Profiler 2: Criminal Investigation Brigade

In general kindergartens, multiple cameras will be installed.After the investigation and evidence collection, Jiao Yang asked Mo Ke to bring the latest surveillance video in the park back to the team.

It was already night, and the police force received feedback from the Central Hospital.

Several children who reacted more were poisoned by arsenic trioxide.Although the content is extremely small, arsenic trioxide is the chemical name for "arsenic".

This time, the nature of the case changed.Sure enough, someone was poisoned!The air in the police force suddenly became tense.

On the morning of the second day after the incident, the police went to the Little Doctor Kindergarten and asked Shu Lijuan, the director of the kindergarten, and her main staff to learn about the situation.

Shu Lijuan said disdainfully: "Jiang Li is stingy and stingy, and she talks big and is very mean to the employees. I knew a long time ago that something will happen to her, or something big will happen!"

Jiao Yang said: "Then did you poison the Lantianlan Nursery, or ordered the staff to do so?"

"Of course it's impossible!" Shu Lijuan said: "Officer, we are favored by a powerful foreign educational institution, and we are going to join forces soon. How could I cause trouble at this time?!"

Jiao Yang confirmed this situation through the Bureau of Industry and Commerce and the Bureau of Education.The police team talked with the staff of Little Doctor Kindergarten one by one, but did not find anything unusual for the time being.

In the afternoon, the test results from the physical evidence side came out one after another. All the food in the Lantian Road Kindergarten was fresh and normal, and there was no spoilage, and no chemical tissue of arsenic was detected.

Where did the poison come from?This is bizarre.

Jiao Yang decided to interrogate Liu Jinyong who was reported by others.

As soon as Liu Jinyong was invited to the police station, he yelled: "What, you still suspect me of poisoning? I walk upright and sit upright, how could I do such a thing? This is clearly the retribution of that old woman Jiang Li! Who told her It's okay to fire me!"

Jiao Yang said: "According to Jiang Li, you were dismissed because you made a mistake with drinking."

"She's just looking for a reason!"

Liu Jinyong said: "It's all my fault that I drank alcohol and told the truth to my parents. When they recruited people, they promised to give their children three meals, two meat and two vegetables. But Jiang Li, an old lady, uses some duck breasts, Chicken racks, chicken necks, pork lungs, pork livers, etc. are very cheap things to make meat dishes. Anyway, children don’t understand, these things are eaten at home, and they think they are novel. When I told the parents, they said They all came here to make trouble, looking for her to change food. Doesn’t Jiang Li hold a grudge against me and want to quit me?!”

Jiao Yang said: "Then what did you do in the kindergarten on the day the case happened?"

Liu Jinyong said: "I forgot to take the key when I went out, so I asked my wife Wang Xia for the key!"

After sending Liu Jinyong away, Jiao Yang asked Mo Ke who was in charge of reviewing the videos in the park.

Mo Ke confirmed Liu Jinyong's statement and also said that he did not enter the operation area of ​​the back garden.

As a high-end kindergarten, the monitoring in the park is still very comprehensive.All surveillance videos were checked that day, and no one in the garden was found to be acting abnormally.Further expanding the scope of the inventory in the kindergarten, no device that can slowly release poisonous gas was found.

Thinking of what Liu Jinyong said, Jiao Yang had an idea, and brought the children's meal record form from the kindergarten from the confiscated evidence.

He discovered that about three months ago, some changes had indeed taken place in the food prepared for the children in the garden.As Liu Jinyong said before, it was often mixed with some relatively cheap meat dishes.Afterwards, the recipe changed significantly. These cheap meat dishes were all gone, replaced by aquatic products such as sea red clams, razor clams and river prawns.

Aquatic products...Jiao Yang suddenly scanned, and it was written on the corner of the meal record that in order to supplement vitamins and other trace elements, there would be a glass of fruit juice for the lunch snack every day.

Jiao Yang turned to the end and looked at the juices in the last few days. The juice on the day of the crime was orange juice, the day before it was apple grapefruit, and the day before that was kiwi and banana.

Jiao Yang suddenly understood, "I know how the poison came from!"

Lu Yuanli couldn't help but turned to look at him.

Jiao Yang said in a deep voice, "Have you seen the movie "A Tale of Two Foods"?"

Lu Yuanli frowned and said, "I haven't seen it, I've heard of it. You mean to use food to generate and restrain each other to produce toxicity?"

"Yes."

Jiao Yang said: "Because of water pollution and other issues, it is inevitable that there will be some heavy metals and other toxic residues in shelled aquatic products such as shrimps and crabs, such as pentavalent arsenic. Vitamin C has a strong reducing effect, and taking large amounts at the same time may cause Convert pentavalent arsenic into highly toxic trivalent arsenic, commonly known as arsenic.

Of course, this is not enough to eat one or two meals, it needs a long-term and massive accumulation process.I watched the recipe change for three months.Moreover, in the past three months, the daily fruit juice snack must contain a fruit with a very high vitamin C content. I think this is unlikely to be a coincidence, but artificial.

