CHIBA, Japan, Feb. 5 (UPI) -- A man with no medical training has admitted using a bogus sleep study to rape and videotape scores of women, police in Japan said.
Hideyuki Noguchi, 54, allegedly made about $100,000 by selling video of the sexual assaults to pornographic websites. He was arrested after one of his alleged victims discovered she was featured in a pornographic video.
Noguchi, who allegedly drugged his victims, has been charged with the incapacitated rape of about 40 women. But police said he told them he had about 100 victims through November 2013.
Four new charges were added this week. Noguchi has been charged in Chiba District Court in the Tokyo area.
Investigators said that Noguchi, who is not a doctor and has no medical training, advertised in 2012 for volunteers for the study, saying he needed women who were anywhere from the late teens to early 40s.
Noguchi allegedly told them he was conducting a study of how drinking alcohol affected blood pressure.
The sexual assaults took place at business hotels and hot spring resorts, police said. The victims were from the Tokyo area, Osaka and other places.
