One CorSec Plaza was a building located within CorSec Plaza in Coronet City on the world of Corellia. It was the headquarters of the Corellian Security Force. Ex-CorSec agent Corran Horn, during his training at the Jedi Praxeum on Yavin 4, once told Luke Skywalker that he could have marched Bossk, the bounty hunter who had killed his father into One CorSec Plaza, pull out a blaster, shoot him in the head in front of hundreds of witnesses, and that everyone present would have sworn that the Trandoshan was "resisting arrest" and was a danger to those around him.