There have been reports of people being poisoned after eating lemon shrimp, so although it is difficult, in theory, it can be done.

Jiao Yang immediately interrogated the purchase of the two cafeterias, and Han Zhen yelled: "Officer, how can you wrong us so much? We are all doing this for the sake of the children, how could it be harming them?!

Some parents came to make a fuss before, saying that we only ate some cheap leftover meat dishes, and the meat was not fresh. After eating, the child had a stomachache, so we changed the recipe.

He Shuyi asked me to buy more seafood, which looked high-grade and nutritious, and they were both frozen and fresh.Even if something happens, smelly fish and rotten shrimp will not hurt people, it is better than eating meat, and has a high safety factor.I try to match as many shrimps, razor clams, and clams as possible for the children!And when you talk about fruit, the extra meal at noon is to supplement vitamin C for the children. Of course, you must choose some fruits like grapefruit and oranges, otherwise they are full of sugar. What's the use of drinking them? ! "

What Han Zhen said made sense, but Jiao Yang keenly caught a name, He Shuyi.

Jiao Yang interrupted Han Zhen and said, "Who is He Shuyi you're talking about? Is she also from your garden?"

"Yes!"

Han Zhen replied: "We are fellow villagers and live in the same dormitory. She is the teacher of the small class in the kindergarten."

The students who were poisoned mainly happened to be from the first class.

At this time, another canteen purchaser who had been silent all this time suddenly said, "He Shuyi, she fell in love with the director's son and broke up again."

Before, Jiang Li, the director of the school, made it clear that she was holding a wedding for her son.Then, He Shuyi is suspected of committing a major crime!

Jiao Yang immediately asked Yu Xiaoguang and others to go to the kindergarten, restrained He Shuyi, and searched her dormitory at the same time.

He Shuyi is a 23-year-old young girl with a beautiful appearance and very delicate appearance.

However, as soon as Jiao Yang looked at her, he immediately found that she always shifted her eyes away with guilt.

Jiao Yang said: "He Shuyi, this time your kindergarten students were poisoned, was it you who poisoned them?"

He Shuyi jumped up and said, "Officer, what are you talking about? I'm just a teacher in the small class. I'm neither a childcare worker nor a canteen purchaser. There are videos in the garden. I've never been to the backyard. How can I poison the children?" ?!"

Jiao Yang nodded and said: "You are very thoughtful, so you took advantage of the opportunity of being a fellow villager with Han Zhen, who purchased the cafeteria, and induced her to add more shelled aquatic products such as river prawns and clams to the children's food, as well as daily For fruit juice snacks, choose fruits with high vitamin C content. In the process of accumulating over time, when the content of arsenic trioxide in children exceeds their tolerance range, symptoms of poisoning will appear. "

He Shuyi bit her lip and said, "What's the benefit of me doing this? I have no grudges against the dean, the children, or other teachers and parents!"

Jiao Yang said: "For example, being abandoned by the principal's son all the time, the lover is about to get married, but the bride is not you. You also face the danger of being dismissed because of being an eyesore, so you simply took revenge and asked Jiang Li's kindergarten to fail. Go down. Is that reason enough?"

He Shuyi trembled all over, "I admit that I fell in love with Jiang Li's son and broke up. Now he is going to get married, but I am young, I can't find any kind of man, and there is no need to stay here hang from a tree!"

At this time, Yu Xiaoguang and Hou Xiyong appeared outside the interrogation room together.When Jiao Yang saw them, he knew that he had found the evidence.

When Jiao Yang came out, Hou Xiyong gave him a stack of printed materials, all of which were found in He Shuyi's dormitory, such as browsing various toxic substances, arsenic trioxide, industrial salt, etc., and inquiring about food poisoning caused by shrimp and vitamin C, etc. News of the record.

In the end, it was a medical record of abortion, which proved that He Shuyi had just had an abortion three months ago.

Jiao Yang frowned, turned around, took the evidence in front of He Shuyi and said: "This time, a total of 27 children were poisoned, 5 of them were seriously ill, and now there is a four-year-old boy, Xiao Mo, who is lying in the intensive care unit." room.

Xiao Mo is a very obedient child, never picky eaters.Eat clean meals and juice every time.He trusted his teacher so much, why did you kill him?You lost your own child, sad and hopeless, why do you want other parents to experience this pain? ! "

He Shuyi looked at the miscarriage medical records, and cried out with a "wow", "He lied to me, he lied to me that getting married with a big belly is not good-looking, and after the miscarriage, he married me! But he broke up with me in a blink of an eye, saying that the director is not good Agree with the two of us! Only then did I know that he knew the daughter of a rich real estate agent and had been with someone behind my back. That woman is also pregnant, so they can persuade her father to get married. He tricked me into having an abortion!

I have no children of my own, and I have no boyfriend. Jiang Li is still planning to stabilize me now, and fire me as soon as they get married.There is no such cheap thing. I see that such a big incident happened in their kindergarten, and so many children were poisoned. Will anyone dare to come here in the future? ! "