Chapter 691: Gathering Talents, Professor Su's Support

"In Baijiang Province, when I need support related to forensic botany technology, I invite some botany experts to participate. But the feeling of doing it with Master is really different."

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

"Is the way Master does it different?" Zhan Kan was learning skull reconstruction, but during working hours, he basically soaked beside Jiang Yuan.

"It's too different. It's so easy to do it with Master. The botanists outside are very powerful, but to say that they have reached Master's level, I feel there isn't..." Captain Pang Jidong himself hadn't mastered forensic botany, so he felt a bit guilty saying Jiang Yuan was the strongest.

Zhan Kan thought he was flattering, secretly praised the eldest senior brother, and said: "It's good to be able to invite botanists from outside. Unlike skull reconstruction, which we can only do ourselves."

"There are good botanists outside, like the few from the Institute of Botany I found at the beginning. People pay out of their own pockets to participate. But some are just three-minute heat, and some just want to come and understand. Just after communicating well with them, they run away after staying for a few days. Furthermore, experts have a lot of things to do, and they have projects or meetings at every turn..."

"That's true."

"It's a pity that I can't learn botany. It's better for young people; infinite possibilities." Captain Pang Jidong was truly sighing.

The difficulty of forensic botany is too great. This skill may not have as many prerequisites as skull reconstruction, but the depth requirement is even higher.

Botany itself is a bit niche, and fewer people take the initiative to learn it. Basically, they are students who have read professional courses in university before they will dabble in it. In terms of the basic number of people, it is no better than sculpture.

Captain Pang Jidong is already fifty years old this year. He has a comprehensive understanding of forensic botany and can even popularize communication basics for botanists who have come into contact with this aspect, but it is impossible for you to really let him do it.

When Jiang Yuan first learned forensic botany, he understood the relevant situation. At this time, he smiled and said: "In this regard, we can only expand the invitation surface and try to find botanists who are interested in this aspect. However, it is enough to have a few long-term cooperative botanists; there is no need for too many."

"Indeed. Anyway, we can't give money." Captain Pang Jidong said with a wry smile: "I have discovered now that botanists who have the ability to do forensic botany and can truly reach the level of solving cases have many ways to make money. Our little travel subsidies and the like are just a polite fee."

"Skull reconstruction is the same." Jiang Yuan said indifferently: "Criminal investigation is a very interesting field. There are also people who are willing to assume social responsibility and pursue a sense of achievement."

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

"There have been fewer demolitions in recent years." Jiang Yuan sighed inexplicably. When he was studying, there were houses in his family being demolished from time to time. Especially after buying some houses in the provincial capital, the houses or factories that Jiangfuzhen liked wouldn't stay for a few years before being demolished.

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

Jiang Yuan finished speaking and turned to continue working.

Captain Pang Jidong watched for a while, had a sudden whim, took out his mobile phone, and played with group chat.

After a while, Captain Pang Jidong put down his mobile phone and smiled: "Master, do you remember a botanist named Su Lei before?"

"Remember. Female, academic elite." Jiang Yuan naturally remembered. There were not many women among botanists. Although Su Lei looked about 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 it that I came to Master for advanced studies. Professor Su Lei immediately proposed that she also wanted to come for advanced studies and follow along to see... I don't know if it's convenient or not..."

"I have no problem. I'll tell Branch Chief Tao in a while." Jiang Yuan's status in the Guangju Bureau was high, but he was still a guest army, so it was not good to recruit friends and companions on someone else's territory without even saying hello.

Captain Pang Jidong said immediately: "I'll ask Branch Chief Tao directly. If it's okay, 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 you do forensic botany, Master. They feel that they might have more insights this way."

"I have no problem." Jiang Yuan agreed immediately.

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

Su Lei was still in a professional suit, black silk, and high heels, as if she were here to attend a meeting or conduct business activities.

Not only that, she also brought a new student, with long hair draped over her shoulders, black and straight, with a broad chest, wearing a sportswear, carrying a double-shoulder bag, which squeezed out deep marks.

"This is my new doctoral student, Qiao Shengli. I am preparing to lean her research direction toward forensic botany." Su Lei had done several free jobs for Captain Pang Jidong recently and accumulated a lot of academic materials, so naturally, she couldn't waste them.

"Hello, Forensic Pathologist Jiang." Qiao Shengli took the initiative to say hello.

"Hard work." Jiang Yuan was a police officer after all, and expressed gratitude for the social support.

