Panda Criminal Investigation Team

When returning to the police station,

Colleagues are not off work yet,

They stopped what they were doing,

turned to look at them,

Hao Jinyang and Xiao Mi are like migrant workers who have just entered the city.

Hao Jinyang had a water dispenser strapped to his back,

Holding a hot water bottle in his left hand,

Holding a large washbasin in his right hand,

In the washbasin was a set of towels and a toothbrush cup, and an oily plastic bag was hung on the only little finger that was vacant.compared with him,

Xiao Mi was a little better. She was holding a bucket nearly half filled with water, and her backpack was on her shoulders.

And two big and heavy plastic bags,

It contains water glasses, pots and pans, drinks and snacks and other messy things.

They bluffed and piled all these behind the territory of the second team,

Report to the team members in your group: "We are back!"

The team members turned their heads to look at the things they brought back,

Wang Haili next door also moved his butt,

Sliding the chair over: "It's rare to be embezzled once,

Why can't you bring back something good! "

Afraid of someone being greedy for cheap,

Hao Jinyang took a step back,

He quickly protected the water dispenser, but Wang Haili was not interested in this broken machine at all. He pointed to a scrape on his eyebrow and asked them: "Do you see any changes on my face?"

"Uh..." Hao Jinyang scratched his head: "Beating by your wife?"

Xiao Mi followed and nodded.

"What nonsense! Give you another chance,

Guess again? "Wang Haili laughed,

The originally short and flat chin lengthened slightly, but before he had a chance to hear the two people's answers, the chair under his buttocks was kicked away by Yu Renjie.The quality of his chair is particularly good, and the rollers under it took him to slide two meters away.

"Your Uncle Wang was hit by a bicycle on the way to work today. The collision knocked off his glasses. Uncle Wang got compensation under the mediation of his colleagues. Passers-by paid him 500 yuan, plus a pair of glasses. New glasses." Yu Renjie spoke quickly, and instantly broke through Wang Haili's trick.

"Yu Renjie, you hate it!" Wang Haili moved the chair back again, and said with a smile: "I asked that idiot to match me with a pair of 2000 yuan glasses, and I chose the most expensive frame in the store! Hey, 5000 yuan That pair is out of stock... the one I broke was made in the glasses city near the train station, and the total cost of lenses and frames is less than two hundred..."

"Stay there!" Yu Renjie kicked him away again, he turned to Hao Jinyang and Xiao Mi: "Did you find anything today?"

"Yes, yes!" Hao Jinyang nodded his head, but before he could make a statement, Xiao Mi slapped him away. Xiao Mi grinned, pointed to a pile of things on the ground and said, "These are all The two of us carried it back!"

Hearing the commotion outside, Cheng Bin also stepped out of the office and listened to Xiao Mi's itinerary for the day together with colleagues from the second team.She talked about how the school leaders met them and talked about the lunch.

"During the meal, they went around and around, and finally conveyed the school's expectations to us tactfully. First, this case must be investigated carefully, the criminal must be found as soon as possible, and an explanation must be given to the leadership of the Education Bureau. After all, Li Qianqian is the deputy director. Second, they don’t want us to disclose this case to the media. When reporters come to discuss the case and write news, they let us choose to keep our mouths shut. It's all a blemish."

When she said this, Hao Jinyang blinked his eyes desperately, but he only understood the first meaning of the meal he had with Xiao Mi.

"There are five people who got close to the victim, three of them are her roommates, He Jing, Yang Ying and Wang Xiaoqi; one is her boyfriend, Lin Hai; they are all in the same class. There is also one She is a student in class three, named Zhou Yan, who is close to Li Qianqian, and often eats with her." Xiao Mi analyzed confidently: "As the saying goes, diseases come from the mouth, and Li Qianqian must have eaten something bad. Can be poisoned, if the cafeteria or restaurant is poisoned, she will not be the only one poisoned... So those who can poison her are probably among these few people. However, we are smart enough, and all things that may be poisoned , are already here."

She spread her arms and showed everyone the many things they brought back: "This bucket of water was replaced a week ago. At that time, Li Qianqian was not hospitalized, and the water dispenser hadn't been washed for several months. It was dark inside. ...and these toothbrushes, washbasins, teacups, lipsticks... She drank half of this bottle of honey grapefruit tea, it might be poisonous!"

"Thank you." Cheng Bin's voice was perfunctory: "Do you have any plans for the next step?"

Hao Jinyang finally got a chance to speak: "We think this way. The three roommates who are most likely to be poisoned are Li Qianqian's three roommates. After all, they live together in daily life, and it is easy to poison them. I talked to them today. I feel that they are indeed hostile to Li Qianqian and have a bad relationship with the counselor, so we have to pay close attention to their whereabouts. For these evidences, we will move to the forensics department for testing in a while. If it is confirmed that there is poison in them, we will You can call the little girls into the police station for questioning, they are all children who have not entered the society, and they should all be recruited in a short time." He said this because Yu Renjie had easily poisoned the biscuits. The prisoner persuaded him to surrender.

Cheng Bin turned his gaze to Xiao Mi: "Do you think so too?"

"Yes!" Xiao Mi held her head up, like a puppy waiting for her master's praise: "We discussed this together on the road, and it was the two of us who came up with it together."

But Cheng Bin didn't mean to praise her at all. Instead, he hooked his fingers to Yu Renjie: "Did you hear that? This case is still handed over to you."

