Hearing this, I then asked: "So, your cafeteria doesn't care about the dishes at windows 5-10, from the selection to the cooking?"

After hearing what I said, Manager Liu nodded helplessly, and then said to us: "Yes, our canteen is only responsible for regular inspections of the dishes, and we can't control others. After all, we signed the contract The contract and how to operate the window are beyond our control."

"Then which hotel is responsible for the student food at windows 5-10? What's its name?" Shen Ling asked additionally, "And your contract, we need to take a look."

"Okay, I'll find it for you right now." After all, something happened in his canteen, and this manager is more anxious than us. Otherwise, if this matter is not handled well, it will be enough for him to stay in the cell for decades.

Soon, the canteen manager took out the contract that was signed at that time. Shen Ling and I took a look and saw that it was a company called Maixiang Food Co., Ltd., not a hotel as the manager Liu said, so I was confused. Said: "Isn't this Maixiang Food Co., Ltd.? Why is it a hotel?"

Manager Liu then said: "Actually, this company was established by the hotel owner in order to sign a contract with us. You can also think of it as a leather bag company. We only found out after signing the contract that there was also a letter of guarantee written by them for us. Here." After saying that, Manager Liu took out the guarantee letter provided by Maixiang Food Co., Ltd. to Manager Liu and the others.

Seeing this, I said directly: "Is this hotel called Jinyu Restaurant?"

"Yes." Manager Liu said.

At this time, Shen Ling said: "I have the impression of Jinyu Restaurant. This restaurant seems to be the oldest Sichuan restaurant in the entire Yaozhou area. It is next to the police station in Yuzui District and next to our H Province Police Academy. At that time, we When I graduated, I went to their house for dinner, and strictly speaking, the cooking quality was pretty average."

At this point, I asked directly: "Manager Liu, we need to take away the surveillance in your canteen. The two of us cannot finish the surveillance in this day."

"I understand, I understand, you can just take it away." Manager Liu was very cooperative with us.

At this time, He Xiaofei and Qi Liu came back and brought two large cages of white mice, so they asked me directly: "How's it going, Xiao Huan, are these enough?"

I looked at the no less than 60 white mice and said directly: "That's enough, let's go and do experiments."

After saying that, I took them directly to the back kitchen of the cafeteria, and then walked to the window where the students were getting food. Since we specifically told the cafeteria staff not to clear these dishes when we came, these meals were still there. They are all neatly placed here.

But it is breakfast after all, so there are not too many varieties of food. However, it can be clearly seen that windows 1-4 are cooked by the school cafeteria, so there are fewer varieties, just simple steamed buns, fried dough sticks and several kinds of food. Simple porridge, while windows 5-10 directly combine Chinese and Western food, so you can get whatever you want.

"Xiao Huan, do you mean to let the white mice try it?" Shen Ling asked as she watched me prepare to take out the white mice.

I nodded and said directly: "The samples of each dish have been taken away by Peng Xin and others, but I think there are still some parts that need to be verified. Let's take a look first and see if my suspicion is correct.

, and then I’ll tell you my thoughts.”

After that, I directly placed all 10 mice on the 10 windows. Soon, after these mice tried breakfast, except for the mice in windows 1-4, nothing happened.

All the mice in other windows showed signs of poisoning, especially the mice in windows 5-7, which died instantly.

After that, I took out two more white mice, put one in the automatic dishwasher, and the other in the washed bowl. Soon, the results came out. Both of the two white mice showed signs of

He showed signs of drug poisoning and died almost instantly.

After that, I directly said to Manager Liu: "In your school cafeteria, are these plates cleaned immediately after use and then used again?"

Manager Liu nodded, and then said: "Yes, we bought the latest and most advanced plate cleaning machine imported from Europe, so this can greatly improve efficiency. But this police officer, is there something wrong with this machine?

"

I shook my head and said directly: "No, it should be like this."

"First of all, the first batch of students who came to eat at windows 1-4 did not come into contact with the breakfast containing poison, so they were fine. The students who came into contact with windows 5-10 were directly exposed to the poison.

Poisoned by poison, but some students bought their meals at windows 8-10, and these windows may not contain a lot of poison, or some dishes do not have poison, so these students are not poisoned, or they are

It's just a slight discomfort." I said.

After that, I walked near the automatic plate washing machine, and then continued: "But here comes the problem. When this part of the students who don't know the reason and show no signs of poisoning, they will put the food with poisonous residues in it."

Plates are placed in the automatic plate washing machine, causing a second cycle of poisoning, and then the entire students in windows 1-10 will be poisoned."

After finishing speaking, I pointed directly to the dinner plates on the bottom layer and said: "The dinner plates on the bottom layer should be the first ones to be washed, and they should not be stained with dirt."

After that, I asked the technician to put on his gloves, take out a dinner plate from the bottom layer, and let the mouse lick it. There was indeed no sign of poisoning.

"Awesome." Shen Ling said directly, "In addition, some students may take part of the food in windows 5-7 and 8-10 respectively, which will contaminate these windows a second time, and then mix in

On windows 1-4, the *** will be all over the entire cafeteria."

I nodded and said: "Yes, although a trace amount of poison can cause death, as a substance strictly controlled by the state, the murderer cannot just take as much as he wants, so the poisoning of the students should be

It's a cycle like this. As for whether this is the case, just check the monitoring."
Chapter completed!