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Chapter 619 Weeds

Jiang Yuan looked Pang Jidong up and down. To be honest, he was not as confident as Pang Jidong when it came to the functionality of forensic botany.

Pang Jidong looked at Jiang Yuan with excitement, his expression seemed to be saying: See if I guessed it right! I guessed it right!

For the purpose of encouraging teaching, Jiang Yuan asked: "How do you think we can find the burial place?"

"I saw that in your previous case in Litang Township, didn't you use vegetation to find the buried bodies?" Pang Jidong asked.

Jiang Yuan was a little confused by the question, shook his head, and said: "The difficulty is much easier, it is a judgment in a small area. And I just happened to see it, not specifically looking for it."

"But it should be possible to make a judgment." Pang Jidong has studied for so many days, and it is really not in vain. Moreover, the main direction of his study is how to use forensic botanists, rather than actually doing it himself.

Although he knew that what Pang Jidong had learned was quite difficult, based on his current understanding, it seemed that Jiang Yuan could do it.

Jiang Yuan looked at the map again, coughed twice, and hesitated a little.

This job is comparable to investigation, but the difference is that investigation is a group of people searching carefully, for fear of missing a point and losing all their efforts. But using forensic botany to find corpses, he can only search carefully by himself.

Not to mention boring, the work efficiency will not be very high.

The most important thing is that this approach is very difficult and there are few precedents. In the end, if he cannot do his best, it will be difficult for Jiang Yuan himself to accept it.

"Jiang Yuan, give it a try." Liu Jinghui saw this and said, "If you don't do it, you will have no choice but to find Xu Chu."

"Hey, hey, hey... Why did I say something wrong..." Huang Qiangmin was silent at first, but now he couldn't sit still and said hurriedly: "This is our own money in Ningtai County, don't

It’s ruined.”

According to the lines drawn by Liu Jinghui, conducting a search and investigation is similar to the investigation of more than 100 kilometers of national highways in Luyang City, but it may be a little more difficult. The advantage is that it is within the county, and supplies are more convenient, so it will definitely be troublesome.

There will be more.

But no matter how simple it is, Ningtai County cannot afford even 10% of the cost of Luyang City.

Even though Jiang Yuan sold it so many times, all he got back were supplies, and the Ningtai County Bureau's cash was still tight. If it comes time to spend money, there is nothing you can do, but for now

, obviously it’s not that urgent yet…

Huang Qiangmin held Jiang Yuan in one hand and Liu Jinghui in the other, and said: "Let's discuss it carefully and don't waste money easily. We are from Ningtai, a poor county. It's not easy to save a little money. Jiang Yuan, you can use that

Botany, can that be done?"

"Even if we fly a drone, it would be too time-consuming to look at everything one by one. If I were alone..." After Jiang Yuan said this, he looked at Pang Jidong and asked: "Have you tried to find a botanist?

Bar?"

"Yes." Pang Jidong nodded quickly and took the initiative: "Would you like to come over and give it a try?"

"It would be best if you can invite me here." Jiang Yuan said quickly. If someone wants to help, the situation will be different.

"Okay. I'll call. How many please?" Pang Jidong took out his cell phone.

"A few...then the more the better. Can we invite a lot?"

"I have found four or five people now. They are all researchers from the Institute of Botany, or professors from schools, the kind who have a team. Let's see how many can come."

Jiang Yuan was surprised: "I see that for foreign police, it is quite difficult to hire experts and so on, and the expenses are quite high."

Pang Jidong smiled while sending WeChat and text messages: "How can foreign police compare with our domestic police? We are the people's police. Moreover, no matter how harshly everyone scolds the experts, these powerful botanists are still very good."

For those who have ideals, I tell them that they can apply what they have learned. They don’t even care about money and they pay for their own round-trip air tickets.”

Jiang Yuan really had never been exposed to this part before, so he could only nod obediently.

The task force became busy at this point.

Following the lines drawn by Liu Jinghui, the police team flew multiple drones to conduct low-altitude photography. This part of the technology is already very mature. Demolition offices that ordinary families often encounter will fly drones to take pictures.

