WEBA method for identifying the manufacturer of sleeping pills used in crime via the analysis of pharmaceutical additives Nobuaki Suzuki, Syuji Okuyama, Yuki Iwai and Motoyasu Sato. Forensic Science Laboratory, Aichi Prefectural Police H.Q. 2 1 1, Sannomaru, Naka-ku, Nagoya-shi, Aichi, 460 8502 JAPAN (Received 11 August 2021; accepted 13 January ...