Chapter 722 Don’t know the way forward

Chapter 722 Don’t know the way forward

Police dogs are good helpers, but they will pollute the site once they enter.

It doesn’t matter whether the technicians are cute or not. If they wear hoods and gloves, at least they won’t shed hair. Police dogs not only shed hair, but they also drool and stomp around with their little feet, so we must be on guard against them.

However, the advantages of police dogs are also very obvious. The sense of smell is weak in humans and difficult to replace with technology. As long as they are properly trained, one or two police dogs can find a large number of clues.

Tao Lu asked for five police dogs at once.

Two police dogs were left to work in the courtyard, while the remaining three police dogs left the courtyard directly and began to search the wild fields.

Including Jiang Yuan, Liu Jinghui and others, they couldn't help but focus most of their attention on the police dogs. As long as these guys with shiny hair scream a few times, this case will be sublimated.

Tao Lu was even a little nervous.

He was a little unclear now as to whether he wanted the dog to bark or not.

Woohoo….

The evil wind blew through the trees, making a muffled cry.

In such a large house in the wilderness, if there are only two or three or three or five people living there, it is probably a little scary to hear such rumors.

However, when hundreds of policemen stay in such a small house and hear rumors that are slightly threatening, they will only find it funny.

"Go back." Jiang Yuan waited for a while and saw that the two police dogs left in the yard showed no intention of coming online, so he felt a little tired.

If you can't smell it, you just can't smell it. There's not much point in waiting any longer.

Liu Jinghui sighed: "What a pity."

Qiao Shengli, who had been hiding in the corner and wanted to leave but didn't dare, asked softly: "What's the pity?"

Liu Jinghui took a long breath: "Big cases don't happen often. Especially when you unearth a big case from scratch, it's really rare. Think about it, what if you discovered a new species of botany?" , what would it feel like?”

"They are often discovered." Qiao Shengli said cheerfully: "I guess 300 species of plants were discovered last year. Our research direction is not in this area..."

Liu Jinghui waved his hands and sighed again.

Jiang Yuan returned to the criminal police detachment with a group of technicians.

He slept on the road and was still awake when he arrived, so he started fingerprint comparison work on the spot.

This case is quite special. If the same wild mansion were located in the mountains of Ningtai County, the police station would probably be focused on arresting people from top to bottom.

But in a place like Qingling Mountain, it's hard to say whether we can focus on arresting people.

Jiang Yuan could only seize the time to do things. Just because no body was found in the yard does not mean that there are no other bodies in this case. As for the "single-mindedness" issue, playing fast and slow might be effective.

Jiang Yuan has a very simple understanding. If he can do things that normal police cannot do, the detection rate of the case should logically be improved.

Just like the case in front of him, Jiang Yuan speeded up the whole process today and was confident that he would have all the fingerprints and footprints out in the next two days. But without Jiang Yuan's participation, it would take about a week for a strong bureau like Zhengguang Bureau to organize a group of elite soldiers.

The Zhengguang Bureau itself does not have LV4 level fingerprint experts and footprint identification experts. If you want one, you have to borrow it from the Municipal Bureau. Even if you can borrow it, they will not be available at any time. And even if the experts do come, and they are experts at LV4 and above, with tacit cooperation, they still may not be able to complete the task in two or three days.

This is the premise for Jiangyuan to lay the groundwork with LV5 crime scene investigation and LV6 crime scene reconstruction.

Finally, the Zhengguang Bureau or the Criminal Police Detachment needs more than just a fingerprint expert. They also need footprint identification experts, forensic evidence experts, forensic botany experts, etc. to cooperate.

Assuming that Jiang Yuan's opponents, that is, the criminals, have a clear understanding of the police's strength, normally they should make misjudgments.

This is what he thought of as a more reasonable and safe way to handle this case.

Therefore, Jiang Yuan returned to the office and immediately took action.

There were criminal technicians who came to help, and Jiang Yuan took advantage of them and gave them instructions without hesitation.

Fingerprint comparison is Jiang Yuan's first skill, and it was also Jiang Yuan's first investigation project. Now that he is back in the office, Jiang Yuan's first priority is fingerprints.

Fingerprints are known as the king of evidence, not without reason. They are extremely efficient and have clear direction. As primates, humans are very easy to leave fingerprints even if they can avoid it. Wearing gloves to do things is easier than wearing gloves. Wearing masks or condoms to do things is even more annoying.

So, to put it bluntly, is it easy for a criminal to wear gloves at all times? Really not, it's like requiring a person to wear a mask when going out and a condom when going to bed. The stricter the requirement, the shorter the time to adhere to it, and the harder it is to implement.

Moreover, before and after the incident, everyone can do without a condom. Take masks as an example. Once they get to a place where they can take off their masks, many people can’t wait to take them off. The situation at crime scenes is similar. Many people leave cigarette butts at the door of the crime scene or in the alley when they leave. Leaving fingerprints is very common.

In the house in Qingling Mountain, the fingerprints left behind were more wanton.

Several technicians also handled it very well.

It was still dark outside, but because the fingerprint processing went smoothly, several people were in a pretty good mood.

Next to Jiang Yuan's fingerprint examination, Dong Ai quickly hummed a song, and then smiled and said: "Those who know how to do it will take different fingerprints. Some of the fingerprints taken by the investigators or the criminal police really make people think." Hit people.”

