The establishing shot of the starbase where Eddington is being held is re-used stock footage of the Regula I space station from Star Trek II: The Wrath of Khan (1982).
The holding cell where Sisko visits Eddington is a re-dress of the USS Voyager brig set, moving the cell from a point to frame right of the door to directly across from it. This version of the set would be seen again in the episode "Waltz", this time with a stretch of USS Defiant corridor erected outside to serve as the interior of the USS Honshu, and again in "The Magnificent Ferengi" as the brig of an unnamed Regula-type starbase.
The B-story of this episode was created to reassure viewers that General Martok was still on the station after the events of "Soldiers of the Empire".
Eddington states that Cal Hudson, played by Bernie Casey in "The Maquis, Part I" and "The Maquis, Part II", has been killed by the Cardassians.
The first and only appearance of a Jefferies tube aboard a Danube-class runabout. Where on the relatively tiny runabout the Jefferies tube is located is not specified.