Then, he didn't prepare to make more pleasantries, his hand was still grabbing the mouse, and he said: "I am preparing to process the pollen taken here. You sit down first, watch casually, and familiarize yourself with the situation."

Jiang Yuan was holding a homicide case in his hand, and now that Cui Qishan and others had rushed to the victim's hometown, not to mention the pressure on the family side was maxed out, it was even more necessary to consider the danger of alerting the enemy. The time could be said to be quite tight. Even if it didn't reach the degree of racing against time, there was no room to waste time for reinforcements.

Su Lei had cooperated with Jiang Yuan, smiled gently, and said: "We are here to learn. It's okay to sit in the back and watch, right? Is it a homicide case?"

"Yes. Everything related to the case belongs to secrets and cannot be photographed or leaked any information to the outside." Captain Pang Jidong smiled and gave up his position.

Zhan Kan also hurriedly gave up his seat, looked at Qiao Shengli, and hurriedly withdrew his gaze.

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

Jiang Yuan was also willing to have academic discussions, nodded, and said: "Now the evidence extraction has been basically completed. I want to determine the water entry point of the corpse through diatoms first. Then search for the first scene based on this."

Using algae, especially diatoms, to determine the water entry point of a corpse, drowning location, etc., already belongs to mature technology.

Its principle is actually similar to forensic botany, but compared to plants on land, algae are simpler, and the community composition of different water areas has more significant differences, so it was applied very early. Most cities basically have developed related technology.

Su Lei understood as soon as she heard it, and smiled: "Oh, this way, satellite remote sensing image processing won't be used."

She was talking about the story of the last time they met, when Jiang Yuan asked people to crawl a large area of images with drones and then use image enhancement processing.

Qiao Shengli, the girl next to her, obviously had also heard this story, and smiled: "The botany genius who is good at satellite remote sensing image processing is a forensic pathologist."

"Good at it is not counted. The scope of satellite remote sensing image processing is too wide; I just know a little bit of image enhancement technology." Jiang Yuan said here, looked at Su Lei, and said: "Are you willing to appear at the scene?"

"Of course. Our Little Qiao is eager to have such practical opportunities. Are we going to take samples in the river?" Su Lei asked.

"Yes, take samples along the river, take them a little denser."

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

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

Su Lei agreed and asked curiously: "If we bring the samples back, which method are you going to use to process them?"

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

"Hydrogen peroxide method." Jiang Yuan said.

"Better than the strong acid method." Su Lei nodded in agreement and said: "The strong acid method easily destroys the outer shell of diatoms, and the pollution is also large."

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

Su Lei couldn't help but smile, and then said: "But I read the literature, and now it seems that there is a microwave digestion method using nitric acid and hydrogen peroxide. Under vacuum ultrafiltration conditions, using scanning electron microscopy analysis, 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 closing his eyes to rest, slowly opened his eyes.

Guantian River.

The vast river water went from west to east, with no end in sight and no origin in sight.

The clouds all over the sky, from far to near, could not be seen through and could not be dispersed.

The yellow-leafed trees, one after another when viewed from afar, became sparse when viewed up close. A minibus stopped, and the little fatty Zhan Kan took the lead, heading straight for the river.

The wild river bank was overgrown with weeds and had muddy sludge. Zhan Kan stepped on a few stones nimbly and jumped to the river bank easily.

Zhan Kan smiled triumphantly. Although his figure was slightly out of shape, he had been trained after all, and appearing at the scene was a common occurrence. The muddy river bank was loved by lazy corpse-dumpers, which was the home court of forensic pathologists.

Zhan Kan turned his head, wanting to call someone to throw the sampling bucket over. Before the words left his mouth, he saw Qiao Shengli, who had rolled a bun again, had already changed into rain boots, and stepped into the mud with a crunch.

"I'll do it." The place Qiao Shengli chose was more than ten meters away from Zhan Kan. In order to reach the target location, she didn't care at all and took two more steps into the water, and her whole person immediately sank in.

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

The water sample was taken, and Qiao Shengli bent down to dig out two pebbles, which were also thrown into the evidence bag, and wrote and marked them. Her movements were so smooth, as if it were daily work.

Everything was completed, and Qiao Shengli pulled her legs out hard, tightened the backpack in front of her chest, and walked out with difficulty, step by step, deep, shallow, deep... ===== CHAPTER 692 =====