In Conan, people have a brain option system

Just when Masumi Sera, Ginzo Nakamori and others were checking the surveillance video,

another phone call came in.

"Mr. Tsukino has woken up!"

Ginzo Nakamori said excitedly after hanging up the phone.

So, they hurried to the hospital where Takashi Tsukino was.

Ginzo Nakamori and Masumi Sera first confirmed with the doctor the cause of Takashi Tsukino's coma.

"We found diazepam in Mr. Tsukino's blood."

The doctor said to Ginzo Nakamori and Masumi Sera.

"In other words, Mr. Tsukino should have fallen into a coma because of taking sleeping pills."

"So that's it."

Ginzo Nakamori continued to ask after understanding:

"Can you tell me how long Mr. Tsukino took the sleeping pills?"

"Mr. Tsukino should not have taken the medicine for too long, about four or five hours."

"That's impossible!"

Ginzo Nakamori flatly denied this possibility.

"We have confirmed that Mr. Tsukino had fallen into a coma at around 0:20 this morning."

"So Mr. Tsukino should have taken sleeping pills at least 9 hours ago."

Nakamori Ginzo was a little confused. How could the doctor come to such a conclusion?

"Doctor, did you test it wrong?"

"The data don't lie."

The doctor was very confident in his judgment.

"Then, is it possible that Mr. Tsukino's gastrointestinal tract or liver has a problem, which has prolonged the half-life of diazepam concentration changes in the body?"

Sera Masumi asked.

"Our hospital has Mr. Tsukino's physical examination record from a month ago. Although he is nearly 40 years old, all his physical values ​​are normal."

The doctor replied.

Sera Masumi also showed a little confused expression when he heard this.

'It's not a test error, nor is there a problem with the physical constitution. Could it be that...? ! ’

After thinking for a while, she asked tentatively:

"Is the concentration of nordiazepam in Mr. Tsukino's body too high?"

"What do you mean?"

The doctor didn't quite understand what Sera Masumi meant.

"I remember that diazepam is different from triazolam, which has a relatively short half-life. Diazepam has a long half-life in the human body."

"About 20 to 50 hours."

"Is there a possibility that the high concentration of diazepam in Mr. Tsukino's body is because he took sleeping pills twice?"

"Because the human body metabolizes diazepam very slowly, I guess Mr. Tsukino may have been given sleeping pills again before the first dose of diazepam was completely metabolized."

"This caused the concentration of diazepam in his body to exceed the normal level, affecting the doctor's judgment."

Sera Masumi said.

Sera Masumi's statement also reminded the doctor.

The doctor realized that there was indeed such a possibility, so he hurriedly checked Takashi Tsukino's examination report again.

Then, he looked at Sera Masumi with a surprised look.

"Really, the concentration of nordiazepam in Mr. Tsukino's body is higher than normal, he should have taken sleeping pills twice!!"

"What does that mean? Why don't I understand?"

These chemical names are simply a blind spot for Nakamori Ginzo.

He listened to the conversation between Sera Masumi and the doctor and felt confused.

"What does the concentration of nordiazepam have to do with Mr. Tsukino taking sleeping pills twice?"

Then he heard Sera Masumi explain:

"The concentration of diazepam that Mr. Tsukino took the second time was superimposed on the concentration of the first time, causing the concentration of diazepam in his body to be higher than normal."

"So we can't judge whether Mr. Tsukino took sleeping pills twice, or he actually hid the sleeping pills secretly and took them four or five hours ago."

Nakamori Ginzo nodded when he heard this.

"Diazepam will be converted into metabolites after being metabolized in the human body, and this metabolite is nordiazepam."

"If Mr. Tsukino secretly took diazepam this morning, then the concentration of nordiazepam in his body should not be so high."

"Because this period of time is not enough for him to metabolize so much nordiazepam."

"So, it is only possible that Mr. Tsukino had taken sleeping pills once earlier."

Nakamori Ginzo heard Sera Masumi's explanation and finally understood it completely.

The doctor on the side listened to Sera Masumi's reasoning, and the surprise in his eyes became more and more intense.

He really didn't expect that this young and handsome mixed-race "handsome guy" actually knew so much.

Not only did he notice the places that even a professional like him overlooked.

He also deduced the truth of the matter so quickly.

Sure enough, detective is not a profession that ordinary people can do!

"If that's the case, Mr. Tsukino should have taken a sleeping pill yesterday morning."

"The exact time needs further analysis, but it was roughly around this time yesterday morning."

The doctor said to the two.

Sera Masumi and Nakamori Ginzo thanked the doctor and then came to the ward where Takashi Tsukino was.

Here, the two saw Takashi Tsukino, who still looked a little depressed.

Nakamori Ginzo and Tsukino Takashi already knew each other, so there was no need to introduce themselves to Tsukino Takashi.

He just introduced Sera Masumi next to him to Tsukino Takashi.

Said she was a detective who came to help.

"Mr. Tsukino, what exactly happened?"

Nakamori Ginzo went straight to the point.

"Yesterday I was going to come to the venue for rehearsal, but I didn't know what happened and lost consciousness."

"In other words, Mr. Tsukino, did you pass out yesterday morning?"

"Probably so."

Tsukino Takashi replied in a daze.

"It seems there is no problem. It's the same as your reasoning, Miss Sera."

Nakamori Ginzo looked at Sera Masumi, and then saw Sera Masumi nodding towards him.

"Mr. Tsukino, do you have any memory of being drugged?"

"No."

Tsukino Takashi shook his head.

Nakamori Ginzo looked at Sera Masumi again and asked with his eyes whether what Tsukino Takashi said was true.

"Zepan is a powerful sedative-hypnotic drug. Generally speaking, only 20 mg can make adults without drug resistance deeply comatose for several hours."

"Even if 30 milligrams of diazepam were dissolved into the drink, no one would notice it, so it is very likely that someone drugged Mr. Tsukino's morning drink."

Sera Masumi spoke up, indicating that there was nothing wrong with Tsukino Takashi's statement.