In the mirror universe, Yeroff Fuchida was the head of New Sydney Security, which was responsible for maintaining order on the Klingon-Cardassian Alliance planets New Sydney and Sappora VII, during the 2370s.
In 2375, Fuchida was involved in the investigation of the Tigan Mining Consortium's underground railroad that helped more than three hundred Terrans to escape New Sydney and Sappora VII. Fuchida gave an interview on the case to the Alliance News Network. Fuchida was unsure if all the escaped slaves had been helped by the Tigans or if the Orion Syndicate had abducted them. (DS9 - Mirror Universe novel: Saturn's Children)