Feng Chao, the trace examiner sitting opposite him, smiled: "Not to mention some of the investigators and detectives, some of the trace examiners' fingerprints made me want to hit them when I saw them."

"What kind of fingerprint inspection..." Dong Ai suddenly reacted mid-sentence and glared: "Old Feng, please speak up, are the fingerprints I took buried?"

"You used the iodine fumigation method to make the envelope before. What's the effect of the big brown fingerprints? It just looks like a mess in the photo. Even my son's poop in the mud looks better than that." Feng Chao made fun of him in front of his face and did not tolerate his colleagues at all.

Dong Ai was stunned, and said with a slightly embarrassed face: "Old Feng, what are you talking about about old things? That happened when."

"Lest you drift away." Feng Chao said happily.

Dong Ai sighed helplessly, turned to Jiang Yuan and said: "Lao Feng, this guy, never forgives others. I was too anxious at the time, and the light was not adjusted properly. Doesn't it only take a few minutes to develop after iodine fumigation? , the time for taking photos was tight, and there were people blocking the photo, so Lao Feng has been nagging me about this matter for several years."

"It's quite remarkable if something goes wrong just once in a few years." This case is complicated, and Jiang Yuan is doing things with emotional intelligence.

Feng Chao laughed again: "Then you definitely can't make mistakes every few years. That would be a miracle."

At first glance, Feng Chao looked like a veteran in the office. He didn't want to improve at all, so he just made fun of it.

However, from Jiang Yuan's point of view, Feng Chao's fingerprint identification technology can at least reach the LV2 level. He can be used as an expert in Qinghe City, but in the police station in Gyeonggi, he is just a general labor force, doing things. Come, I guess I don’t feel much sense of accomplishment.

Jiang Yuan simply ignored them and continued to do fingerprint comparison. Once the results were available, he recorded them.

Tao Lu returned quickly and came to Jiang Yuan's office as a habit, instead of the conference room.

"How's it going? Is there anything new?" Tao Lu asked Jiang Yuan directly without even looking at the screen.

"The fingerprints scanned so far include 2 men and 7 women. Women are generally better-looking. Most of them were recorded because they were punished by security. Mainly for prostitution, but also involved in other security cases." Jiang Yuankan Looking at the record book, he added: "The same goes for the two men."

Tao Lu anticipated this, nodded, and said, "You mean, this building is a den of obscenity?"

"It's possible." Jiang Yuandao.

"You drove Yande's Nest into the mountains of Qingling Mountain, but you ended up playing like this with five or six hundred bucks? Is it because you're afraid that the business is so good that the girls won't be able to bear it?" Feng Chao poked his head out from the other side of the desk. Come on, that makes sense.

Tao Lu and Jiang Yuan looked at each other and nodded.

Indeed, although prostitution is illegal, when you sell it, you must follow market rules. If this was a store, it would be difficult to drive to such a far place. How many people would come to play?

No matter how safe it is, not many people will come. Is safety the core requirement of prostitutes when they come out to play? Obviously not. If they pursue absolute safety, they will not come out for prostitution.

"The price per customer is too low." In Tao Lu's imagination, this is probably a very high-end store. After all, it is not easy to come. People who are willing to come have already paid such a high cost, so they should be willing to pay more. The price is , in this case, the person who built this yard can make a profit.

Otherwise, what is the picture for?

"Gathering people together to take drugs?" Liu Jinghui came in from behind and heard the discussion of several people.

"It's possible." Jiang Yuan paused and said, "There is no rapid test. Can we detect it in the follow-up test?"

Because of the seriousness of drug penalties, it is not uncommon to hide in the mountains and old forests to take drugs. If there are some ice girls and the like to accompany you, it will be a kind of enjoyment for drug addicts.

"However, according to common sense, if this is a drug den, it would be better to build it. There is no need. Once drug addicts see the drugs, they don't care about the surrounding environment. If we do it like this, we might as well get it to a place with convenient transportation. Any place like this, a community with few people living in it, is more comfortable than here." Liu Jinghui didn't know which case he was thinking of. He curled his lips and said, "Many of those who smoke these things are useless. How can you climb mountains and wade like this? of."

"Is the client in good health?" Feng Chao smiled: "If the client is in good health, it only means that the prostitute is not working hard."

"It's quite logical." Liu Jinghui praised.

"Bring someone back to take a look first." Tao Lu had no intention of continuing the discussion. Looking at the time, it was almost dawn, so it was a good time to send someone out.

Jiang Yuan also nodded and reminded: "Remember to ask them where they went. If they left because of the murder, they may not be well prepared."

In addition, criminals who have killed others will be more likely to make the decision to kill, and it is unknown whether the crime will escalate due to this.

The updates in the past two days are not very good. One reason is that something happened the day before yesterday. An aunt’s daughter disappeared because of a conflict with someone. The police searched the entire building but could not find anyone. The person who caused the conflict remained silence. Later, it was discovered that someone used the aunt's daughter's card to withdraw money twice in the early morning. Later, the police informed the aunt to have money ready. If there is a call, be careful and be prepared to pay. Finally, this morning, my aunt's daughter was found lying down at a highway toll station in another province. She was still alive and was taken to the hospital. During this period, the police in charge were very active and started the investigation in the early morning. However, I felt quite powerless in the middle of the incident... There is a great terror around us. Everyone should pay attention to personal safety.