Tuesday, January 9th, before evening, game hall.

When Maori laughed, the Twilight Police Department led the team to arrive, and when he heard Maori's laughter, he walked straight over, "Maori Kogoro, you have to figure it out, this is the scene of the murder!"

"Ah, Lord Police. Maori quickly shut up.

Yamazaki diverted the topic and introduced, "Dusk Police Department, this is our English teacher, Teacher Judy. ”

"Oh, that's rude. The Twilight Police Department said, then in English, "I'm the Twilight Thirteen Police Department of the Metropolitan Police Department. ”

Surprised, Maori asked, "Huh, when did you learn English?"

"Now everything has to be in line with international standards. The Twilight Police Department said proudly, "Isn't it going to be an expo soon? Then he said in English, "I'm a Japanese police officer, can I help you?"

"No, no, that's not what the police say. Teacher Judy corrected.

"Really?" said the Dusk Police Department, and began to learn.

Looking at the on-site teaching, Officer Takagi hurriedly coughed lightly and reminded the Twilight Police Department.

"Ahem!" said the Twilight Police Department with some embarrassment, "Thank you, Teacher Judy." ”

Teacher Judy smiled: "You're welcome, if you have any English questions, you can come to me at any time." ”

The Twilight Police Department asked Maori, "Okay, since you're here, then you can tell me what's going on here?"

Maori said embarrassedly: "Well, report to the police department, I also received a call from Lan not long ago." ”

"I'll tell you. "Here's the thing, we were drinking and watching a fighting game on the big screen here, and the character controlled by the deceased suddenly stopped, and then he lost the shot, and the fight was over, and then everyone found out that the person had died." ”

The Twilight Police Department said, "That is, he died suddenly in the middle of the game. ”

Yuan Zi said: "Yes, there were still offensive and defensive sides on both sides before. ”

"Next, we ran to the door to prevent people from going out, and then the police came from the neighborhood and we came back, so everyone is here until now," Lan said. ”

"Good, well done. The Dusk Police Department said.

Mei Daizi said, "Dusk Police Department, let us go now, I have to go back to work." ”

"It's okay, if you want to go, let's go first. The Dusk Police Department said.

"Thank you, Police. "By the way, you'd better send the body for an autopsy to see what the cause of death is." ”

"Okay, I got it. The Dusk Police Department said.

"Uncle, teacher, let's go first. "Yamazaki and Midaiko left. ……

On the way home.

Mei Daizi asked, "By the way, brother, is that incident difficult to handle?"

"The question now is the cause of his death, whether it was a quick death, or if it took a while to die, I don't know if there is no way to investigate this, and this will have to wait for the autopsy results to come out. Yamazaki said.

"By the way, if a capsule can control time, then the murderer may not be at the scene. Mei Daiko said.

"That's it. Yamazaki said. ……

On the other side, the arcade.

The Twilight Police Department asked people to register the nearly 300 people in the game hall, and by the way, they checked whether there were needle-like objects on their bodies, and they took Officer Takagi to see the surveillance video called up by the boss, and found that due to the large number of people, the hands of the deceased were not photographed, but a large number of people could finally be excluded.

At around half past six in the evening, registration ended, and no suspicious needle-like items were found. So the Twilight Police Department announced that except for those who were with the deceased and who had been to the deceased, everyone else could go first.

Conan was shocked, if that was the case, didn't that guy run away, so he ran up to Maori and asked, "Uncle, I just heard them mention the incubation period, what is that?"

"The incubation period is the period between when a pathogen invades the body and when the earliest clinical symptoms appear. Then he asked Conan, "Understood, little friend?"

"Uh-huh. Conan nodded in response, this guy won't notice me like that, will he?

"Ah, the police department," said Maori, "may have been poisoned much earlier, and the deceased had just been poisoned at that time." ”

The Dusk Police Department asked, "If that's the case, will the murderer still be here?"

"Well," said Maori, "I think we'd wait until the cause of death is determined." ”

"Well," the Dusk Police Department said after a moment's thought, "well. Then he instructed people to question the people in the arcade and record their previous trips. ……

At nearly eight o'clock in the evening, when the Dusk Police Department dealt with nearly 300 people in the game hall who asked to go home, and when they had a very headache, a preliminary autopsy report finally arrived, and the cause of death was a poisonous needle with puffer fish poison, and the eye of the needle was found at the base of the left palm.

Teacher Zhu Di said: "Tetrodotoxin, commonly known as TTX, 0.5 mg can be fatal, usually in the body of pufferfish, the poisoning reaction from oral ingestion, the poisoning reaction is relatively slow, timely treatment can generally be rescued, on the contrary, direct vascular injection of nerves will paralyze in a short period of time and die immediately." ”

Yuan Zi was surprised and asked, "Is the puffer fish so poisonous?"

Lan said: "The teacher should be talking about refined, high-purity tetrodotoxin. ”

"Well, anyway, the cause of death is clear. "Although I don't know where the killer got the high-purity tetrodotoxin, the use of this fast-onset poison means that the murderer must have been at the scene, around the deceased's body." ”

"Yes, this way, the area will be narrowed down a lot, and the rest of the people will be able to let them go back." ”

Could it be that my intuition is wrong, Conan thought to himself, no, there must be something wrong, but where is the flaw?