All the conditions on the ground were photographed to prevent anyone from building randomly or even planting trees to reclaim wasteland after the demolition notice was issued.

At the same time, Huang Qiangmin transferred the entire police dog squadron and tried to use it on the scene.

The experts invited by Pang Jidong arrived as early as noon, and they were racing against time.

In the afternoon, several botanists arrived at the conference room of the Ningtai County Bureau one after another. The conference room of the Zoumadao Police Station was too simple. Huang Qiangmin felt that outsiders could not misunderstand the working conditions of the people's police.

Jiang Yuan sat in the conference room very early, looking at the screen and taking notes. He greeted the botanist when he came in, and did not socialize too much.

There are a total of 5 routes drawn by Liu Jinghui. The area to be seen is very large, and everyone will have a full workload.

The last botanist to arrive at the Ningtai County Bureau was Su Lei, a female researcher wearing a professional suit and stockings. She was tall and had long and thin legs.

As a result, the number of people in the conference room increased by several, and the botanist who came earlier also introduced the situation politely, saying: "Now is the preliminary screening stage. Everyone claims an area or line, and then interprets it on the computer.

We will report the results as soon as they are found, but it is recommended to record them in a book and submit them together later. The corpse will not escape."

"Okay." Su Lei responded, and then asked: "How are you doing with your search?"

"I found an isolated grave. It was buried three or four years ago. The time doesn't match up. It should have been buried secretly by locals. The police have been sent to look for it." Jiang Yuan replied.

Su Lei was amused: "Is it so interesting to work with the police?"

"I am a police officer." Jiang Yuan pointed to his epaulette and introduced himself: "I am a forensic doctor from the Ningtai County Bureau."

"I know, Officer Pang said you know forensic botany. In fact, I'm quite skeptical. Does anyone really know forensic botany?" Su Lei is a true industry insider, and the questions she raised are actually very industry-specific, and said

: "I think forensic botany is a bit of a false proposition. Botany involves too much information. Is it too difficult to work as a forensic scientist and a botanist concurrently?"

In fact, it does.

If Jiang Yuan didn't have the help of the system, he would definitely not have thought of challenging forensic botany.

This kind of technology is knowledge that really requires systematic education to master. If you master it before graduation, you will master it. If you cannot master it before graduation, there will be no hope after graduation.

Jiang Yuan couldn't explain his situation, so he could only spread his hands and said: "Forensic botany is indeed more difficult, and we now tend to look for mature botanists. I am special."

"It's really special." Su Lei said as she approached Jiang Yuan.

Before she started working, she walked over to look at Jiang Yuan's work screen and took a look at Jiang Yuan's notebook.

At a glance, Jiang Yuan saw that Jiang Yuan had memorized the names of a lot of weeds, such as crabgrass, beef tendon, purslane, zebra...

Su Lei understood instantly and said: "Soil disturbance?"

"Yes." Jiang Yuan nodded.

Disturbance of the soil will transmit various environmental influences to the plant seeds in the soil and induce growth. The principle of this thing is also related to the "seed bank". The seed bank means that the soil contains all nearby plants

seeds, but when the conditions are not suitable, the seeds are just like in a bank, just stored in case of emergency needs.

When the soil is disturbed, the seeds in the disturbed soil will think that the time has come, and then rush to grow.

This is also the principle behind the changes in vegetation in burial sites.

Initially, the burial ground will become barren, and then a large number of plants will rush to grow.

Because weeds are the most stored in the seed bank, and those with lower growth requirements are also weeds. Therefore, after the burial ground becomes deserted, the second indicator that appears is weeds.

But in the end, everything comes down to competition, and the more competitive plants will eventually cover the burial ground.

It must be noted that the plants near the burial site do not grow very lushly.

The changing patterns vary from place to place and time, and botanists need to observe and accumulate information.

This is what Jiang Yuan is doing.

Su Lei only looked at Jiang Yuan's notebook and understood his working mode, and then her expression became serious.

"I choose this one. Line C." Su Lei returned to her seat, selected the line, and began to work hard.


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