Chapter 555 Classification

"Why not choose the easy one?" Pang Jidong found it a bit difficult to understand.

According to normal thinking, if the benefits of doing each project are similar, then you must choose the easiest project to do. Even if the criteria for judging the difficulty of a project are different, it is always correct to choose a relatively easy project.

Jiang Yuan's answer was completely beyond Pang Jidong's expectation: "Other eucalyptus may not involve forensic botany. If I tell you later, you will forget it."

This is really... Pang Jidong's chest suddenly seemed to be filled with heat.

"Did you choose this girl for me?" Pang Jidong stood in the cold basement. He was stunned, his heart was hot, his mind was confused, his expression was dull, and his hands and feet had nowhere to rest. .

Jiang Yuan smiled calmly: "I also chose it for myself. I originally thought that the first few eucalyptus would be enough. You have never been able to get started here. I think it is also too difficult to start directly from pollen. Forensic botany has the most practice. It's a drowned eucalyptus. There happens to be one, let's take a look..."

"Yes... I'm too dull..." Pang Jidong felt particularly regretful. He should have worked harder in the past few days.

Pang Jidong couldn't help but think back that it had been more than ten years since he left the category of young people, and no one had been so kind to him.

Once, when he first entered the industry, his master was very good to him, and the subsequent leaders, including the director, were also very good to him. However, the leaders gradually retired, left office, and were transferred. Now... the master has gone home to take care of his old age. It was his wife who was so kind to him, and then the children. Finally, the focus of his wife and children also changed...

When people reach middle age, the only option left seems to be to burn themselves.

"Captain Jiang, I..." Pang Jidong's heart was beating loudly in his chest.

"You do your best, and I do my best. In this way, if there are eucalyptus that can be made using forensic botany in Luojin City in the future, you can at least catch it." Jiang Yuan did not give Pang Jidong a chance to express his feelings directly. , when three men say this while working, the corpse in the ice coffin will laugh.

Pang Jidong nodded vigorously and said: "If I find a suitable candidate, I will come to you..."

"That's not necessary. However, there are definitely technicians who can do forensic botany. You can look for them later. There is an advantage in China. The salary for research is low. If you add a little more subsidy, there will always be people willing to help." Jiang Yuan thought that if a normal botanist were in China, no matter how big the lion's mouth was, it would not be bigger than Huang Qiangmin's mouth.

Of course, Jiang Yuan provides a one-stop service, and it does not only use forensic botany technology, which is another thing.

While talking, the three of them came to the autopsy room to look at the corpse.

The corpse's face was swollen, and only two fingerprints could be obtained, which failed to match. One of his thighs had been removed to remove bone marrow and diatoms. Even so, the body's entry point into the water and its identity could not be determined.

If the identity cannot be determined, it will be difficult to carry out the project.

Lu Jie, the forensic doctor in Luojin City, took out a large number of photos and hung them on the backlight screen. He said: "When the body was delivered, there were obvious injuries from strangulation on the neck, so it was judged to be homicide."

As he spoke, he pointed to the photo for Jiang Yuan to see.

The position of the neck on the corpse cannot be clearly seen due to dissection and storage. It looks much more comfortable in the photos.

When Jiang Yuan had finished looking, Lu Jie continued: "The body was found in Jinshui River. The water flow of Jinshui River is very large and the river is extremely long. We searched for it for a long time and did a lot of sampling. , but no useful clues were found.”

Jiang Yuan pondered slightly and said to Pang Jidong: "This is a drawback of the algae community. It is different from the pollen map. Because the algae is highly concealed and cannot be seen directly, it can only be used for proof and is not easy to use. To be a directional tool.”

Pang Jidong understood this aspect and nodded: "You can only find the place. Use this algae community to prove that it is here. You cannot find the place directly through the algae community."

"It's almost the same thing, but we can usually tell the type of water body by this." Jiang Yuan said and looked at Lu Jie.

"It should be Danshui. River water." Lu Jie said.

"River water is the most troublesome. If it is salt water, you can determine the general sea area based on the salinity. Generally, crime scenes or accident scenes are in bays, so it is easier to find the location. The algae distribution in lake water also has certain characteristics. In the case of river water, "It is difficult to determine the location of a long river like Jinshui River." Jiang Yuan gave Pang Jidong a brief introduction.

According to Jiang Yuan's understanding, what Pang Jidong needs most is this kind of shallow-level information, which will help him rely on experts in the future.

As for true academic research and judgment, trying to teach Pang Jidong is a bit too much.