Judy-sensei said, "Oh, I've always heard that there are a lot of rich people in Japan, but now it seems to be true. ”

"What do you mean?" asked Maori.

Teacher Judy asked rhetorically: "The market price of a gram of high-purity tetrodotoxin is more than 100,000 US dollars, can you use this to kill people, aren't you still rich?"

"One hundred thousand dollars!" Maori was taken aback.

"One gram of what you said, uh," Officer Takagi reacted, "Police, I suggest calling the various agencies that hold and research high-purity tetrodotoxin right away to see if they have stolen it." ”

"Okay, you can do it right away. The Dusk Police Department said.

At this time, the owner of the game hall came over and asked, "Officer, is the investigation over, the people here haven't eaten dinner yet." ”

"Okay, everyone else can go, except for some." ”

Conan watched Lucas from Kakuto swagger out of the game hall, and shouted in his heart, Damn, let him go.

After that, the police investigated the remaining people again, but found nothing, and due to the large number of places where needles could be hidden in the game hall, at about 10 o'clock in the evening, the Twilight Police Department asked everyone to go back, leaving only the police to continue searching for needles in the game hall. ……

Wednesday, January 10, afternoon, Maori Detective Agency.

Yamazaki came over and found that Maori was not there, he should have gone out to play mahjong again, and Ran was not there, he should be cooking dinner upstairs, and Conan was sitting on the sofa with a listless look, so he sat down next to Conan and asked, "You can't be out of energy because you didn't solve the incident yesterday, right?"

"A little. Conan said weakly.

"Please, who is so stupid to bring the murder weapon or something on their bodies and wait for the police to arrest them. "It takes at least three days to find a needle in that arcade, and if the murderer is that Lucas, as you intuitively feel, the murder weapon was thrown on the road after the murder, and it is impossible to find it." ”

"Can you help me look it up?" asked Conan.

"You'd better wait for news from the police. Yamazaki said.

"And what about that person?" said Conan, "that Judy-sensei." ”

"She?" Yamazaki said, "I just know she's supposed to be from some organization." ”

"What!" Conan was taken aback.

Yamazaki asked suspiciously, "Why are you so surprised?"

"Tell me a little more about her, you'll know, right?" asked Conan.

"She's supposed to be doing intelligence work, and you saw the marksmanship yesterday. Yamazaki said, "I don't know anything else." ”

"Marksmanship? Then she's using a game to practice guns. Conan asked, "Then let me ask you, does she disguise?"

"Yes, I do intelligence work. "Yamazaki.

Conan shouted angrily, "Damn, you just let her be in school for such a person, don't you worry about what she does?"

"Am I to take care of this?" Yamazaki said, "Don't worry about Ran, she's safe at school." ”

I'm worried about myself, Conan shouted in his heart, damn it, how can I tell Yamazaki that if I was Tibelmode, he would definitely doubt what I said the day before yesterday about stalking Belmode, in that case, the Gray Plains guy might be exposed.

"What are you thinking?" asked Yamazaki.

"Nothing. Conan hurriedly said, "It just suddenly occurred to me that the Twilight Police Department investigated whether they could find anything with tetrodotoxin." ”

"It should be possible to find out that tetrodotoxin is not so easy to purify, otherwise it would not be so expensive. Yamazaki said, "It's just that there is still no evidence for this matter." ”

"Yes, if the murderer was that Lucas, then it shouldn't be Tetrodotoxin, a fast-lethal poison, because he really couldn't do it at the time. But it is Tetrodotoxin that is now among the dead, which is strange. "I believe my instincts are correct, but I haven't figured out what the problem is. ”

Yamazaki smiled, "I listened to last night's incident from the garden today and found a problem. ”

"What is it?" asked Conan.

"Autopsy report. Yamazaki said.

"Autopsy report?" Conan recalled, "no problem. ”

Yamazaki said: "There were only more than two hours between the delivery of the body and the delivery of the report, and I think it was only the superficial wounds, blood tests, and at most the stomach to check whether there were capsules. ”

"I see what you mean. Conan smiled, "I see, it seems that Lucas's shadow is here, and the eye of the needle plus tetrodotoxin is really easy to detect." ”

Yamazaki said, "Yes, with the results, the medical examiner will not do more research on the body." ”

"The real murder weapon hidden in that place has been overlooked. Conan laughed.

At this time, Lan came down, "Really, hasn't Dad come back yet?"

"Huh?" Conan's sweat fell, "Well, Uncle called and said he wasn't coming back for dinner in the evening." ”

"What? You didn't tell me sooner, Conan!" said Ran.

"I'm sorry, Sister Lan, I accidentally forgot. Conan said embarrassedly.

"Well, I don't blame you. Lan smiled, "Then we'll be able to eat later." With that, he went back upstairs.

"Then I won't disturb your dinner for two, goodbye. Yamazaki laughed, then got up and left. ……