This woman, supported by the old mother, came to the hospital with her stomach covered, her expression looked very painful, covered her abdomen with her hands, walked and stumbled, and the doctor saw the situation and hurriedly let the woman lie down, and

This woman came to the hospital with her stomach covered with the support of her old mother, her expression looked very painful, she covered her abdomen with her hands, walked and stumbled, and the doctor saw the situation and let the woman lie down and asked her about the situation. The mother said that her daughter had a stomachache since last night and had been vomiting up and down diarrhea. The woman told the doctor with difficulty that he had recently eaten hot pot, and the doctor deduced that he should have eaten unclean food and had acute gastroenteritis, and suggested that the woman first be hospitalized for observation. But on the way to the inpatient department, the woman suddenly became ill and fell to the ground, and the mother felt that something was wrong and immediately called the police.

From the mouth of the deceased's mother, it was learned that the deceased's name was Kobayashi, twenty-five years old, and a teacher. On the fifth day, she and her two girlfriends ate hot pot outside, and soon after returning home, they had abdominal pain and vomiting. But the strange thing is that the two girlfriends who ate hot pot with Xiaolin were actually safe, which made the mother think that her daughter's death was not so simple. The forensic examination results showed that Kobayashi was indeed poisoned, but the specific poison was not clear, and the poison could only be fixed on the alkaloid of the metabolic block.

The signs of the woman's poisoning were very strange, and if she had been poisoned, why the other two were not at all uncomfortable. According to the analysis of the police, poisoning is nothing more than three situations, suicide, homicide and accidental eating, suicide must be ruled out. If it was suicide, she would not go to the hospital, and accidental ingestion is unlikely. At present, it seems that Kobayashi is likely to be killed by him. According to the mother's recollection, the daughter returned home around six o'clock that night, and learned during the chat that she had gone to eat hot pot with her girlfriends Xiaohong and Xiaoyu. After hearing this, her mother asked her to eat a piece of watermelon to go to the fire, who expected that just after eating a bite of watermelon, Kobayashi felt a stomachache. On the way to the hospital, her daughter told herself that she would go straight home after eating the hot pot. She and Xiaoyu sat in a taxi, Xiaoyu was close to home, so she got out of the car first, and then continued to take the car back home. Their relationship has always been very good, she herself can't figure out how, the three of them eat hot pot together, the two of them are fine, but her daughter is poisoned.

On the other hand, the forensic doctor made a major discovery, and he found a needle eye on the orange juice box that Kobayashi had drunk, which had been covered by chewing gum. The murderer injected the poison through a syringe, then sealed the eye of the needle with chewing gum, and finally found a very peculiar alkaloid in the blood component, called colchicine, and this orange juice box contained a large amount of colchicine. The medical examiner told the police that the poison was very rare and had a faint odor in the mouth. But if you drink this poison with this slightly bitter orange juice, it means basically nothing. It seems that this murderer knows a certain amount of drug knowledge

After investigation, the police found that the orange juice was bought by Xiaoyu, and the police found Xiaoyu to inquire about the orange juice. She said she bought orange juice at the commissary next to the hot pot restaurant. At that time, Xiaolin and Xiaohong were watching her buy it. Finally, under the pressure of the police, Xiaoyu said that two years ago, Xiaolin and Xiaohong fell in love with a man at the same time, but in the end, the man chose Xiaolin. Because Xiaohong had not been in contact with Xiaolin for a long time at this time, was this a love killing?

On the other side, the police found the taxi driver that day, and the driver told the police that as soon as the two girls who got on the bus got into the car, they drank the orange juice in their hands. Suddenly the girl sitting in the back row complained, how is orange juice a little bitter? So the girl in front of her, the deceased Kobayashi, exchanged orange juice with her. The police also found that the box of poisoned orange juice and the commissary's orange juice production number were exactly the same. This shows that the box of orange juice that Kobayashi drank was not bought at the commissary at all, but was dropped behind his back. It seems that the biggest suspects at present are her two girlfriends Xiaohong and Xiaoyu.

Xiaohong told the police that although she had fallen in love with a man at the same time as Xiaolin, that had become a thing of the past, and the friendship between them had far exceeded love. She would not kill Kobayashi, and she thought that the police were wronging her. Looking at the excited Xiaohong in front of him, the police seemed to think of something, so the poisonous orange juice would not be given to Xiaolin, but to Xiaohong. From this point of view, Xiao Yu may be the real murderer, but what is her motive for killing Xiao Hong?

In order to find out the facts, the police used the radical method to force Xiaohong to tell what happened between her and Xiaoyu. Xiaohong accidentally said an important clue, that is, she borrowed 300,000 yuan from the company's account to Xiao Yu to speculate in stocks, but unexpectedly all 300,000 stocks were lost, Xiao Yu lost money in stock speculation, because she did not want to pay back, so she wanted to kill a good girlfriend. And this borrowing money is only known to Xiaohong alone, killing her, and the matter has since disappeared. Who expected that yin and yang mistakenly poisoned her girlfriend Xiaolin, and in the end, Xiaoyu also paid for what she did.

This is the storyline of the movie "Criminal Police Mission"