Unconvinced, Xiao Mi stood in front of Cheng Bin and stamped her foot until the water dispenser made a loud noise: "Why, what did we do wrong? As long as the poisoned thing is found out, the case will be settled soon." It can be broken!"

"Are you sure that thallium can be found in the things you carried back?" Cheng Bin sneered and said, "Don't forget, you are facing adults, or top students from prestigious universities, and your brains will only be smarter than yours. They will be dumber than you! Even if the poisoned thing is in the dormitory, will they obediently wait for you to test it? And the water dispenser you brought back, if it is really poisonous, they can still drink it until now? You Sitting in the dormitory for so long, haven't you had a sip of water?"

Xiao Mi and Hao Jinyang did drink several glasses of water in the dormitory, all from the water dispenser behind them. At this moment, Xiao Mi's face turned red and white with embarrassment, and she almost cried out.

Yu Renjie coughed and said: "The newcomer has no experience, so it's good to do this. When I first started this job, I was stupider than them!" Accidentally said the word "stupid", Yu Renjie covered his mouth Mouth: "I mean...not that you're stupid

... "

"They are really stupid, but you are right," Cheng Bin unexpectedly affirmed his statement: "Everyone has a process of growing up, I am really too impatient. So, Yu Renjie, you put this Talk to them about the idea of ​​the case.”

Yu Renjie was a little unaccustomed to Cheng Bin's gentleness, he was stunned for a while, and said, "I think we can start with the source of thallium."

Metal thallium is highly toxic, and its lethal dose to humans is only 12 mg/kg. It is commonly found in thallium salts.my country has strict controls on the use and dosage of thallium and its related compounds. There are not many companies that can produce and use thallium, and they must complete relevant certification before conducting transactions. All transactions are recorded.In other words, the law strictly prohibits the sale of thallium and its compounds to private individuals.

According to records, there are more than 20 units in this city that need to use thallium and thallium salts in their work, that is, only these companies have the qualifications to purchase thallium products - it is quite easy to find out units that have purchased thallium salts within a specific period of time of.

Instead of spending time guessing where the thallium was used, it is better to start investigating where the thallium came from. The evidence and the scene can be destroyed, but the purchase record of thallium will not disappear.

"If it was poisoning, thallium salts were probably used. Have you visited the chemical laboratory?" After sending Uncle Wang back to his place, Yu Renjie continued to ask.

Hao Jinyang and Xiao Mi shook their heads at the same time. Ever since they found out that the victim was not from the Department of Chemistry, they put the word Chemistry behind them, forgetting that the suspects in the Fudan poisoning case and the Zhu Ling case were either from the Department of Chemistry or from the Department of Medicine. All of them have a solid professional background.

"The few companies in this city that can buy thallium salts include several major universities. If the students are poisoned in schools and the suspect is a student, it is very likely that the thallium salts came from a chemical laboratory." Yu Renjie touched Nose: "So I still have to go to the laboratory to see if they have thallium salts. If so, how are they stored, who can touch it, and is there a record of the amount used each time? At this time, I will be like you again. As I said, lock down the suspect and pay close attention to see where there are loopholes in the crime that can be broken, and what evidence the suspect has left behind. By the way, how is Li Qianqian's situation?"

"I haven't seen her yet." The two shook their heads together again.

"If it's too late today, go tomorrow. The victim's testimony is also very important."

Only then did the two realize that they were so used to investigating murder cases that they didn't even realize that the victim this time was still alive.

Cheng Bin folded his arms and leaned against the wall, scanning the two blushing young men: "Did you understand what Brother Yu said?"

"Understood." Xiao Mi pushed Hao Jinyang with her elbow, and Hao Jinyang just remembered the cake offering.He picked up the plastic bag already hanging on the washbasin, and handed it to Yu Renjie with both hands: "Brother, this is the egg-filled biscuit we bought for you specially, it's delicious!"

Yu Renjie tilted his head to observe the omelet that had become sticky after being weathered, and poked it with his finger: "Is this the X-sized pancake?"

The pancakes were fragrant and crispy when they first came out of the oven, and it was unexpected that they became what they are now. Hao Jinyang froze the corners of his mouth and said, "Yes... yes, it just got cold."

Who knows that Yu Renjie didn't dislike it at all, he took the plastic bag, poked his head in and took a deep breath, and said intoxicated as if he had sucked white|powder: "I'll eat it for dinner!"

Unexpectedly, as soon as his head left the bag, a bony hand grabbed the bag from above, and Cheng Bin's almost commanding voice came from above: "Don't eat such messy things at night!"

As soon as the words fell, Yu Renjie and Cheng Bin started a thrilling battle for egg-filled pancakes.

Cheng Bin dodged left and right, Yu Renjie pinched left and right, and Guanbing kept speeding and swaying between the two, colliding and knocking.Not long after, Yu Renjie's forehead was hit by the bag several times, and it was covered with oil, and Cheng Bin's white shirt was stained with oil... The situation was dire, and both sides suffered.

The tempers of the two of them came up again and again. Yu Renjie started to step on Cheng Bin's leather shoes. Cheng Bin was so distressed that he had to lower his head and stuff the omelet into his mouth. After a few random bites, he swallowed the whole piece of cake. Going down, not even a piece of skin was left for Yu Renjie.

Looking at Cheng Bin's bulging cheeks and Yu Renjie's desperate white eyes, Xiao Mi gently pushed Hao Jinyang: "Let me just say, I want to take away even a cake, the captain is too bullying!"

"After queuing for so long, the brother didn't get a bite. It's really pitiful." Hao Jinyang nodded.