui looked at Jiang Yuan expectantly, and said, "Let me do a little reasoning, where can you find a suitable breakthrough point?"

"It's better to have something real." Jiang Yuan said.

Liu Jinghui smiled, pondered for a while, and said, "Let me talk about a few possibilities first. The first one is about the murderer. The murderer suddenly stops committing crimes. The most common cases are that one is that freedom is restricted, one is that the environment is restricted, and the other is that life and The mood has changed."

"If it is the first point, we can check the list of people who were arrested and detained 8 years ago. Second, we can check the list of people who died and were seriously injured, including people who were seriously ill during this period, people who had traffic accidents, especially It was an accidental death, especially in industrial and mining enterprises, people with corresponding background capabilities..."

"Second, environmental issues. The murderer is likely to have gone abroad and left the local area. It may also be discovered by people around - this cannot be confirmed, but I think that if this is the case, more Mostly look for some passive factors. For example, entering a higher school, studying abroad, being sent to other places for business trips, or applying for a job in a foreign company after taking the public examination and teaching ashore."

"Third, in terms of life, have you been in a relationship during this time? Married? Have you had a child? Or divorced, broke up, your child or family member is sick, or you have a sudden illness... Also, promotion and salary increase , won the lottery, a sudden windfall..."

Huang Qiangmin and the others had good expressions at the beginning, like criminals sentenced for other crimes, but escaped the screening or investigation. It happened from time to time. It is easier to check, the time and name are very certain, it is nothing more than taking time to screen.

But in the ears of Huang Qiangmin and others, Liu Jinghui tended to go too far.Even if Qu'an is a small place, if you have to check things like entering a higher school or studying abroad, it will be a lot of work.

In the end, the promotion and salary increase count, but how much is the salary increase? Does 50 yuan count?
With such a large scope, Huang Qiangmin felt that Liu Jinghui wanted to touch all the people in Qu'an County.

If so, looking for Liu Jinghui would be better than looking for Xu Taining.

Liu Jinghui also felt that there were too many bells tied around the cat's neck. He touched his own neck and thought about it: "Then let's start from two directions. One is the list of criminals. The time can be longer. The murderer committed the crime 2 Crimes within the year count. Another one, let’s compare bombings in other places, including similar ones, attempted ones, and unfinished ones.”

Huang Qiangmin nodded slowly.

The captain of the criminal police team in Qu'an County also agreed: "Liu Chu is still quite good."

These two points were the parts that the special case team could not investigate.

Although the provinces and departments dispatched personnel in a hurry, after three or four months of investigation, the large-scale investigation almost stalled.On the one hand, the clues have been exhausted, but on the other hand, the risk of serial explosions has been reduced.

However, lower does not mean no.The murderer of some bombing cases has a different concept of time from the murderer of ordinary cases.He may spend a few months, or even a year or two, improving the explosives, modifying and perfecting his plan.

Therefore, people who accidentally lost the ability to commit crimes during this period of time are all suspicious, and the special case team has not investigated them.

The bombings or attempted bombings in other provinces may also be committed by the same murderer, which can also explain why he did not continue to commit crimes.

Compared with other messy guesses, the two directions proposed by Liu Jinghui are within a limited and controllable range, and the cost of investigation will not be too high, which is the type that the captains of the criminal police like.

　Thanks to friends for their care and love, the editor also presented a silk gold on behalf of China Literature Group, thank you very much.We were out of town, and everything was kept simple. There was no funeral or memorial service.His father made clear arrangements for his afterlife. Most of the starting point was based on not dragging down the children and not bothering others... The father loves deeply. In the last two months, he liked listening to me report the grades of novels the most. He liked reading books the most in his life. The writing was especially good, and later I was transferred to work in the library. When I talked about the revision of the starting point monthly pass, I am the son of the version, and after introducing its meaning, my father grinned. It was the last father I saw from the heart. smile.This book resumes updating.

　　
　
(End of this chapter)