wavenovel Chapter 546 Plant DNA
Chapter 546 Plant DNA
Chapter 546 Plant DNA
A single rich foreign man without a wife was taken away. Pang Jidong looked at his back, and his aura suddenly cooled down.
Like a student who had exhausted all his strength and completed all his summer homework in three days, he stood still, lost the strength to speak, and had no motivation to do anything.
"What's wrong?" Jiang Yuan's EQ went online, and asked Pang Jidong with concern.
He still has to continue to study, it is impossible to stop.Of course, it's not okay to be weak like this.
Pang Jidong unbuttoned the discipline button, loosened his shirt, and said, "It's just that I'm not ready to arrest the suspect."
"What are the preparations for this?" Jiang Yuan smiled.
Pang Jidong couldn't help recalling the criminal suspects he had captured, and also smiled: "That's right."
Jiang Yuan winked at Mu Zhiyang and asked him to go up to comfort Pang Jidong.
Mu Zhiyang is a bit embarrassed, let him block bullets, he is quite skilled now, but you say let him comfort others...
He has almost nothing accumulated in this area.
Mu Zhiyang thought about it, and said, "Team Pang, the case has been solved, let's celebrate together tonight, shall we sing K?"
Pang Jidong smiled wryly: "This kind of case can only be considered solved if it can be submitted for inspection. When foreigners are involved, the prosecution's requirements for evidence must be very high, and maybe we will be asked to supplement the investigation."
As he spoke, he looked at Jiang Yuan.
Jiang Yuan lowered his head to prepare for the survey, as if he hadn't heard his words at all.
Pang Jidong then asked directly: "Team Jiang, can we get evidence? It'd better be conclusive."
Jiang Yuan then asked: "You have been studying forensic botany for a while. What evidence do you think we have obtained now that can be conclusive?"
Pang Jidong was stunned.
Didn't I ask the question?Why was it asked back?
Shall I answer then?
The scalp started to itch again...I have to go back today and change the shampoo...
"I think it may be more difficult to convict with pure plant evidence." Pang Jidong answered after thinking for a long time.
"Why?" Jiang Yuan asked back.
Pang Jidong said: "Forensic botany, I'm still not familiar with it in China. If the pollen map is used to convict, don't we have to explain it? In terms of argument..."
"It is indeed possible." Jiang Yuan nodded.The judicial system is an industry that is particularly slow to accept new things. It can also be explained by only liking to use mature technologies, or by distrust of technology itself, or distrust of everything.
Things like DNA have already been applied very quickly, and it is more than 10 years too late. Moreover, there have been many arguments and see-saws in the middle.Others, such as recording evidence, are still being seen and seen, and the certification of evidence in the computer field is also very slow, including evidence such as WeChat chats, which are widely used in the investigation stage, and court arguments are still very complicated.
Pang Jidong actually wanted to hear a negative answer from Jiang Yuan, but he didn't expect Jiang Yuan to say the same, and he suddenly became worried.
"I'll do a site survey first. However, during the interrogation, I have a suggestion." Jiang Yuan dressed neatly, taking samples, and said, "During the interrogation, we can start with plant DNA."
"Plant DNA..." Pang Jidong hesitated for a moment, lowered his voice, and said, "Are there many plants with the same DNA?"
Jiang Yuan clicked his tongue twice, and couldn't help but look at Pang Jidong differently: "It's been three days since Shibai, you really listened to the Pang Da team."
"Hey... You said it so hard, I can't remember it." Pang Jidong rubbed his head and smiled. Although he didn't know why Jiang Yuan taught him something, Pang Jidong was still grateful.He is like a wild duck that has been adopted for a short period of time. Although it is hard to say it in his mouth to those who are willing to feed him, he has said thank you many times in his heart. If the speed of being forced to feed him is slower, thank you will be more a bit more.
Mu Zhiyang stared at him with wide eyes, his eye circles were turning red, and said with a smile, "What does the Pang Da team mean? I didn't even understand it."
Jiang Yuan then looked at Pang Jidong and said, "Team Pang Da, let me tell you."
Pang Jidong sorted out his language, as if answering an exam question, and said: "Because plant reproduction is not necessarily sexual reproduction, many of them are asexual reproduction. Therefore, sometimes the dominant species will continue to expand, as if watching A large piece of willow, if you check the DNA, maybe they are all the same, rose, potato, poplar, and apple trees are all similar. In addition, there are factors such as the distance of pollen drifting, so I want to use the DNA of a single plant to prove It’s still a bit difficult to come here.”
Jiang Yuan nodded, expressing his satisfaction with Pang Jidong's speech.Although there is still room for discussion, but in just a few days, the answer to this level is quite good.
Pang Jidong also had a great sense of accomplishment, and he commented naturally, saying: "Nowadays people are spoiled by DNA, and they always want 100% accuracy. How can there be such a high accuracy rate? Until now, some media have seen If there is no DNA evidence, they will know DNA..."
When Pang Jidong came to this point, he came to his senses and said, "You are planning to make DNA of all the pollen you found, and then prove it? This is actually appropriate. Some plants reproduce asexually, and some don't. Moreover, if the DNA of various plants also matches, it cannot be explained by coincidence."
"And..." Jiang Yuan added: "I guess the suspect doesn't necessarily understand biology, does he understand that plant DNA is different from animal DNA?"
Pang Jidong's eyes lit up. Yes, this thing is so difficult. If he hadn't supplemented his biology textbooks at night in the past few days, he would have been dizzy for 49 hours a day.
The owner of the single-family villa in front of him, at first glance, looks like the type with mentally ill parents and rich parents, so just cheat him.
"I called the interrogator and arranged the story of the DNA match for him later. Most people hear that there is a DNA match, and most of them will explain it." Pang Jidong said, laughing, suddenly there is a kind of intellectual superiority feel.
Jiang Yuan also smiled and said: "Actually, it doesn't matter if he understands, if he understands, he will be even more afraid."
The pollen map is determined, which means that there are many kinds of plant DNA matching. Even if the uniqueness of plant DNA is not as strong as that of animal DNA, such a large number of plant DNA matching is still very enough, not to mention the problem of proportion.
To say the least, explaining forensic botany to prosecutors and judges takes a million bits and pieces of energy.Therefore, if a confession can be corrupted, that would be the best.
It should be said that Jiang Yuan led the people and began to conduct a detailed on-site survey, taking a large number of samples.
When investigating the pile of fallen leaves in the backyard, Jiang Yuan even dug out a pile of bones from it.
"There are no human bones." Jiang Yuan quickly went through all these rotten bones or half-rotten bones. LV3's forensic anthropology classifies them extremely quickly.
"No wonder he smells bad here. He uses the smell of rotten leaves to cover up the rotten smell of these things." Mu Zhiyang's heart felt cold when he saw it. In such an environment, it is not a problem to deal with a lot of people. He couldn't help but ask: "Is this guy practicing or something?"
"Maybe it's an experiment, testing the decay time of the corpse or something." Jiang Yuan's first thought was the corpse farm.
For many things about the human body, human research is insufficient.Medical ethics is a very complicated thing. There are not many forensic doctors who can overcome it, and even fewer can do experiments.
A suspect who is willing to test key data such as the decay time of the corpse in the field can already be called commendable.
"It's okay..." Mu Zhiyang was speechless after speaking.
Pang Jidong even muttered: "I don't know what he has been doing for more than a year."
(End of this chapter)