Telsian Security was the law enforcement agency of Telsius Prime and its surrounding area.

This agency had a reputation among the miners of the Telsius Prime mining colony of having "persuasive methods of determining the truth".

Kathryn Janeway, while attempting to stop Dala from impersonating her in 2376, threatened to turn her over to Telsian Security. (VOY: "Live Fast and Prosper")

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