civil forensic

Chapter 555 Classification
"Why not choose an easy case?" Pang Jidong found it a bit difficult to understand.

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

Jiang Yuan's answer was completely beyond Pang Jidong's expectations: "Other cases may not necessarily involve forensic botany, and you will forget what I told you later."

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

"Did you choose this case for me?" Pang Jidong stood in the cold basement, he was dazed, his heart was hot, his mind was bewildered, his expression was blank, and his hands and feet had no place to rest.

Jiang Yuan smiled calmly: "I also chose it for myself. I thought the first few cases were enough. You have been unable to get started here. I think it is too difficult to start directly from pollen. The practice of forensic botany is the most There happens to be one drowning case, let's take a look..."

"Yes... I'm too dull..." Pang Jidong regretted that a few days ago, he should have worked harder.

Pang Jidong couldn't help but recall that it had been more than ten years since he left the category of young people, no one had treated him so well.

In the past, when he first entered the industry, his master treated him very well, and the subsequent leaders, including the bureau chief, also treated him very well. However, the leaders gradually retired, resigned, and transferred away. Now... the master has also returned home to take care of his life, and the wife who treats him so well is the wife, and then the child. Finally, the focus of the wife and the child has changed...

When a person reaches middle age, the only option left seems to be to burn himself.

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

"You will do your best, and I will do my best. In this way, in the future, if there are cases in Luojin City that can be handled by forensic botany, you can at least handle them." Jiang Yuan didn't give Pang Jidong a chance to speak his mind directly. The corpse in the ice coffin would laugh when the three men said that at work.

Pang Jidong nodded vigorously, and said, "If I find a suitable case, I'll come to you..."

"That's not necessary. However, there must still be 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 there is a little more subsidy, there will always be someone who is willing to help." Jiang Yuan thought, if a normal botanist is in China, no matter how big the lion's mouth is, it will not be bigger than Huang Qiangmin's mouth.

Of course, what Jiang Yuan provides is a one-stop service, and it doesn't just use the technology of forensic botany, which is another matter.

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

The face of the corpse was swollen, and only two fingerprints were barely obtained, which failed to match.One of its thighs has been removed and used to extract bone marrow and diatoms. Even so, the water entry point and identity of the corpse have not been determined.

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

Lu Jie, the forensic doctor in Luojin City, took out a large number of photos and hung them on the backlit screen, saying: "When the corpse was delivered, there were obvious constriction injuries on the neck, so it was judged as homicide."

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

The position of the neck on the corpse is not clearly visible due to dissection and storage.It looks more comfortable in the photo.

When Jiang Yuan had finished watching, Lu Jie continued: "The body was found in the Jinshui River. The Jinshui River has a large flow of water, and the river is also extremely long. We searched upwards 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 disadvantage of the algae community. It is different from the pollen map, because the algae are highly concealed and cannot be seen directly, so it can only be used as a proof, not easy to use. to be a directional tool."

Pang Jidong understood this aspect, nodded and said: "I can only find the place, and use this algae community to prove that it is here. You can't find the place directly through the algae community."

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

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

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

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

As for the real academic research and judgment, it is too much to try to teach Pang Jidong.

"Then what should we do now?" Lu Jie asked.Jiang Yuan is a forensic doctor, and 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 making the skull restoration, and then comparing the photos of the missing persons, we may find something. Forensic anthropology is also possible. One Meaning, it’s better to use it together.”

Forensic doctor Lu Jie smiled. Yes, Jiang Yuan knows about skull restoration, and Jiang Yuan also knows forensic anthropology. Although they both belong to forensic medicine, it would be too much to refer to forensic medicine to understand skull restoration and forensic anthropology.Everyone is educated, why don't you go to Tsinghua University?

Jiang Yuan said a word, and then said: "Secondly, we can classify the algae and see if we can limit it to a small group, and then look for the site, which may have a better chance."

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

"Well, let's 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 silicon shell of diatoms." Jiang Yuan made a pang Jidong by the way. Introduced, and then said: "Other algae, we also try our best to classify as many as possible."

Lu Jie nodded blankly.

He extracted diatoms and other algae, but why didn't they classify them before?Of course not because I don't like it!
Among them, there are more than 200 types of diatoms. For algae, it is not meaningful to say a total number. After all, many species do not exist locally, but as a reference, you can look at this data: more than 27000 species.

Even if Lu Jie's head was slapped flat, 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. Moreover, it is not enough to just identify the types of algae in the corpse, and the subsequent bottles of samples will have to be identified.

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

Therefore, Huang Qiangmin sells a one-stop forensic doctor like Jiang Yuan who solves backlogs of homicide cases, which is not expensive at all.

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

Lu Jie followed silently, and also wanted to see what Jiang Yuan did.

He sees……

He looks sideways...

He looked up...

He leaned against Pang Jidong and watched...

night.

When Pang Jidong came back from taking a delivery, he saw Lu Jie crying alone in a corner.

A 40-year-old man, crying like a fat kid with an ugly face, rough skin and short hair, Pang Jidong couldn't help feeling a little sympathetic.

"What's the matter?" 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 it was a young lady, Pang Jidong would most likely say something heart-warming, but a big old man is so ugly, Pang Jidong can only truthfully say: "If you want to compare with Jiang Yuan, you are indeed an idiot."

"He used the nine-step method, and I also use the nine-step method. Why did he screen out more diatoms than mine, and it was easier to identify than my diatoms? Why did he know 200 kinds of diatoms..." Lu Jie said When he was sad, he threw himself into Pang Jidong's arms.

Pang Jidong firmly pushed it away, and said with a smile: "What do I think it is, there are only 200 kinds, just take it easy."

Lu Jie looked at Pang Jidong blankly: "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. Given 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 [-] types of algae." Lu Jie shook his head while talking: "He actually recognized all the algae that still have characteristics..."

"The difficulty... is quite high?"

Lu Jie laughed: "Give you 20 dogs, choose [-] of them, can you name them?"

"Why don't you try to give me [-] ex-girlfriends." Pang Jidong often encountered collapsed suspects and victims, sometimes including the criminal police under his command, and knew how to change the subject.

Lu Jie really laughed out his nasal bubbles, and continued: "He also corrected the immersion time after death...Tomorrow morning, it's time to take someone to take samples..."

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

Pang Jidong just smiled, algae are nothing, pollen is abnormal, but if you want to talk about troubles, look at how troubled the bureau leaders are now.

(End of this chapter)