The Boise homosexuality scandal refers to a sweeping investigation of a supposed "homosexual underground" in Boise, Idaho that started in 1955. Beginning with the arrest of three men in October 1955, the investigation broadened to encompass allegations that over 100 young men and teenage boys had been involved in sexual acts with a ring of adult homosexual men. By the time the investigation wound down in January 1957, some 1,500 people had been questioned, sixteen men faced charges, and fifteen of them were sentenced to terms ranging from probation to life in prison.