The inspectors were the brutal secret police of the equally brutal and repressive Swemmel of Unkerlant, the king of Unkerlant. Their job was to ensure "efficiency" in the country, often by arresting real or fancied plotters to labor camps in Mamming Hills or boiled alive. They often placed the most loyal officials under suspicion on Swemmel's mere whim.

They were also used immediately after the Twinkings War to purge the civilian, military, and bureaucratic establishment of pro-Kyot of Unkerlant supporters.