Chapter 717: Gathering Talents, Professor Su Supports

"When I was in Baijiang Province and needed support related to forensic botany technology, I always invited some botanical experts to participate. But the feeling of doing it with the master is really different."

Pang Jidong followed Jiang Yuan to look at the microscope for a day, and suddenly couldn't help but sigh.

"Master's method of doing it is different?" Although Zhan Kan is a student of cranial reconstruction, he basically spends his time with Jiang Yuan during work hours.

"It's so different. It's so easy to do it with Master. The botanists outside are very powerful, but I don't think they have reached Master's level..." Pang Jidong himself has not mastered forensic botany. Yes, so Jiang Yuan is the strongest, but he still feels guilty.

Zhan Kong even thought that he was flattering him, and secretly praised his senior brother, and then said: "It would be good if we could invite botanists from outside. Unlike skull restoration, we can only do it ourselves."

"There are good botanists outside, such as the ones from the Institute of Botany that I just started looking for. They paid their own money to participate. But some are just for three minutes, and some just want to know more about it, and I just communicated with them. Well, people can leave after only a few days. Besides, experts have a lot to do, and they have projects and meetings at every turn..."

"That's true."

"It's a pity that I can't learn botany. It's better to be a young person. The possibilities are endless." Pang Jidong said with genuine emotion.

Forensic botany is too difficult. This skill may not have as many prerequisites as cranial restoration, but the depth requirements are still higher.

Botany itself is also a bit unknown, and there are even fewer people who take the initiative to learn it. Basically, only students who have gone to college and taken professional courses can get involved. In terms of the basic number of people, it is no better than sculpture.

Pang Jidong is fifty years old this year. He has a comprehensive understanding of forensic botany and can even popularize and communicate basic content to botanists who have been exposed to this aspect. However, if you really ask him to get started, it is impossible to continue.

When Jiang Yuang first learned forensic botany, he learned about the relevant situation. At this time, he smiled and said: "In this regard, we can only expand the invitation list and try to find botanists who are interested in this area. However, there are a few Just a long-term botanist is enough, it doesn’t take much.”

"Indeed. We can't pay for it anyway." Pang Jidong said with a wry smile and said: "I have discovered now that botanists who are capable of forensic botany and can really solve crimes, people want to make money. There are many ways, and the business trip allowance we have is just a courtesy fee.”

"The same goes for skull reconstruction." Jiang Yuan said indifferently: "Criminal investigation is a very interesting field. There are also people who are willing to assume social responsibilities and pursue a sense of accomplishment."

Pang Jidong looked at Jiang Yuan and said helplessly: "There won't be many such rich second generations and second generation demolishers."

"There have been less demolitions in recent years." Jiang Yuan sighed inexplicably. When he was studying in the past, houses in his family were demolished every once in a while, especially after buying some houses in the provincial capital, Jiangfu Town likes Houses or factories will be demolished if they cannot be kept for a few years.

Pang Jidong's eyelids twitched twice. Are we discussing the same thing?

After Jiang Yuan finished speaking, he turned around and continued working.

Pang Jidong watched for a while, then on a whim, he took out his mobile phone and started a group chat.

After a while, Pang Jidong put down his phone and said with a smile: "Master, there was a botanist named Su Lei before, do you remember?"

"Remember. Women, academic elites." Jiang Yuan naturally remembered that there were not many women among botanists. Although Su Lei looked 40 years old, she was still much more dazzling than the unkempt men.

"There is a group of botanists who often help. I just said in there that I came to master to study, and Professor Su Lei immediately suggested that I also want to come with you to study and take a look... I don't know if it's convenient. inconvenient……"

"I have no problem. I'll tell Tao Zhi later." No matter how high Jiang Yuan's status is in the Zhengguang Bureau, he is still a guest soldier. It is not easy to attract friends on other people's territory. He can't even say hello. Do not hit.

Pang Jidong immediately said: "I'll ask Tao Zhi directly. If possible, I'll call Su Lei and the others over. They have also participated in several cases through forensic botany now, and they just want to see how master you handle forensic botany." Looks like this, I think it might be more enlightening.”

"I have no problem." Jiang Yuan agreed.

That afternoon, Su Lei flew to the capital with her colleagues and students.

Su Lei was still wearing a professional suit and black silk high-heeled shoes, as if she had come to attend a meeting or conduct a business event.

Not only that, she also brought another student with her. She had long hair shawl, black and straight, and a broad mind. She was wearing a sports suit and carrying a backpack with deep scars.

"This is my new doctoral student, Qiao Shengli. Her research direction is to focus on forensic botany." Su Lei has worked for Pang Jidong several times recently and accumulated a lot of academic materials. , naturally cannot be wasted.

"Hello, Doctor Jiang." Qiao Shengli said hello proactively.

"Thank you for your hard work." Jiang Yuan, as a police officer, expressed his gratitude to the society for coming to help.

