A substantial number of workers did lose their jobs. The machine was employed in Canada in the 1950s and 1960s during a campaign to eliminate all gay men from the civil service, the Royal Canadian Mounted Police (RCMP), and the military. The subjects were made to view pornography the device then measured the diameter of the pupils of the eyes (pupillary response test), perspiration, and pulse for a supposed erotic response. The ' fruit machine' was a device developed in Canada by Frank Robert Wake in the 1950s that was supposed to be able to identify gay men (derogatorily referred to as ' fruits'). Device that could purportedly identify homosexual men
