Chapter 9 Section VIII

Here I write down the "Investigation Outline of the Reichsbank Incident" issued by the investigating authorities to the National Police Agency.After reading it, everyone can understand the image of the Reichsbank prisoner assumed by the investigating authorities at the beginning. "Criminal Investigation One, No. 154, No. 6. February 7, Showa 23. "Minister of Criminal "General Instructions for the Investigation Outline of the Reichsbank Poison Killing Case: "According to repeated instructions, the police stations must be actively investigating the imperial bank poisoning case. In order to gain a deeper understanding of the situation and make the case clear, the investigation outline is listed and supplemented as follows:

"1. It is necessary to check with the Tokyo Metropolitan Government, the Sanitation Division of the Ward Office, the Epidemic Prevention Division (or Epidemic Prevention Unit), various health centers, hospitals, doctors, pharmacists, and other medical and epidemic prevention related parties. Has anyone received Matsui's advice? Ul or Yamaguchi Erlang's business card. "Second, find someone who looks similar to the murderer from among the following types of people: "1. Doctors, dentists, veterinarians, doctors of life insurance companies, pharmacists, or researchers of medical, chemical, or pharmacy research institutes, school teachers and students, people who manufacture or sell drugs, and drug brokers or have previously engaged in such occupations people.

"2. Interpreters, clerks, handymen of the occupying forces, or persons who have previously engaged in such occupations. "3. Bank employees, or people who have worked in banks. "4. People who have engaged in epidemic prevention work in flooded areas. "5. Personnel who returned from overseas after the war and officers and soldiers who have medical experience. "6. People who have obtained or attempted to obtain cyanates from hospitals, medical centers, pharmacies, etc., people who have handled these items due to their duties, and people who have entered and exited large and small factories that manufacture these items. "

These investigative outlines and instructions were issued frequently, and the investigating authorities further studied these cases, found out their "common points", and issued the following circular: "As a result of the research on the above three cases, we found the following points in common, so it is speculated that they were committed by the same prisoner: "1. The location of the crime: All three cases occurred in small banks located far away from the city center, in houses left after the air raids, or on a shopping street. "Second, the time of the crime: the first time was on Tuesday, and the second and third time were on Monday. The murderer chose Monday, probably because he took a fancy to the first day off, and the bank's business must be busy. Every time he chose to do business outside When checking out after the stop, there are no general customers coming in and out, and there are more cash in the second, which is a good time to start.

"3. The attire of the murderer: A white cloth armband is openly wrapped around the left arm, with the words 'Tokyo Metropolitan Epidemic Prevention Team' and 'Disinfection Team' written vigorously in ink on it, with the logo of 'Tokyo Metropolitan City' printed or stamped on it. Fang Yin, in order to win the trust of the other party. "Fourth, using business cards with titles: I used the business cards of Yu Matsui and Erro Yamaguchi with the titles of technicians from the Ministry of Health and Welfare mentioned above, and thus won the trust of the other party.

"5. Common features of the murderer's speech and actions: A. I came back from the epidemic prevention work in the flooded area. B. Epidemic dysentery occurred near the bank. C. The occupying army received the report, according to Lieutenant Parker (or Maca , Hernett, Lieutenant Kotley), the disinfection team came by car. D. The results of the investigation of the patients found out that someone from that bank had brought money to this bank. E. Therefore, the items in this bank All must be disinfected. F. Disinfection class is coming soon, do not move anything. G. Is there any cash out today? H. All personnel must take preventive medicine before the disinfection class arrives. I. Two kinds of medicines are required, After drinking the first one, drink the second one every minute. J. The medicine will damage the enamel on the teeth, so you must drink it like this. K. The murderer ordered everyone to collect the cups, and use a glass straw to drink the medicine from the mouth. The medicine bottle he brought dripped into the cup, and the murderer himself picked up a cup and drank it for everyone to see."

But fifty-seven days had passed since the "Reichsbank Incident" had resulted in the death, and rumors began to spread in the market that the investigation into the case had gone awry.The investigating authorities encouraged the morale of the headquarters and the police stations by saying that the case is "rich in data" and that the facts of the case will definitely be revealed without any suspense.From then on, it became clear that the case had something to do with the old military headquarters.