Then, he didn't plan to make any more greetings. He still held the mouse in his hand and said, "I'm about to process the pollen collected here. You guys sit down first, take a look and get familiar with the situation."

Jiang Yuan has a murder case in his hands. Cui Qishan and others have already gone to the victim's hometown. Not to mention the pressure on the family members, they also need to consider the danger of alerting the enemy. Time is very tight. Even if it is not a race against time, there is no time to waste on reinforcements.

Su Lei has worked with Jiang Yuan before. She smiled gently and said, "We are here to learn. It's okay to sit in the back and watch. Is it a murder case?"

"Yes. Everything related to the case is confidential. You can't take pictures or disclose any information to the outside world." Pang Jidong smiled and gave up his seat.

Zhan Kan also quickly gave up his seat, glanced at Qiao Shengli, and then quickly retracted his gaze.

"Are you analyzing diatoms now?" Su Lei sat down for a while, confirmed Jiang Yuan's operation, and took the initiative to participate.

Jiang Yuan was also willing to have an academic discussion. He nodded and said, "Now the evidence extraction has been basically completed. We want to use diatoms to first determine the point where the body entered the water. Then we will search the first scene based on this."

Using algae, especially diatoms, to determine the place where the body fell into the water, the place where the body drowned, etc., is already a mature technology.

Its principle is actually similar to forensic botany, but compared with plants on land, algae are simpler, and the community composition in different waters is more significantly different, so it was applied very early. Most cities have basically developed related technologies.

Su Lei understood it as soon as she heard it, and smiled: "Oh, then there is no need for satellite remote sensing image processing."

She was talking about the story of the last time they met, Jiang Yuan asked someone to use a drone to crawl out a large area of ​​images, and then use image enhancement processing.

The girl next to him, Qiao Shengli, had obviously heard this story before. She smiled and said, "The botanical genius who is good at satellite remote sensing image processing is a forensic doctor."

"I can't say that I am good at it. The scope of satellite remote sensing image processing is too wide. I just know a little bit about image enhancement technology." Jiang Yuan said this, looked at Su Lei, and said, "Are you willing to go to the scene?"

"Of course. Our Xiao Qiao is eager to have such a practical opportunity. Do you want to go to the river to take samples?" Su Lei asked.

"Yes, take samples along the river, and take them a little more frequently."

"No problem, we are all very skilled in this."

"Then I will send a few people to follow you. Let's take samples separately, one person for a section, and we must strictly follow the regulations to take samples. For this kind of case, the more rigorous and the more sufficient the evidence, the easier it is to sentence to death." Jiang Yuan reminded specifically.

Su Lei agreed, and then asked curiously, "What method are you going to use when you take samples back?"

Unlike the criminal police who are more concerned about the results, Su Lei is more interested in the inspection process.

"The hydrogen peroxide method." Jiang Yuan said.

"Better than the strong acid method." Su Lei nodded in agreement and said, "The strong acid method can easily destroy the shell of diatoms and cause great pollution."

"There may also be false negatives." Jiang Yuan added.

Su Lei smiled and continued, "But I read the literature and it seems that there is a microwave digestion method using nitric acid and hydrogen peroxide. Under vacuum ultrafiltration conditions, it is analyzed with a scanning electron microscope. It is said that the detection rate of diatoms can be significantly improved."

Jiang Yuan: "No vacuum. No ultrafiltration. No scanning electron microscope."

In the corner of the office, Huang Qiangmin, who was resting with his eyes closed, slowly opened his eyes.

...

Guantian River.

The endless river water flows from west to east, and you can't see the end or the source.

The clouds in the sky are from far to near, and you can't see through them or disperse them.

The trees with yellow leaves look like one piece after another from a distance, but when you get closer, they become sparse. A minibus stopped, and the fat boy Zhan Kan took the lead and ran straight to the river.

There were weeds and muddy dirt beside the wild river. Zhan Kan stepped on a few stones deftly and easily jumped to the riverside.

Zhan Kan smiled complacently. Although his figure was slightly out of shape, he had been trained after all, and it was common for him to go to the scene. The muddy riverside was loved by the lazy corpse throwers, and it was the home of forensic doctors.

Zhan Kan turned around and wanted to ask someone to throw the sampling bucket over. Before he could say anything, he saw Qiao Shengli, who had rolled her hair into a bun again, had already put on rain boots and stepped in the mud with a click.

"Let me do it." The place chosen by Qiao Shengli was more than ten meters away from Zhan Kan. In order to reach the target location, she took two more steps into the water without hesitation, and the whole person immediately sank in.

Qiao Shengli looked indifferent. She stood steadily first, and after her body regained balance, she threw the sampling bottle in her hand.

After collecting the water sample, Qiao Shengli bent down and dug out two pebbles, which she also threw into the evidence bag and marked. Her movements were smooth, as if it was a daily job.

After everything was completed, Qiao Shengli pulled her legs out, holding the backpack tightly against her chest, and walked out with difficulty, one step deep, one step shallow, deep, shallow, deep...