The aunt who followed all the way to the entrance of the food street also had a question, "You are from the public family, can you ignore this matter, the owner of the 'Night Prime' barbecue restaurant is a scoundrel, and everyone around him is afraid of him, are you also afraid of him?" ”

"Of course we will." Gu Yanan comforted the aunt, "But in a different way." ”

Lu Li and the gray-haired aunt looked at Gu Yanan at the same time, not knowing what special method she had.

At night, the food street is crowded with people.

From the entrance of the food street at Gu Yanan Station, you can see the "Night Primrose" barbecue stall located in the middle of the food street from afar.

Gu Yanan searched in the sea of people, as if he was looking for prey.

Near the food court is a university town, and college students come to eat supper in groups of people in groups of twos and threes.

Gu Yanan saw two college students, a man and a woman, in the crowd, walking together in the food court.

The boy is tall and thin, with a pair of black-rimmed glasses, and he looks polite.

The girl has a watermelon head, less than one meter six, slightly fat, and a round face with a pair of black-framed glasses, which looks very cute.

Gu Yanan selected these two people and stepped forward to say hello.

"Classmate, wait a minute." Gu Yanan showed his work card first, "I am a staff member of the Municipal Center for Disease Control and Prevention, and I want to ask you for a favor." ”

The college student, who was accosted by a stranger, was still a little vigilant, but after seeing Gu Yanan's work card, he relaxed.

The female college student was very enthusiastic, "CDC, I know, I was bitten by a dog last time, and I went to the CDC outpatient clinic to get vaccinated, what do you want us to help?" ”

Gu Yanan took out five hundred-dollar bills, "Help me go to the 'Night Primrose' barbecue stall to buy skewers, if you haven't grilled it, you need each of them, and you want four skewers of each, you just say that you want to go home for barbecue, and they want some spices." ”

The female college student took the money and smiled knowingly, "I understand, you are secretly investigating, don't worry, it's on us." ”

Two college students leave with the money.

Gu Yanan's eyes searched the sea of people again, and at the entrance of the lively food street, a homeless man was sitting on the corner of the street.

The homeless man was emaciated, his long hair had not been washed for many days tied back at the back of his head, and behind him was a sack wrapped in all the homeless man's belongings, and in front of him was a half-worn enamel bowl with a few coins in the bowl, and next to it were two pieces of baked bread that had been given by a well-wisher.

Gu Yanan took out another hundred and walked in front of the homeless.

Aunt stopped Gu Yanan, "Are you going to give him money?" The homeless man had been here for years, had been sent to the aid station several times, and he had to come back, begging here every day for more money than a normal worker. ”

"It's a useful money."

Gu Yanan walked up to the homeless man, leaned down, and put the hundred-yuan bill into the enamel bowl.

The homeless man looked up in astonishment, and had seen a giveaway of one, five, or ten pieces, but he had never seen a hundred alms at a time.

"I'd like to ask you for a favor."

The homeless man looked up at Gu Yanan with a blank face, he was usually used to listening to cynicism and disdain, but he didn't expect that someone could still talk to him in an equal tone.

"Do you know the nightshade barbecue stall in the food street?"

"Well, you know, that boss is a very picky person."

"Do you know where the garbage in his store usually goes?"

"I know, there is a garbage can next to their barbecue stall, and every day's garbage will be thrown in it, and on the second day, there are garbage collectors who come to pull it away, and I often look for food from their garbage cans."

"You help me bring all the garbage from the nightshade barbecue stall today."

"You give me 100 yuan, and let me go and get a bucket of garbage back?" The homeless man asked in surprise.

"Well, can you do it?"

"Yes, the trash can is not watched, and it is easy to get it back."

"Remember, don't let the boss and his clerk find out."

"Understand, just get it back quietly, I'm good at this."

The homeless man put 100 yuan in his pocket, stood up, picked up the sack he was carrying, and walked towards the nightshade barbecue stall in the food street.

Soon, two college students took a large bag of fresh skewers bought from the Yelaixiang barbecue stall and found Gu Yanan.

The female college student returned the rest of the money to Gu Yanan, but Gu Yanan only took the skewers and stuffed the money back into the female college student's hand, "The rest of the money is considered to thank you two for your help." ”

"No, you don't." The female college student stuffed the money to Gu Yanan again, "I have a classmate who once had a bad stomach at that barbecue restaurant, went back to find the boss, and was almost beaten by the boss, you must check it well, and it is our citizens' obligation to help you with disease control." ”

Two college students trotted away.

Lu Li sighed, "I am also a citizen of Lianhai City, why is the quality gap so big?" ”

The aunt, who had been following alongside, stared at the direction of the nightshade barbecue stall in the food street in the distance, and muttered: "There are always a few such annoying rat droppings in a pot of porridge." ”

Soon after, the homeless man also returned with a large black plastic bag.

"Here, this bag is the garbage from tonight's barbecue stall, more than usual, there are a lot of skewers that haven't been eaten, what's wrong with this boss today? It was a waste, this had to be done before, and when the guests couldn't finish eating, he would bake it again and serve it to other guests, which I had seen with my own eyes. ”

The homeless man stared at the complete skewers in the black plastic bag, feeling like his mouth was about to water.

The aunt kindly reminded, "This skewer may be poisonous, don't pick up and eat their garbage in the future, be careful of being poisoned." ”

"Poisonous?" The homeless man looked at the aunt and then at Gu Yanan, looking incredulous, "Why is it poisonous?" Are they trying to hurt people? If they open a restaurant, what good will it do to them? ”

The homeless man had a series of questions, and the aunt was a little impatient, "Why else?" Those black-hearted ones must be in it for money, and I don't know what his skewers are made of. ”

Gu Yanan: "It is true that someone has food poisoning after eating his skewers, but the specific cause of food poisoning needs to be investigated in detail, and these are the evidence." ”

——

Lianhai Center for Disease Control and Prevention, Laboratory.

All kinds of skewers brought back from the food street next to the university town in the eastern side were sent to the laboratory of the physical and chemical group for poison testing.

At 1:00 a.m., during the test, Gu Jiashu called to urge.

"How long will it take to get results?"

"It's coming, another half an hour, what? Is the patient's condition wrong? ”

"Because we are not sure about the specific type of poisoning, we can only treat the symptoms now, and one of the students is not optimistic because he has eaten too much barbecue, and he has symptoms of systemic organ failure."

Gu Yanan was also very anxious after hearing this, "I am in the CDC laboratory now, I am guarding on the side, as long as the results are out, I will call you immediately." ”

Two hours later, the physicochemical results came out.

A large amount of tetramethylenedisulfontetraammonia, which is strong in rats, and a small amount of fluoroacetamide were detected from the gastric lavage juice of four college students.

Tetramethylene disulfone, tetraammonia and a small amount of fluoroacetyl were also detected in the lamb skewers at the nightshade barbecue stall in the food street next to the university town in the eastern district.

The type of poison is very similar to the three-step rat poison detected from the "Tiantian Snack" shop in Xinglong Snack Street.

Is there any connection between the two?

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