civil forensic

Chapter 457 Upgrade
"According to an ordinary murder case, is the murder target the victim?" Captain Han asked, still cooperating with Liu Jinghui, and at the same time, he asked a very critical question.

If the object of the murder is the victim, there must be a motive.If not... then who.

This question is actually hard to answer.Liu Jinghui recalled the dossiers he had read, and pondered: "The victim is a local, in his 30s, and he opened a motorcycle repair shop by himself. The business is good. There is only one cousin helping in the shop. The wife takes care of the children. From time to time I came to help with the cash register and tidy up the storefront, saying that I didn't offend anyone..."

Captain Han listened in silence. From this passage alone, it can be seen that when Liu Jinghui said "everything is ruled out...", he really didn't rush to talk nonsense, he really thought about it. the problem.

In the conference room in the morning, there were only four people, and it happened to be a good time to exchange opinions. Liu Jinghui didn't have too many scruples, and then said: "If the victim is the target, then everything is easy to explain, and the murderer has achieved his goal." , naturally there is no need to continue to explode. The explosives are placed at the station, and it is also the only way from the motorcycle repair shop to the victim's house..."

Liu Jinghui listed several possibilities, and said: "The investigation of the past few days was not wasted. We proved that in the past few years, no similar explosions have occurred, and the same kind of gunpowder has never appeared again. This can prove that the murderer's goal has been achieved. at this point……"

Liu Jinghui was a little excited when he said that, but Captain Han couldn't see the slightest emotion on his face.

"Old Han, what do you say?" Liu Jinghui needed some feedback.

Captain Han said slowly: "If the victim is the target, it was actually investigated and there is no motive. The victim's wife has no relevant technical background, and the relationship between the two is harmonious, and there is no urge to kill her husband financially. , the two had just had a child for less than two years. The victim's cousin was also in the same situation. He was learning technology from him, and he would be a teacher in half a year. Now he has returned to the countryside and has to start all over again..."

"What about the motorcycle shop itself?"

"The motorcycle shop of 8 years ago is not the motorcycle shop of 18 years ago. It was a small workshop, focusing on repairing cars, earning hard money and manual money. After the motorcycle shop of the victim's family closed down , it closed down, and the landlord also suffered a loss, the house was rented for a long time before it was rented out, and there is no similar store opened nearby."

"If you want to open it, you will also open a garage." Mu Zhiyang said.

"That's right, it doesn't cost much more to open a car repair shop than a motorcycle repair shop."

"Maybe it's a deeper emotion." Liu Jinghui guessed.

Feelings and interests are the factors most likely to cause disputes and murders.A piece of cold knowledge, although modern people always feel that people are indifferent and the world looks at money, but with the development of the economy and the increase of per capita income, the main reason for killing people in China has long shifted from seeking money to emotional entanglements.

At least when it comes to killing people, everyone's love is more important than money. The so-called love has righteousness.

Captain Han looked at the list on the A4 paper at hand. Now that he has no direction, he can only follow Liu Jinghui's guess, but...

"Do you want to investigate according to the motive?" Captain Han asked: "Actually, we have already thoroughly investigated it. Including the victim's relationship in Qu'an County, and his relationship with his hometown in the countryside..."

"I think it's okay." Liu Jinghui looked at Jiang Yuan and said, "If we collect the footprints of all the victims' relationships, can we compare them with the footprints at the scene?"

Jiang Yuan nodded without hesitation: "Of course it doesn't matter."

This is not too difficult, the only problem is that there are too many footprints on site.

However, Jiang Yuan also immediately understood Liu Jinghui's thinking.The bombing case is different from ordinary murder cases of passion, it is carefully arranged.

Therefore, the murderer stayed at the explosion site for a long time, and it is very possible to leave footprints.Even if he wears foot coverings, etc., he can still easily see it - of course, there are no such obvious camouflage footprints on the scene, but if you scan all the footprints on the scene...

Considering the 20-meter radius of the explosion center, and the bus station where people come and go, the number of footprints involved is estimated to be very large, but it is indeed one of the feasible options, not to mention the objects for comparison.

Of course, this many-to-many footprint comparison is still very challenging.

The previous task force did not adopt this plan, and there is a high probability that it will not be realized.Many-to-one is relatively easy to do, many-to-many, very many-to-very many, it is a bit difficult to guarantee the success rate, even for Jiang Yuan.

