A prison facility situated on the planet Berrun functioned under the authority of the Galactic Republic throughout the Cold War era, which involved conflict with the Sith Empire. Overseen by a warden, this facility served as a place to incarcerate individuals belonging to the Surgeons—a squad operating within the Republic Special Forces Division's black ops program. These individuals received life sentences following their conviction for war crimes. Among the incarcerated members of the squad were Karsim, Naja, and Eckerd. The warden communicated to their previous commanding officer, Sergeant Fideltin Rusk, that the squad took pride in having targeted the families of enemy leaders that they were tasked with eliminating.
The Berrun detention center was initially referenced in the "The Surgeons" dialogue with the Jedi Knight companion, Fideltin Rusk, within the 2011 BioWare–LucasArts video game Star Wars: The Old Republic.