Chapter 14 Section Thirteen

This method is to put toluene or oil in the liquid medicine.In this way, due to the specific gravity, the liquid medicine sinks to the bottom, and the oil floats to the top, which can be clearly distinguished.The murderer only needs to absorb the harmless part of the upper layer, drop it into his cup, and let everyone drink the poison of the lower layer.In fact, in the "Imperial Bank incident", it is said that the upper layer of the first medicine is clear, and the lower layer is cloudy and whitish, with a slight gasoline smell.It can be inferred from this that the murderer used this method.It is also said that when the former military department preserved the cyanic acid compound solution, it would combine with carbon dioxide as soon as it came into contact with the air, gradually turning into harmless potassium carbonate from the surface, so oil was always added to prevent it from coming into contact with the air.

Since the investigation is so correct, why not investigate the old military department?Since it is believed that the real culprit of the "Imperial Bank incident" is directly related to the people in the Army's health department, why must the finger be directed at Hirasawa who has no medical knowledge at all?On the one hand, the murderer was always calm when he administered the poison, which gave people the impression that he had experience in massacres. Why did he decide that it was done by Hirasawa, who had no experience in poisoning? In fact, the investigation work was originally carried out against the old military headquarters.The above-mentioned investigative outline issued on June 25 stated: "This time, the work of vigorously reducing the investigative network has been completed, and part of the investigative policy has been moved to a new direction." On the same day, the General Secretary The instruction issued by the minister's palace also stated: "After the stage of meticulously laying the groundwork, the investigation has now officially started." The instruction of the Police Department of Criminal Investigation No. The result of shrinking the investigation network has limited the direction of the perpetrator to a certain extent.” From the same investigation compendium, it is also clear that the article “Searching for suspects from those with the above experience in the old military department” refers to What is it.

Here I repeat: this investigative program is excellently done, and it outlines the image of the perpetrators of the "Reichsbank Incident" with the utmost objectivity.So why do you have to point the finger at Hirasawa Sadomichi, who is far from this investigative outline? During the investigation, the Metropolitan Police Department apparently hit a wall.

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