"What should we do now?" Lu Jie asked. Jiang Yuan is a forensic doctor, he is also a forensic doctor, and he also wants to make progress.

Jiang Yuan thought for a while and said: "Two options. The first one is to do skull restoration. After the skull restoration is done, and then compared with the photos of the missing people, something may be discovered. Forensic anthropology can also be used, one I mean, the effect will be better if used together.”

Forensic doctor Lu Jie smiled. Yes, Jiang Yuan knows about skull recovery, and Jiang Yuan also knows about forensic anthropology. Although they are both forensics, it would be too much to point to a forensic doctor and know about skull recovery and forensic anthropology. We are all people who have read books. Why don’t you go to Tsinghua University?

Jiang Yuan said this, and then said: "Second, we can classify the algae and see if we can limit it to a small group, and then look for the scene, maybe there will be a better chance."

"Classification?" Lu Jie frowned, he felt that the classification Jiang Yuan said was definitely different from what he imagined.

"Well, give priority to diatoms. Once other algae are dried, it is difficult to identify the species. In contrast, water has basically no effect on the silica shell of diatoms." Jiang Yuan introduced Pang Jidong by the way, and then said: "We will try our best to classify other algae and classify as many as we can."

Lu Jie nodded blankly.

Diatoms and other algae were all extracted by him, but why didn't he classify them before? Of course it's not because I don't like it!

There are more than 200 types of diatoms here. As for algae, it doesn't make much sense to say a total number, after all, many species are not available locally, but as a reference, you can look at this data: more than 27,000 species.

[A novel app that has been running stably for many years, comparable to the old version of the book-chasing artifact, and the source-changing app used by old bookworms,]

Even if Lu Jie's head was flattened, he would not be able to learn to distinguish the types of algae. It is possible to find a professional algae expert, but the workload is not small, and it is not enough to just distinguish the types of algae carried by the corpse. The subsequent bottles of samples have to be distinguished.

Moreover, even if the scene is found in the end, the case is still far from being solved.

Therefore, Huang Qiangmin sells for a one-stop forensic doctor like Jiang Yuan who can solve the backlog of homicide cases.

"Let's get started." Jiang Yuan felt that he had said enough, so he rolled up his sleeves and started working.

Lu Jie followed silently and wanted to see how Jiang Yuan did it.

He looked...

He looked horizontally...

He looked vertically...

He leaned on Pang Jidong to look...

In the evening.

Pang Jidong came back from taking a takeaway and saw Lu Jie crying alone in a corner.

A man in his thirties or forties, crying like a fat child with an ugly face, rough skin and few hairs, Pang Jidong couldn't help but feel a little sympathy.

"What's wrong?" Pang Jidong sat next to Lu Jie and asked softly.

"Pang Da, tell me, am I an idiot?" Lu Jie asked with tears in his eyes.

If this was a young lady, Pang Jidong would have said something warm and heartwarming, but since this was a grown man so ugly, Pang Jidong could only say truthfully: "If you want to compare with Jiang Yuan, you are indeed an idiot."

"He uses the nine-step method, and I also use the nine-step method. Why does he screen out more diatoms than mine, and is it easier to identify than mine? Why does he know 200 species of diatoms..." When Lu Jie talked about the sad part, he threw himself into Pang Jidong's arms.

Pang Jidong pushed it away firmly and said with a smile: "I don't think it's a big deal. It's just 200 kinds. Just recognize them slowly."

Lu Jie looked at Pang Jidong woodenly: "How many kinds of green leafy vegetables do you know?"

"What?"

"The difference between diatoms under the microscope is smaller than the difference between green leafy vegetables. If I give you 200 kinds of green leafy vegetables, can you distinguish each one?" Lu Jie asked seriously.

Pang Jidong: "It sounds a bit difficult."

"He also recognized more than 20 kinds of algae." Lu Jie shook his head while saying: "He actually recognized all the algae with characteristics..."

"It's difficult... quite high?"

Lu Jie laughed: "Give you 27,000 dogs, choose 20 of them, can you name them?"

"Why not try giving me 27,000 ex-girlfriends." Pang Jidong has encountered many frustrated suspects and victims, sometimes including the criminal police under his command, who know how to change the subject.

Lu Jie laughed so hard that his nose bubbled, and then said: "He also revised the postmortem immersion time... Tomorrow morning, I should take people to collect samples..."

Lu Jie's voice became smaller and smaller. Obviously, the shock he received at the scene was completely different from the story he heard.

Pang Jidong just smiled. Algae is nothing. Pollen is abnormal. If you want to talk about being upset, look at how upset the bureau leaders are now.