Fujisawa-mura, Irima-gun, Saitama Prefecture; Tanaka Tokukazu, being under treatment, of 793 Kami-ochiai 2-chōme, Shinjuku-ku; Akiyama Miyako (23), died, c/o Akiyama Kunosuke, 18 Nagasaki i-chōme, Toshima-ku; Uchida Hideko (23), died, of 5 Kita Toyotama, Nerima-ku; Akuzawa Yoshiko (19), being under treatment, c/o Akuzawa Shobei, of 14 Nagasaki i-chōme, Toshima-ku; Kato Teruko (16), died, of 1-713 Ikebukuro 2-chōme, Toshima-ku; Takeuchi Sutejiro (49), died, of 170 Horikiri-chō, Katsushika-ku; Takizawa Tatsuo (46), servant, his wife Ryu (49), his daughter Takako (19) and son Yoshihiro (8), all of them died, all of them resident of Shiinamachi branch of Teikoku Bank / Offender: Name and address: unknown / He said he was a medical member of Sanitary Section, Tokyo Metropolitan Office and of Welfare Dept, Welfare Ministry, and had a title of Doctor of Medicine / Presented name-card: ‘Yamaguchi Jiro MD; Technical Officer; Ministry of Health & Welfare.’ / Description: Aged between forty-four and fifty, about five feet three inches in height, rather thin, with oval face, high nose, pale complexion, hair cut short or rather long and grizzled / Appearance: Dressed in a lounge suit (brown, figured weave, not new); with an overcoat or spring coat on arm; wearing brown rubber shoes (not certain); a white cloth band on left arm (which had on it the mark of Tokyo Metropolitan Office in red, and under the mark was written in black and good hand ‘Leader of Disinfecting Team’ or ‘Disease Preventative Doctor’ / Articles possessed by the offender: A metal box, about 3 cm x 15 cm in size, such as often carried by doctors (he took the poison out of this box); one small and one medium-sizedglass medicine bottles (holding poison) / Characteristics: Two brown spots 1.5 cm long on left cheek (not scars of burns or boils, but such as often seen on the skin of an old man). A handsome man; well composed and looking like an intelligent man / Brief account of the case: The victims opened their business as usual at 0930 hrs, and after Ushiyama Senji, their manager, went home with stomachache about 1400 hrs, continued at their work till 1500 hrs, when they closed the front door and began winding up the remaining affairs for the day / At approximately 1530 hrs the offender made his sudden appearance at the side entrance and, showing his name-card (printed with false title, as described above) to Akuzawa Yoshiko, one of the victims, expressed his wish to see the chief. So the latter showed him into the office-room, and Yoshida Takejiro, the assistant chief, had a talk with him / According to the statement of the offender, there have cropped up a number of dysentery cases among those who drink the water of a public well in front of Aida’s, and have been reported to Lieutenant Porton (or something sounding like that) as well as to the Japanese police. So a disinfecting team of the Allied Forces was coming, he said. He himself was dispatched by the lieutenant in advance of the said team to make an investigation, as a result of which he found that an inmate of the house of a dysentery sufferer had visited their office on the day. In accordance, everything in the office, including the books, papers, banknotes, etc., must receive a disinfecting process, for which nothing should be carried out till the arrival of the disinfecting team, he declared / When Yoshida said to him: ‘How can you have got the knowledge so soon, I wonder?’ the offender said in reply: ‘In truth, the doctor who made an inspection of the sufferer has made a direct report to the Occupation authorities.’ / ‘The disinfecting team will soon be here,’ continued the villain, ‘and in the meanwhile you all must take this medicine given us by the Occupation authorities. This is a medicine so powerful and effective as to make you absolutely immune from the dysentery if you take it.’ So saying, he took some phials, large and small, out of his medicine chest (a metal chest