Internment Camp 371 Internment Camp 371 was a Dominion mining and , later , a prison facility located on an asteroid orbit ing a gas giant planet . In the camp , Jem ' Hadar weapons were always set on maximum , which would vaporize prisoner s for the smallest infractions . History . The camp was originally built on the asteroid as an ultritium mine . It contained several barracks to house miners , each with a separate life support system . The whole habitable area was covered by an artificial biosphere , beyond which was lethal . There was at least six barracks , each able to hold about ten miners . The Dominion later converted the camp into a prison by 2371 , using the barracks as prison cells for multiple prisoners . The camp , led by the Vorta Deyos and Jem ' Hadar led by Ikat ' ika , held many survivors of the Battle of the Omarion Nebula following the destruction of the Romulan / Cardassian fleet , including Enabran Tain . It also held people who were replaced with Changeling infiltrator s such as Julian Bashir and Martok . The Jem ' Hadar would put prisoners into isolation if they misbehaved . They also fought against prisoners , especially Klingon s , in order to learn their fighting styles . As noted to incoming prisoners , the camp did not have any watchtowers or fences - being located on an airless asteroid , there was simply no " perimeter " which prisoners could try to escape beyond . While Tain was held , he spent over a year to modify one of the old life support systems in his barracks to create a subspace transmitter . The transmitter was used to send a message to Elim Garak . When Garak was captured attempting to track down the signal in 2373 , he and Worf were sent to the camp , where they discovered Tain as well as Bashir and Martok . Tain died at the camp shortly after , and Garak was able to change Tain ' s modifications to allow the group to contact their runabout left in orbit , and escape . ( ) Several months later , General Martok noted that his time in Internment Camp 371 had " dulled " his reflexes . Worf himself told Benjamin Sisko of his experience of tova ' dok with Martok in the camp . ( ) In a Section 31 holodeck program , Luther Sloan questioned the ease with which Bashir and the group had escaped Internment Camp 371 . In the program , Internment Camp 371 was supposedly where Bashir became a Dominion sleeper agent after being brainwashed by Weyoun . Sloan suggested Bashir had been allowed to escape to gather information the Dominion would later collect . ( ) Appendices . Background information . Internment Camp 371 was conceptually based on a Nazi prison camp from the film " The Great Escape " . ( " " , p . 422 ) In the script of " In Purgatory ' s Shadow " , the camp is described thus ; " " This is a domed over area on the asteroid surface . It serves as the central area / prison yard for a Dominion Internment Center [ . . . ] This facility is for an elite group of P . O . W . s , people who the Dominion is especially curious about . " " The exterior of Internment Camp 371 was designed by Illustrator John Eaves , who planned it in a concept sketch . ( " " , p . 423 ; ) Stated Visual Effects Supervisor David Stipes , " " That was a model that John Eaves built , and we shot it over at Image G . " " ( " Cinefantastique " , Vol . 29 , Nos . 6 / 7 , p . 40 ) The look of the facility ' s interiors was added to by Production Designer Herman Zimmerman , Set Decorator Laura Richarz , Construction Coordinator Thomas J . Arp , Property Master Joe Longo , as well as other members of the creative staff . The main part of the Dominion prison was built as a large set , on Paramount Stage 18 . The same set even included a crawlspace area containing the sabotaged life support system ; this tightly confined place was adorned with fiber - optic lights and a mix of tubes , and was painted with drab colors . " " It was very grim , " " Richarz said about the camp . " " Everything was dark gray and kind of dirty . " " As usual , the group devised some creative uses for commonplace items , transforming CD racks into light fixtures for hanging above the beds in the prisoner barracks , and turning plastic Christmas tree stands into plant - ons to stick on the walls . ( " " , pp . 427 - 428 ) Apocrypha . Internment Camp 371 also appears in the DS9 segment in the second " " release ; this segment is set before the events of " In Purgatory ' s Shadow " and " By Inferno ' s Light " . In the game " " , the exterior and interiors of Arduria station resemble Internment Camp 371 .