When the female supporting role has a beauty system

Chapter 936 Policewoman 18
He wanted to take the photo and take a closer look, but when he stretched out his hand, he found that it was full of salty smell and seawater. He wanted to withdraw his hand in embarrassment. Tan You grabbed his hand without hesitation and stuffed another pack of cigarettes into his hand: "Uncle, we don't have to be so polite when we go out. Don't be so formal with us."

"Please help us see if you recognize this person."

The third brother was stunned, not knowing whether to be impressed by Tan You's generosity or surprised by Tan You's generosity. Glasses was silently keeping accounts, and had already given out two packs of cigarettes. He would have to talk to Captain Huang about it later. He couldn't let the police pay for it themselves, right?
It was a bit too much to drive Tan You's car out in the afternoon. We can't let Tan You pay for everything.

The third brother just nodded his head in response, took the photo from his eldest brother and looked at it for a few seconds, then suddenly realized: "This is Boss Li, right? This is what he told me."

Yan Jinger was a little excited, but Tan You pulled him and he immediately calmed down. Xiao Zhang was also excited, but he tried to stay calm and thought it was just Lao San's accent problem: "What is this Mr. Li doing here?"

The third brother smiled in a very simple way: "People who come here either come to fish or buy fish. Boss Li buys different seafood than others. He likes puffer fish very much and buys a lot of it. He has bought it many times in the past few years."

Tan You finally figured it out: "So he buys puffer fish every time. How many puffer fish does he buy each time?"

The third brother thought for a moment and said, "I can't remember clearly, but he always ordered a large amount, sometimes thousands of puffer fish. Because he bought so many, I have a deep impression of him. After all, if puffer fish is not cooked properly, it is easy to get into trouble."

Tan You understood it completely. In fact, when he saw Qin Tingting's symptoms, Tan You felt that these symptoms were particularly similar to aconitine poisoning.

In a normal myocardial infarction, the heart will have a large area of ​​ischemia and necrosis. But the deceased Qin Tingting did not have this. Her body was very healthy, all her internal organs were healthy, and except for a small part of her heart that was congested, there was no pathological abnormality in the rest.

It is obvious that Qin Tingting did not die of acute myocardial infarction, but her symptoms are very consistent with the onset of myocardial infarction. This is what bothers the hospital and the forensic doctor the most.

It was just that the autopsy report didn't mention it, so Tan You didn't dare to rashly express his guess. But now that he heard about pufferfish, Tan You immediately connected all the dots.

After all, she had run a pharmaceutical company before, so she naturally knew about the antagonistic effects in biology. In general, tetrodotoxin and aconitine acted as antagonists, with tetrodotoxin activating the human immune system and aconitine inactivating it.

When the two are used together, the human body will not show symptoms of poisoning for the time being, and the effect is just right.

However, tetrodotoxin is metabolized faster, so it will be metabolized by the human body first, and only aconitine toxin will remain in the body, so the body will show symptoms of aconitine poisoning.

That is, through this method, the onset of aconitine can be delayed. As long as the dosage of the drug is controlled well, it is entirely possible to delay the onset of the poison.

After she figured it out, Tan You couldn't help but smile widely. She nodded at Xiao Zhang and Yan Jing'er and said, "I'll make a call. By the way, we'll have dinner in the village tonight. We're at the beach, so we have to have an authentic seafood dinner."

As soon as Xiao Zhang heard it, he knew that Tan You had made a discovery. He followed Tan You's meaning and said, "Okay, I'll call you Third Uncle. Is there a restaurant in your village? Let's order dinner and buy some seafood."

"Captain Lu, what's the budget?"

Tan You searched the pocket of his down jacket and quickly handed out a bunch of colorful bills. Xiao Zhang was happy: "Sure enough, if you follow Captain Lu, you can eat six meals a day."

"If you follow Team Yellow, you'll go hungry nine times out of three days."

Tan You waved his hand, indicating that he would go to make a phone call. Old Huang, who had just arrived at the insurance company, was shocked after receiving Tan You's call: "Are you saying that Li Yongqiang bought a large number of pufferfish? What should we do next?"

"The autopsy did not detect the ingredient aconitine you mentioned."

Tan You thought of the congested heart of the deceased Qin Tingting, and his eyebrows twitched slightly: "Tell the forensic doctor to retest the deceased's heart blood sample."

"Moreover, poison detection does not mean that the instrument will automatically give the result after extracting the blood sample. Instead, the inspector needs to compare the test result with known poisons. It is not surprising that the forensic doctor did not detect it before. Maybe he has never encountered aconitine poisoning."

"But people have been using aconitine for a very long time. Now we just need to ask him to do a new test and compare it directly with aconitine. In addition, we also need to ask him to retest whether the blood of the deceased Qin Tingting contains tetrodotoxin."

"If these two toxins are detected, then the deceased Qin Tingting did not die accidentally, but was completely poisoned."

Old Huang understood, and he clapped his hands suddenly: "Okay, I'll contact the forensic doctor right away. What does Old Yang usually do? He doesn't even know about this kind of professional stuff?"

Listening to Old Huang's muttering, Tan You mourned for the forensic doctor Old Yang. It wasn't that Old Yang was not good enough, but that he was too knowledgeable.

Yan Jinger, who was standing next to Tan You, heard it very clearly. His mind was also quick, and he soon found the suspicious point: "We have confirmed that Li Yongqiang has a record of purchasing a large number of pufferfish, but what about aconitine? How did he obtain it?"

"How does he extract these two toxins?"

Tan You looked at him and said, "Do you think refining poison is so high-end? A certain drug lord was able to refine methamphetamine by himself in junior high school. It's a pure amateur team. As long as you know a little bit of chemistry and biology, it's easy to do it."

"As for aconitine, it is basically extracted from plants in nature. Common plants containing aconitine include Chuanwu, Caowu, Aconitum and Artemisia selengensis."

"For example, Aconitum carmichaelii can even be sold as an ornamental plant."

Glasses cursed, "Poison is everywhere, how can we check it?"

Tan You is optimistic: "We have already investigated so far. It is actually just a matter of looking for clues step by step. It is better than rushing around aimlessly. Besides, Li Yongqiang's true colors have been exposed. The next step is to completely tear off his disguise."

"He wants to extract tetrodotoxin and aconitine. He definitely needs a place to do experiments, and he needs a lot of water and electricity. Just these two points are easy to check."

Yan Jing'er was also an experienced criminal policeman, and he understood everything after Tan You explained it. After Lao Zhang and Lao San and others had decided on dinner, the two of them went to the side to discuss the plan.

Tan You walked slowly along the coastline with her hands in her pockets. She never thought that a case that originally had no clues was about to be solved just by visiting a small fishing village?

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