National Forensic Doctor

"This maggot is not a local species. Specifically, how do you determine this?" Li Chang asked with a slight tremor.

Although his research topic when he was a graduate student was not in forensic entomology, if he had such a good direction and had a practical project, it would not be a bad idea to retake the Ph.D. examination to do research in this area.

On the contrary, Jiang Yuan lacked some academic sensitivity and was not too interested in the academic itself. He said casually: "The maggots of different local species look different, so you should still be able to tell."

"I know that flies have different distribution areas, but we are called blowflies. There are so many varieties of blowflies, and their distribution ranges are also different. There should be overlap between them. How do you see it... I I mean, do you want to check the books and compare, or do a DNA test? For the sake of accuracy..." Li Chang said softly, and the methods he could come up with were all the most basic methods in the books, so he told Jiang Yuan. At that time, as a graduate student at Zhejiang University, he felt a little bit ashamed.

Jiang Yuan smiled and said: "If you want to submit it for inspection later, you can do a DNA test. This will make it easier to prepare a report. You don't have to look up books. You can recognize the species of blowflies at a glance. As for geographical distribution, there are many books and papers That’s how it was written.”

Li Chang had countless words he wanted to complain about, but he couldn't. Hesitating, he decided to ask the most difficult one first: "If you don't check the geographical distribution in the book, I mean, if you don't rely on the scope given in the book and the paper, How do we determine the distribution areas of different species of blowflies?”

"It's not that we don't rely on books and papers, but they are all references. It mainly depends on the condition of the corpse itself." Jiang Yuan did not talk about such a grand issue, and directly returned to the front line work, saying: "Look at the blowflies on this corpse. , in fact, there are several species. The red-headed blowfly is a low-species species and is generally distributed everywhere. The same is true for the green blowfly, but here are the black blowfly and scarlet blowfly. Although they are also distributed in small numbers locally, you have to See you later."

"kindness?"

"The larvae of the scarlet fly are smaller and less numerous. The second and third instar maggots are obviously thinner. What does it mean? It means that they do not have an advantage in the process of competing for the right to develop on this corpse. The reason Well, it's likely that they arrived too late, or that they were not adapted to the environment in the early or middle stages of the corpse, or both," Jiang Yuan briefly concluded.

Li Chang couldn't help but turn his head to look at the piles of maggot corpses, but he couldn't even tell which maggots were the thin ones, let alone distinguishing which ones were the scarlet golden flies.

Taking humans as an example, 3-year-old children are all small, but which one is small because of their age, which one is small because of their breed (gene), and which one is small because of insufficient nutrition - there are very few variables. Under certain circumstances, both Miao Ruixiang and Miao Ruixiang can be compared, but as the variables increase, the question of who is smaller becomes difficult.

In a human environment, this question is usually asked to parents. For the blowfly, it is its parents who are asking.

The development speed of blowflies of different species is slightly different, and the difference in development speed of different species of flies is even greater.

Li Chang thinks from the perspective of a student, knows the type of fly, and recalls or checks its development speed. This is what a normal scholar would do. But if you see the development speed of the fly, and you try to infer its type and even its development environment, this is too abnormal!

"How...how do you judge this?" Li Chang was looking forward to the moment when he would "hear the truth in the morning".

Jiang Yuan cruelly interrupted his fantasy and said: "This topic is too complicated to talk about. Let's use this as a direction to conduct investigation."

When it comes time to submit to prosecution and go to court, Jiang Yuan will naturally need to explain this issue, but it will also be written material. If necessary, he can find someone to write for him, so there is no need to think about it now.

Jiang Yuan made the final judgment based on the identification of flies at LV6, and this theoretical basis was beyond the understanding of a novice like Li Chang.

Jian Louyuan was unable to get a word in. Now that they had finished their conversation, she hurriedly said, "Captain Jiang, where do you think the first scene was?"

"Baijiang Province." Jiang Yuan answered clearly as he turned over the maggot corpses on the autopsy bed.

Jian Louyuan was stunned and said hurriedly: "Okay."

He didn't expect it to go so smoothly. This is a corpse murder case, how could it go so smoothly?

Jian Louyuan walked out the door while making a phone call, ran dozens of meters away, and took a deep breath, feeling comfortable as if she was alive.

Wei Shijin was left behind. Before he could react, Jiang Yuan waved and said, "Xiao Wei, come here and wash these clothes."

"These are all turned into rags." Wei Shiqu looked worried at the textiles that had been removed from the corpse.

"If you don't know how to wash..." Jiang Yuan looked around and said, "Call Shen Yaowei to come over and teach you."

Miao Ruixiang wants to cook the corpse here, and the one who is more familiar with and good at washing clothes is Shen Yaowei.

After a while, Shen Yaowei entered the door with his nose covered.

"Come on. Captain Jiang said he wanted to take out these clothes and identify the brand or type..." Master Wei said roughly.

Shen Yaowei breathed a sigh of relief and looked at the clothes soaked in corpse water with a sad expression on his face.

The health teacher muttered: "This is purely a forensic job."

"Although Captain Jiang transferred his work to us, he mainly wanted to train us." Shen Yaowei said.

"Do you think it's training?" Wei Shijian raised his eyes and said, "Captain Jiang's technology is indeed amazing, but aren't the forensic doctors usually responsible for the clothes of the corpse?"

"Now the forensic doctors are also doing it, we are just OEM." Shen Yaowei said, and then said: "Credits will not fall for no reason, opportunities will only be given to those who are prepared."

Wei Shijian smiled: "Only work falls for no reason, where is the credit."

Shen Yaowei smiled contemptuously.

Wei Shijian instantly interpreted Shen Yaowei's expression, and said more seriously: "You have lost something recently? Third-class merit."

"I am not talented, second-class merit." Shen Yaowei smiled lightly, his voice was clear and loud.

Both parties were talking casually, and when they said this, they also raised their heads naturally.

Shen Yaowei's eyes met Wei Shixun's, and Wei Shixun's pupils met Shen Yaowei's eyes, and both of them looked serious.

"You deserve a second-class merit?" Wei Shixun looked Shen Yaowei up and down and said, "A second-generation police officer, right?"

"If Jiang Yuan says it's worth it, then it's worth it." Shen Yaowei smiled: "Are you a Brahmin from Lanyue City?"

Wei Shixun looked up and said, "Kshatriya. What did you get for the second-class merit?"

"Loyalty and hard work." Shen Yaowei answered very devoutly.

Wei Shixun smiled.

Shen Yaowei looked at Wei Shixun calmly.

Wei Shixun smiled for a long time, and said in surprise: "Really?"

"Okay. It doesn't smell so bad anymore, wash it." Shen Yaowei said, took the brush, and began to try to peel the rotten flesh from the clothes.

Wei Shixun stood silently by and watched for a few seconds, then began to brush the belt.