In the middle of the grove, Red Star Squatted on the ground, while the other three sat in front of him and to his right and left.

The red star twinkle also showed the light curtain again, and the four people were also engrossed in staring at the picture on the light curtain.

I saw that Tong Aijun, who had sent Professor Li downstairs earlier, had also returned to the laboratory, and Sun Wei in the picture was also busy on the experimental operation table with his head down.

The four of them were afraid that they would miss any important clues, so they didn't chat, just staring at the picture in front of them quietly.

After a while, the boy Aijun walked to Sun Wei's side, and after pointing Sun Wei a few times, he turned around and slapped him, and said to everyone in the laboratory: "Okay, it's almost noon, the morning experiment will be done here first, today at noon, I invite everyone to eat a small stove and improve the food." ”

"Yay...... That's great! ”

"Haha, thank you, Teacher Tong."

After admiring the five or six students in the laboratory, they also stopped the experiment in their hands, walked to Teacher Tong's side, and prepared to leave together.

Sun Wei in the picture also stopped, turned around and said to Tong Aijun: "Teacher Tong, my dissertation is still missing several sets of experimental observation data, and I also want to use the noon time to observe these sets of data, otherwise the proposal report that needs to be submitted next week may be delayed, and our class also has activities in the afternoon, and the time is really a bit rushed, so I won't participate in this meal at noon." ”

Tong Aijun was also a little surprised, and said, "Huh? In that case, why don't we go to dinner again in the evening? ”

When the other people heard this, they also immediately let out all kinds of complaining voices.

Sun Wei hurriedly said: "Teacher Tong, everyone is also very busy, and the time at night is even more difficult to coordinate, and don't affect everyone's dinner because I am alone, the next time we get together, I promise to go with you, you should also hurry up, and everyone's laboratory table will be handed over to me to clean up by the way." ”

Sun Wei's words were also extremely sincere, and the teacher Tong did not insist anymore, and after praising Sun Wei a few words, he left the laboratory with the rest of the students.

Sun Wei's flying eyes diagonally above his head were also working quietly, and his next moves were clearly displayed in the eyes of the four people.

I saw that he came to the experimental table used by Tong Aijun before, picked up a dark-colored wide-mouth sealed bottle placed on the table, and looked at it as if confirmed.

Red Star Twinkle also controlled the flying eye at this time, narrowed the distance of the camera, and also saw clearly the label attached to the glass bottle in Sun Wei's hand, as well as the text marked on the label:

【Thallium nitrate storage solution】

I saw Sun Wei carefully uncork the bottle, poured out some of the solution in the bottle and put it in a beaker, and then capped the dark wide-mouth sealed bottle and put it back in place.

Returning to his experimental bench with the beaker, Sun Wei began to dilute the liquid in the beaker, these most basic chemical experimental operations, Bai Lidu had also studied in high school chemistry class, so he could understand it at a glance.

Soon, Sun Wei stopped what he was doing, put the beaker on the table, and then pulled the chair with his win-win backpack to the front, opened the backpack, and took out a milky white plastic bag, which was the disposable medical syringe of the dermatology department of a certain hospital.

Sun Wei tore open the plastic bag of the syringe, took out the syringe from it, and then put the matching metal needle on the syringe.

Seeing this, Bai Lidu's heart was also quite shocked and excited, after all, no one had ever seen this picture, and except for Bai Lidu, the other three people at the scene were basically in the same mood at the moment, and the four of them were all staring at the picture in front of them with wide eyes, and they didn't dare to blink at the picture in front of them.

I saw that Sun Wei, holding the beaker in his left hand and a syringe with a needle in his right hand, after he put the needle into the beaker, he raised his hands again so that the beaker was at the level of his line of sight.

The fingers of his right hand moved slightly, and the solution from the beaker was sucked into the syringe.

This kind of one-handed syringe pumping technique has only been seen in some hospital medical staff, and if you want to use yourself to extract the solution in this beaker, you will probably have to use both hands to operate.

And Red Star Twinkle couldn't help but admire: "This Sun Wei is not simple, this one-handed syringe technique is simply a fight with the one-handed reloading magazine." ”

Soon, Sun Wei filled a syringe, and there was still solution left in the beaker, so Sun Wei put the syringe full of venom on the table, and then took out another syringe from his backpack.

"Dizzy! This Sun Wei is too ruthless, one is not enough, and he actually has to come again! The pillars of the Guo family couldn't help but speak.

When the second syringe was also filled, and there was not much solution left in the beaker, Sun Wei poured some water into the beaker, and then poured the liquid into the waste liquid recovery bottle.

In this way, for uninformed people, it should be difficult to find that there is a loss of venom in the laboratory, if someone finds that the storage liquid has decreased, Sun Wei can also assume that the solution was wrong in the dispensing, so the mismatched toxic solution was poured into the waste liquid recovery bottle.

After doing this, Sun Wei took out a long strip-shaped metal box from the backpack, opened the box, and put the two syringes on the desktop into it, and after covering the box, he put the box into the backpack again.

Next, Sun Wei really did what he said, and walked to the experimental table used by everyone before, and quickly cleaned up some experimental utensils and beakers and test tubes on the experimental table.

When Sun Wei walked out of the laboratory with his red backpack on his back and whistling, the four people in the grove who had been watching the candid live broadcast also received a prompt at the same time:

- Quest Hint: By watching the candid video footage of the special plot characters of the current space-time dungeon, you have collected the seventh key evidence of the current detective mission: [Theft of thallium salt solution]

Red Star Twinkle immediately commanded its flying eye to fly out of the open window during the experiment.

After hovering in the air for a while, he re-locked Sun Wei who came out of the experimental building.

The four people in the grove had also stood up, and after putting away the shared light curtain, Red Star Twinkle also asked, "The evidence just collected is too crucial, if this was placed back then, it should be enough to cure Sun Wei's crime." ”

"Yes, this woman is so ruthless!"

"So what do we do next?"

"Of course, I've been keeping an eye on Sun Wei, those two syringes are on her, as long as she returns to the bedroom, she can easily complete the poisoning......"

"The great poet is right, so you have to keep an eye on it, and I estimate that the next two key pieces of evidence will most likely be collected in the 114 bedroom."

Zhou Ruolan analyzed at the end: "Well, I guess Sun Wei shouldn't go to the cafeteria to eat at this time, it is likely that she will return to the dormitory first, and Jin Ya and Wang Qi, who are sleeping together, are probably waiting for her to come back." ”

The four of them discussed the unanimous opinion, and quickly ran to the direction of the girl's Building 6, through the real-time picture fed back by the flying eye, the red star flashed Sun Wei's dynamics in the team, and as Zhou Ruolan guessed, Sun Wei really went straight to the direction of Building 6 after leaving the experimental building......