Black market is a term for an illegal economy that is not regulated.
History and specifics[]
Many goods are sold in this manner, such as weapons and drugs.
The Orion Syndicate operated in the black market. (DS9 novel: Andor: Paradigm)
The Ferengi control the black market for meat on Vulcan. (ST reference: Federation Passport)
The black market thrived on Terok Nor during the Occupation and was run by individuals such as Quark and Ibudan. (DS9 episodes: "Necessary Evil", "A Man Alone")
Quark would later maintain links with the black market when the station became Deep Space 9, although under Odo's constant watch. (DS9 episode: "The Passenger")
Romulan remat detonators are sold on the black market. (DS9 episode: "The Darkness and the Light")
After she stole the USS Platte, Pak Dorren planned to sell its tritium on the black market. (DS9 novel: Time's Enemy)
In 2372, Varis Sul dabbled in the black market for much needed supplies. but almost lost her position as Tetrarch as a result. (DS9 novel: Wrath of the Prophets)