"Since that's the case, when did the prisoner get poisoned?"

Takagi Shibu felt a little confused now, "Also, where did the container used to hold poison at that time go?"

Officer Memu pondered: "It seems that we can only re-examine this ward."

"I don't think there is any need for that," Conan said, "because there was a person there at that time, and he could apply poison on the teacup openly, and he had never left the teacup."

As he said that, he looked up at Amuro and smiled faintly, "Is that right, Brother Zero?"

"Brother Zero?" Ran Maori was puzzled.

Conan smiled and said, "It's Brother Amuro. He said that when he was a child, everyone called him Zero."

Amuro looked at him calmly without making any sound.

Kogoro Mouri couldn't help but say, "How is it, do you already know who it is?"

"Because Conan's prompt just now, I guessed it." Toru Amuro said gently: "That person can apply poison in advance or throw away the container that had been filled with poison safely. In addition, at the moment of crime, she never left the ward and walked outside. At that time, she was eyeing the opportunity to 'drop the teacup that she had applied poison and the teacup that was the victim's teacup that was "swallowed the bag"..."

He looked at the three people standing at the door, and said in a certain tone, "There is no one other than you, Ms. Takasaka Shuri!"

Takasaka Kiri's face changed.

Around her, Bafang Shizhi couldn't help but say, "Wait for a moment, you said she had applied poison on her teacup from the beginning, but Shuli used that teacup to drink tea from beginning to end."

"Have you forgotten that the poisonous part is applied on it, and only the edge of the cup you will encounter when holding the cup with your left hand." Amuro Tor said calmly: "Just be careful and don't pick up the cup with your left hand, so that it will be impossible for the mouth to touch the poison."

Takagi Suk suddenly realized and said, "So when is the poison..."

"I think she brought the poison on her body before she was hospitalized," said Toru Amuro: "On the day the victim came to visit her, apply poison on her teacup and then take the container to a place outside the room and throw it away. Am I right?"

Takasaka Shuri's body trembled and she was speechless for a moment.

Beppu Huayue hurriedly said, "I just wanted to ask if you have forgotten something. Shuri was drinking blue herbal tea at that time, and Lingcai was drinking red herbal tea at that time! Even if there was a piece of lemon floating on it, it wouldn't be possible to get it wrong because of this, right?"

Tori Amuro chuckled, "That's right, that piece of lemon is the key to this trap."

When everyone heard this, they were stunned.

"The key?" Kogoro Mouri asked in confusion.

"Yes." Amuro nodded, but just as he was about to explain, a surprised voice came from the side of a primary school student, "It's really blue. This herbal tea called Butterfly Bean is really magical."

"Why are you moving the items left over from the scene again?" Kogoro Mouri's forehead leaped.

"No, this is the hot water I just asked for from the nursing station, and so are the lemons." Conan said, putting the lemon slices into the blue tea.

Just as Kogoro Mouri rolled up his sleeves and planned to punch him hard, the primary school student suddenly shouted, "No, it's really strange!"

He held the cup to show everyone, "This cup of tea was obviously blue just now, but I didn't expect that after adding lemon, it slowly turned red."

"Is it true?" Officer Megu and others rushed over.

"The tea changes color because of the chemical reaction with the acid of lemon." Amuro Toru was not surprised, "There are other types of herbal teas that will also have the same reaction."

"Are you talking about violet tea?" Ran Mori chuckled, "I remember that as long as you add lemon, it will turn from blue to pink."

"Yes, if it turns red due to acidity, then when Ms. Takasaka claims to use this alkaline baking soda powder used when she washes the tea cup, it will turn blue again." When Amuro Toru explained, he took out the baking soda powder from the cabinet beside the wall and poured a little into the tea cup in Conan's hand.

Visible to the naked eye, the red tea turned blue again.

"In other words, Ms. Takasaka's crime process is like this." Toru Amuro said, "First of all, after knowing that Ms. Sutun and others were coming to visit, she asked Ms. Sutun to come over a little earlier and said that she would hold a tea party later. Please help you get hot water.

Then apply the poison that you brought in when you were hospitalized on the edge of your teacup and use the container to hold the poison to go outside the ward to find a place to throw it away.

The next three people who visited the disease have arrived. You suggest, "Since you are going to have a tea party, drink different teas to compare." And wait for Ms. Xudong to choose Luoshen tea. This is because the color of Luoshen tea is a slightly purple dark red, which is very similar to the color of the butterfly bean tea that turns red after adding lemon.

When Ms. Xudong chose Roshen tea as you expected, you placed a tea bag in her tea cup that replaced the contents with butterfly bean tea in advance, then placed lemon and injected hot water. You can bring the butterfly bean tea that looks like Roshen tea to Ms. Xudong who fell into the trap."

After listening, while everyone was thinking, Kogoro Mouri asked, "How did she get rid of the tea bag?"

"While Ms. Sudou and others were focusing on looking at the photos on Ms. Sudou's phone."

Toru Amuro said: "First, the blue butterfly bean tea she had in her poisoned teacup turned red because of the lemon. Then she put it over like pushing Ms. Sudou's teacup, and then pretended to be holding her own teacup and picked up Ms. Sudou's teacup.

Then take off the cup of lemon, add baking soda powder, and after the tea turns blue, then slightly push the poisoned tea cup slightly with the same technique, and calmly put the poisoned tea cup's hand on the left direction of Ms. Sudou.

Because you were thinking that Ms. Xu Dong was paying attention to the photos on your phone, you would pick up the poisoned teacup with your left hand."

After saying that, he paused and looked at the already trembling Kisaka Shuri with a calm expression, "Are I wrong about it?"

Takasaka Shuri couldn't speak at all, but Beppu Huayue around him said angrily: "You seem to have seen everything you said. What evidence do you have?"

"Oh yeah." A tender voice suddenly appeared. Conan grabbed Takasaka Shuri's left hand and said in confusion: "How come the thumb of this aunt's left hand turns red?"

Takasaka Shuri subconsciously retracted his hand.

Conan smiled kindly, "Are you hurt?"

"No, this is..." Takasaka Churi's lips moved, and then he heard Toru Amuro say: "This is something the prisoner must remove from the scene. In addition to poison, there is actually another one."

"Lipstone." Chen Xing suddenly said.

He suddenly thought of a case about lipstick that he had come into contact with before.

"Yes, it's the lipstick that Ms. Sudou used to drink tea at the beginning!" said Toro Amuro: "Because Ms. Takasaka is a hospitalized patient, if her tea cup is stained with lipstick, it would be too unnatural. So she immediately applied her fingers to wipe off the lipstick marks, but if lipstick is not washed with soap, it is difficult to wash off."

Officer Meguru stepped forward and pulled Takasaka Shuri's hand, "That is, if Ms. Sudou's lipstick is consistent with the red component on it, this will become evidence."

Tori Amuro nodded, "Also, if you investigate the teacup where Ms. Sudou was dropped, it can also be used as evidence, because there is a lot of baking soda added to that teacup."
Chapter completed!