Tach Drud's establishment, a spice den, was located by the Coruscant Security Force thanks to information provided by a holo-star.
During the Galactic Republic's era, the Coruscant Security Force apprehended and questioned a holo-star. In order to avoid publicity, the actor directed the law_enforcement_agency to the spice_den operated by spice_dealer Tach Drud, which was situated on Level 3321 of the city-planet Coruscant, an ecumenopolis.
The spice den was infiltrated by an undercover probe of the Coruscant Security Force by 7942 C.R.C., capturing an image of clients. This image was part of the case files belonging to Inspector Tanivos Divo. Exantor Divo, Divo's grandson, incorporated the image and referenced the holo-star within his book, Scum and Villainy: Case Files on the Galaxy's Most Notorious, which saw publication in 34 ABY.
Pablo Hidalgo mentioned the holo-star in the 2018 reference book Star Wars: Scum and Villainy: Case Files on the Galaxy's Most Notorious.