After Mizuma Moon and Miwako Sato were promoted, naturally there would be corresponding positions, Mizuma Moon was transferred to the director of the three departments of the search section and took over Miwako Sato's position, while Miwako Sato's police department took over the work of the Twilight Police Department and became the 'department leader' of the three departments. The Twilight Police Department has not been promoted to the police department, and now it is the chief of the search section, that is, the deputy section chief. It seems that the Twilight Police Department is still the police department and has not changed much, but in fact, if you think about it, you know that the deputy section chief is better than the department head.

The Sato Police Department received a report on the morning of the first day of taking office, and Mizuma took painkillers silently, not knowing if taking medicine just after breakfast would affect the efficacy of the medicine.

The incident happened in a small alley between two buildings, the deceased was the director of a cleaning company, and when he was walking in the alley, he was hit on the head by a piece of I-beam falling from the sky, and died on the spot, and the death was terrible, Mizuma Tsuki, who was used to seeing the murder scene, almost didn't vomit out, Miwako Sato, who was a female streamer, directly said that she needed to rest, and she was relieved to hand over the scene to Mizumatsuki.

The president of the cleaning company was very sensible, and invited Miwako Sato, Mizuma Tsuki, and the first discoverer, who knew at a glance to be the chief, to the upstairs office to rest. Well, that's right, the first person to find out is the Maori family who went out to exercise.

In the office, Mizuma asked the president of the company and the Mori family about the situation briefly, there was not much information, and it was worth noting that the deceased had conflicts with the president before his death.

Fujiwara Sakaki knocked on the door and walked in, saluted Mizuma and said, "The police department has made up, the preliminary investigation of the scene has come out." Completely ignoring Miwako Sato, who was beside Mizumatsuki......

According to Fujiwara Sakaki's report, one of the two buildings next to the site is an abandoned building, and the other is a rental office building where they are now located, and according to the description of the building administrator, there are only three people in the building today: the president, the president's secretary and the administrator.

On the roof of the abandoned building, new traces of heavy objects were found, with rust on the traces and the size of the I-beam, which was presumed to have fallen from the abandoned building.

The two buildings are not equal in height, the office building is nearly one meter taller than the abandoned building, combined with the distance between the two buildings, according to Fujiwara Sakaki, no one except the Sato Police Department can jump over in the search lesson, so it is ruled out that the murderer jumped from the office building and pushed down the I-beam and then jumped back from the abandoned building.

In addition, they found a high-level monitor on the roof of the office building, and it was installed by the president of the cleaning company, hoping to call up the surveillance footage to see if they could find anything.

When Mizuma asked the president to watch the video, the president's expression was a little unnatural, and he vigorously deduced that the monitoring scope did not include the roof of the abandoned building opposite, and explained that this monitoring was real-time monitoring and that no video was stored.

In response to this question, Fujiwara Sakaki said that today's monitors have the function of automatically saving the last half hour of video, and if the action is fast, the technical department can extract the video at that time.

The president was still unwilling, and said that his monitor definitely didn't have this storage function, and Conan, who had been staying in the office at this time, helped, and he didn't know when he ran to the monitor under the monitor, pointed to an instrument under the monitor, and said, "Huh, isn't this symbol the meaning of video? When Uncle recorded Miss Yoko's program, the video recorder was flashing!"

You ask Conan why he wasn't kicked out? This is not the scene of the crime, why did Mizuma Moon pick him up, in case he was kicked out, he ran to the scene of the crime and found something that didn't add to the chaos.

In desperation, the president had to explain that he didn't know much about mechanics, and let Fujiwara Sakaki take the storage disk of the video recorder.

"Well, can I leave to take care of my personal time?" asked the president, standing up.

"No, I can't. "Mizuma Moon said very facelessly.

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PS In recent days, the author has taken materials, and the update can only guarantee a thousand guarantees.

The author's fragmented thoughts on the number of words: The material is really not a joke, and it is very troublesome. Some book friends said that one of the selling points of this book is that it is different from the original book to solve the case, and it is also the difficulty of writing this book.

There are a lot of cases in Conan, but only half of the cases have police appearances, and some of them are cases that were solved before the police came, and the police came to pick up people and leave.

Choosing a case is not over, I have to carefully scrutinize the modus operandi in the case, consider it in more detail than the criminal, think about whether there are any traces that will be left by this technique, but the original book does not say, what traces that Conan inadvertently noticed in the original book can be found through forensic means or the like, in short, it's quite troublesome, other writers write about the relevant case and read it once or rely on memory, I have to make a note if I read it three times. In the end, it is not much different from what was written in the original case.