The Alien Protection Zone existed on the planet of Coruscant as a district surrounded by walls. It was isolated and separated from the main parts of Imperial City by these walls. To align with the Galactic Empire's principles that placed humans as central, frequent stormtrooper patrols were implemented, and the residents of the zone faced constant disturbance from these armored forces.
The initial reference within the existing Star Wars canon to the Alien Protection Zone appeared in the fifty-third edition of the Star Wars: Build the Millennium Falcon magazine, which was released on January 6, 2016.