Star Trek: 10 Things You Didn't Know About Section 31
8. Daystrom Station
Daystrom Station was a remote space station named for Federation scientist Richard Daystrom and operated as a Section 31 black site. They used it to store secret information, experimental weapons, surveillance equipment, weird science, alien contraband, torture devices, dead bodies, and other odds and ends.
The station was patrolled by Starfleet Security every hour and used transport inhibitors to prevent illegal entry. If an intruder got around them, it was guarded by the highly adaptive Android M-5-10 which could create custom responses using holographic projectors.
M-5-10 was a golem, a type of organic android, created by Altan Soong as a synthesis of the memories and personalities of Soong-type androids including Data and Lore.
During the Dominion War, Daystrom Station was home to Project Proteus, an attempt to turn Changeling POWs into undercover agents who could perfectly mimic humanoids with simulated blood and organs. Altan Soong also used it to research the death of Picard's original body.
Behind the scenes, Star Trek effects artist Doug Drexler built Daystrom Station's initial CGI model with features resembling elements from Jupiter Station, the MIDAS Array, the Epsilon IX station, and Y class cargo modules. Once his model was approved, it was sent to the VFX Department for further refinement.