The footprint identification of LV3 is estimated to be insufficient.

At this time, Jiang Yuan thought of the second-class merit that he had just obtained.

Jiang Yuan didn't think it was interesting to exchange second-class skills for an explosive skill. There were too few such cases. Even if he ran across the country, he would probably crash with various experts.

But footprint skills are different.

Jiang Yuan called out the system, and upgraded the footprint analysis skills on the spot——

Footprint Analysis (LV5)

Because it is a relatively small item, the raised level is still very high. The level of LV5 is not only first-class, but at least the top level in the country, and there are probably very few people who can reach it.

Jiang Yuansheng didn't have the slightest burden on this skill.Footprint is used too much, even if it is not used in this case, it is not a waste to upgrade it.

"I need to find a few more computers and monitors..." Jiang Yuan has never done a many-to-many of this scale, and he is also trying to make a request.

Captain Han naturally responded with all his strength, he fed all the meat, and there was no need to be stingy about serving a bowl of soup.

Liu Jinghui was a little happy. This is an important moment to verify his thinking. The so-called "there is only one truth" reasoning has not been realized in his reasoning career.

Most of the criminals are finished without this trick at all. The stories conceived by writers of mystery novels are mostly based on perfect premise, but in fact, unless the case is particularly simple, the more complicated the case, the more complex the case will be. The greater the possibility of traces.

For example, the current case can also be analyzed in this way.

If it is an explosion targeting unspecified people, the murderer can drop the explosives and leave.This case is a crude anti-social bombing case that used sophisticated explosives.

But if it is converted into a murder case, this case will become a sophisticated explosive murder case using sophisticated explosives, sophisticated timing, and sophisticated explosions.

In this way, the murderer will spend no less time nearby.It's basically impossible to get to the vicinity, put down the explosives and leave. You have to make some calculations, maybe you have to wait in advance, observe and so on.

The four of them seemed to be a little more excited, Captain Han immediately picked up the phone, his eyes were red, and he began to arrange for people to send more computers and monitors, and of course, IT personnel who could install them.

After 9 o'clock, a meeting room next to it was vacated, and a large number of monitors, computers and printers were installed.

"Keep a few computer people, and then sort out these footprints, number them, and never miss them." Jiang Yuan pulled all the members of his team over.

Wang Chuanxing and others are all young criminal police officers with high education. Now they got together and began to display the footprints from the scene.

The task force during the current case has already sorted out the footprints, and there are more than 20000 footprints that can be used for identification, each belonging to more than 4000 people.

Among them, there are footprints within the radius of the explosion, footprints outside the explosion range, and some more obvious footprints at the entrance and exit of the station...

As for the footprints of the victim's relatives, several people were collected at the beginning, mainly from the victim himself, the victim's wife and the younger brother who helped, as well as several immediate family members of the victim himself, several neighbors in the village, and several well-known people. A village hooligan with a surname...

At the beginning, the task force was limited by technical reasons, so it was tantamount to a wave of less-to-many, and the idea was similar to that of Liu Jinghui.

This shows that the special case team also had the idea of ​​​​hanging a bell to the cat at the beginning, and the high probability is that the working ability of the execution mouse is not good enough.

Jiang Yuan's LV5 skills, in the mouse world, must be at the level of the innate mouse.

Belling a cat is difficult, but not impossible.

Captain Han even sent a team of people to collect the footprints of various relatives, friends and stakeholders around the victim.

To put it bluntly, these criminal policemen actually don't know how to do it.Footprints are different from fingerprints. They change with people. There are some things that don't change, but there are more places that change.

But they don't understand, so they don't ask more questions.

Jiang Yuan knows how to do it, but he has just gained LV5 skills, which is the time when he is full of ambitions. Instead, he is quite confident and can recognize footprints that have gone through eight years.

In a vague way, the matter of letting the mouse hang a bell on the cat is about to become letting the mouse impregnate the cat, but the executing mouse does not make a sound, and the other mice naturally have no way of knowing.

Another two busy days.

Just after Jiang Yuan got used to LV5's footprint analysis, a senior police chief from the provincial department quietly came to Qu'an County again.

Qiu Yue was the person in charge of the task force for the explosion at Qu'an Station.

(End of this chapter)