The medicinal material bank s in the school were managed by the personnel of the logistics department. Although there were people managing them, the staff who managed the medicinal material bank were many in number. It was not just simply managing the medicinal material bank, it was just one of the content of his work.

Since he was not specifically responsible for managing the medicinal material bank, he would naturally not stay in the office. When he received the call from the old headmaster, the logistics staff quickly rushed over.

"Old Principal, what kind of medicine does the school's medical department need?" As he spoke, the logistics officer pulled out a key and opened one of the two security doors.

"Wrong, I'm not here for Western medicine, I'm here for Chinese medicine!" Former Principal Chen Hong immediately said.

"Ah?" Why does the school's medical department need Chinese medicine? " The staff asked in confusion.

The old headmaster said, "Why? Is there a rule in the school that the school's doctors cannot use Chinese medicine to treat students' illnesses? "

"No, I'm just a bit curious." As the staff member spoke, he took out another key and opened the other security door.

Without a doubt, behind this anti-theft door was the medicinal material bank used to place the traditional Chinese medicine.

After the anti-theft door opened, the Former Principal Chen Hong walked in with Chen Hui. The staff member followed behind, but stood at the door and did not go inside.

Chen Hui looked around, the medicinal material bank was almost the size of a larger classroom, rows and rows of medicine cabinets were placed inside, obviously all the Chinese medicine cabinets were inside.

Chen Hui noticed that the ground was very clean, and could not help but look at the logistics staff, and asked: "Is there anyone here who specialized in cleaning?"

"Nope." The logistics staff immediately shook her head and said, "I'm in charge of all of this. It's fine normally. I come every two days to sweep the floor and wipe it clean."

"Western Medicine's medicinal material bank, do you also clean up?" Chen Hui smiled and asked.

"Of course, I'm in charge of these two medicinal material bank, no one would clean even if I did!" The logistics staff replied Chen Hui with a smile.

Chen Hui nodded, and did not say anything else. He had already made his judgement in his heart, that this logistics staff member was extremely serious, and that he was not specifically responsible for managing the two medicinal material bank, but was only responsible for one of the contents of the work, and that no one would come here unless a teacher wanted to take the ingredients, but he still often cleaned the floors and wiped the floor, showing that he was very serious about his work.

The moment Chen Hui arrived at medicinal material bank, he had already seen two anti-theft doors, but there were no traces of being pried open. This gave rise to a possibility, if the senna leaf escaped from the school, then the person in charge of managing the medicinal material bank would be suspicious.

However, seeing that the logistics staff who was in charge of managing the medicinal material bank was working so seriously, Chen Hui immediately determined that the logistics staff was not likely to be suspicious.

A man who takes his work seriously will not allow it to go wrong, let alone use it to commit a crime.

After all, the crime of poisoning was a criminal offence and they had to be sentenced to death!

At this time, Former Principal Chen Hong had already found the medicine cabinet that held the senna leaf. Pointing to the drawer that held the senna leaf's medicinal name, he asked: "Lee Jin, what's the total number of senna leaf in the school? Has anyone ever taken it? "

"Let me check the records." The logistics staff member called Lee Jin immediately took out his phone and opened a form, asking about the quantity and usage of the senna leaf.

Chen Hui was close to Lee Jin, and saw the screen of his phone with his sharp eyes. He could not help but ask curiously: "Teacher Li, do you need me to register the medicinal ingredients you want on your phone?"

"That won't be necessary." Lee Jin smiled and pointed to the registration book on the wall, and said: "Take the medicinal ingredients and register in the registration book, I made this form myself. When someone uses the medicinal ingredients, after you register in the registration book, I will enter the form into my phone, this way, there will be a backup, and then, like the old headmaster just asked, I only need to enter the name of the senna leaf to look it up, and then I will be able to understand it with a glance."

After Lee Jin finished speaking, he showed his own cell phone's screen to Chen Hui.

As expected, just as Lee Jin had said, it was extremely convenient to search for the use of a certain type of medicinal ingredient. He had bought 200 grams of the senna leaf's medicinal ingredients last year, no one had used them before.

"Old Principal, the senna leaf was purchased last year, the total amount was 200 grams, no one has ever used it." Chen Hui helped Lee Jin answer the old headmaster, and at the same time walked over.

At this time, Chen Hong had already opened the drawer. Chen Hui took a glance inside and immediately said with certainty: "This quantity is wrong, it is definitely not enough!"

Chen Hui frequently dealt with medicinal herbs, and he was very clear about how many two hundred grams of senna leaf there were.

"Impossible, no one has ever used it before. These senna leaf must be at least 100 grams." Lee Jin also walked over and immediately said.

Chen Hui laughed, pointed to the senna leaf in the drawer and said: "Teacher Li, let's make a bet? Betting on whether these senna leaf have 200 grams? "

"If you want to gamble, then so be it!" Lee Jin immediately asked: "What's the wager?"

"As for the bet, what do you think about it after we finish gambling?" Chen Hui said with a smile.

"That's fine too!" Seeing that the old headmaster did not stop him from making a bet with Chen Hui, Lee Jin agreed without hesitation.

There was a scale inside the medicinal material bank, one big and one small, the big one was used to measure the weight of the purchased herbs, while the small one was the same as the ones used in the traditional Chinese medicine stores and restaurants, obviously used to measure the weight of the herbs used.

Lee Jin took out all of the senna leaf s from the drawer and put them into a plastic bag.

Lee Jin took the senna leaf that Chen Hui handed over, and immediately raised the weighing rod, and said: "Watch carefully!"

It was at this time that Former Principal Chen Hong walked to medicinal material bank's door and closed it.

Lee Jin immediately moved the weight to a position of 200 grams, but the weight immediately slid down the pole, almost falling to the ground!

Obviously, these senna leaf were not even worth two hundred grams!

"This... "What's going on?" Lee Jin panicked. He immediately adjusted the weight and started moving it from zero.

When the weights were moved to a suitable position, the weighing poles formed a perfect balance, which meant that the position of the weights was the total weight of these senna leaf.

Lee Jin looked at where the weight was on and was shocked. He revealed a look of disbelief and said: "How is that possible? How come it's missing 60 grams, almost 70 grams? "

Lee Jin put down the scale and the senna leaf, and immediately went to the registration book on the wall and started flipping through it!