Conan: About the fact that I have a black brother

After returning to the Metropolitan Police Department, Date Kou first began to investigate possible suspects with Takagi Wataru. The forensic doctors also worked overtime to conduct autopsies and drug identifications. The police officers from the Trace Examination Division had a harder time and are still staying in the KTV, searching for syringes that may have been discarded.

Destined to work overtime again, Yi Dahang simply bought a cup of coffee for each of his colleagues who were working overtime, and went to the corridor to calm down.

The latest drug test results also reached Idahang, and his colleague explained the report: "We have identified an excessive amount of scopolamine in the body of the deceased. This is a belladonna alkaloid, which is generally used to treat motion sickness. Overdose can cause nausea and vomiting."

"Motion sickness medicine?"

"It is not used directly as a motion sickness medicine in clinical practice. It is usually used in the form of an injection. If it is a motion sickness medicine, phenobarbital scopolamine tablets will be used. This is a compound medicine, and the effect is not as good as direct injection."

"A hypodermic needle was found at the scene," Ida said. "Can the remaining liquid in the needle be identified?"

My colleague shook his head. "No, it has been washed with alcohol, and there wasn't much left on it. But Officer Ida, scopolamine is not the main cause of death. The forensic doctor did not find any injection needle holes, but we didn't find any other fatal injuries. Drug poisoning is the cause of death, but the specific drug still needs further confirmation."

"We suspect this is another new type of poison." A colleague said solemnly, "We will quickly compare the chemical spectra of previous new drugs."

"Thank you."

Yi Dahang took a deep breath and intuitively felt that this case was still difficult.

Seeing him like that, his colleagues consoled him, "Not necessarily. Maybe they just took too many drugs and the messy chemicals reacted in their bodies."

Before he finished speaking, another person came running over from a distance: "Teacher, it seems that an unknown substance has been detected. We can't confirm it."

Yi Dahang's fears came true. His colleague secretly cursed himself for being too nosy, but pretended to be calm: "What unknown substance? Is the machine broken again? I said that this kind of old equipment should be replaced immediately. Those people are upgrading and don't know..."

He muttered and walked away.

Yi Dahang thought about it and followed him.

As soon as my colleague entered the room, he walked quickly to the instrument. He held a few neatly folded sheets of white paper in his hand, fanned the instrument, and muttered something.

Afterwards, he operated the computer himself and observed the data again: "... Look, look, isn't this right? Where did the new substance come from? You scared yourself."

The student scratched his head, puzzled: "Really..."

Ida Hang was very curious: "What are those papers used for?"

My colleague put his index finger to his lips: "Shh, I'll tell you later."

Then he stood up from his seat and asked the students to repeat the operation again, and they got exactly the same result.

The two of them breathed a sigh of relief.

After pulling Idahang away from the laboratory, the colleague said, "You don't understand. This old machine is very human. You can't say something bad in front of it."

Ida Hang was a little confused and began to wonder if his colleagues were going crazy because the crime rate in the city was increasing year by year.

The colleague winked and pulled him further away: "Let me tell you, this is my exclusive secret, which I have only demonstrated in front of you and Maruo, so don't tell anyone."

No one would do this if I told them...

Perhaps seeing Idahang's doubts, his colleague shook his head mysteriously: "You don't understand. Sometimes the end of science is metaphysics."

Ida Hang really didn't understand: "But I know that the murderer must not be a metaphysical creature...——When can you give me the detailed report?"

"Maybe tomorrow..." The colleague was not sure.

Having said that, at noon the next day, Yi Dahang finally got the report he wanted.

At the same time, the Trace Inspection Department also found a small amount of remaining pharmaceutical powder in the lining of one of the deceased's clothes. After comparison, it was found to be consistent with the report obtained by the laboratory.

The police officers who investigated the interpersonal relationships also concluded that the three people had deep-seated grievances, and it was normal for them to appear to be in harmony but not in harmony with each other.

The truth seemed clear, as if the case could be closed.

But Date Ko felt something was wrong. He was about to review all the information about the case again when Officer Megure suddenly came to urge him to get rid of it as soon as possible.

The more this happens, the more suspicious it appears.

After the anesthesia department sent someone to take away the drug report, everything seemed to return to calm.

Is that right?

Yi Dahang wiped his face vigorously, stood by the windowsill to enjoy the breeze, and tried to make his thoughts clear.

Something must be wrong.

"Brother Ida, there is a case." Takagi Wataru's voice interrupted his thoughts, and Ida Ko followed subconsciously.

Let's put it aside for now.