"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 ours is a blowfly. There are so many varieties of blowflies, and their distribution ranges are also different. There should be some overlap between them. How do you see it...
What I mean is, do you want to check the books and compare, or do a DNA test? For the sake of accuracy..." Li Changyue spoke softer, and the methods he could come up with were all the most basic methods in the books, and he told Jiang Yuan
When he listened, 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 should be 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 range 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.
, there are actually 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-faced 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 summarized.
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. But for the blowfly, it is exactly its parents who are asked.
The development speed of different species of blowflies 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. Knowing the type of fly, recalling or checking its development speed is what a normal scholar would do. But if you see the development speed of the fly, you can infer its type, and even
Given its developmental environment, this is extremely abnormal!
"How... is this judged?" Li Chang was looking forward to the moment when he would "hear the truth".
Jiang Yuan cruelly interrupted his fantasy and said: "This topic is too complicated to talk about. Let's start with this as the direction for investigation."
When it comes time to submit to prosecution and go to court, Jiang Yuan will naturally need to explain this issue, but that will only be in writing. 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 LV6 flies, and this theoretical basis is beyond the understanding of a novice like Li Chang.
Jian Louyuan was unable to get a word in at the side. Now that they had finished their conversation, she hurriedly asked: "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 was a corpse murder case, how could it go so smoothly?
While making the phone call, Jian Louyuan walked out the door, ran dozens of meters away, and took a deep breath, feeling comfortable as if she had come to life.
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 worriedly 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 person 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 that we should take out these clothes and identify the brand or type..." Master Wei said roughly.
Shen Yaowei breathed a sigh of relief and looked at his clothes soaked in corpse water, his face full of sorrow.
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.
"You think it's training?" Master Wei raised his eyes and said, "Captain Jiang's skills are indeed great, but isn't it usually the forensic doctor who is responsible for the corpse's personal clothes?"
"Forensics are also doing it now, we are just OEMs." Shen Yaowei said, and then added: "The credit will not be handed down for no reason, and opportunities will only be given to those who are prepared."
Master Wei smiled: "The only thing left behind for no reason is work. There is no credit for it."
Shen Yaowei smiled contemptuously.
Wei Shijun instantly interpreted Shen Yaowei's expression, became a little more serious, and said: "Have you forgotten something recently? Third-class merit."
"No talent, second-class merit." Shen Yaowei said lightly with a smile, and his voice was clear and round.
The two sides were talking naturally and casually, and when they said this, they also naturally raised their heads.
Shen Yaowei's eyes entered Wei Shijin's eyes, and Wei Shijin's pupils entered Shen Yaowei's eyes, and both of them looked serious.
"Are you worthy of a second-class meritorious service?" Guard Master Jin looked Shen Yaowei up and down and said: "Second-class police officer."
"Jiang Yuan said it's worth it." Shen Yaowei smiled: "Are you a Brahmin from Lanyue City?"
The guard commander raised his eyebrows and said, "Kshatriya, what did you get in exchange for the second-class merit?"
"Loyalty and hard work." Shen Yaowei answered piously.
Master Wei smiled.
Shen Yaowei looked at Master Wei calmly.
Wei Shijun laughed for a long time and said in surprise: "Really?"
"Okay. It doesn't smell that bad anymore. Let's wash it." Shen Yaowei said, taking the brush and starting to try to peel off the rotten flesh from the clothes.
Master Wei stood aside silently and watched for a few seconds, then began to brush the belt.
