
"I capture the demons who have forgotten their promises to the Netherworld. But it's not just demons we capture; it's other creatures as well. For example, humans and their ilk." ― Azazel Henri[1]
The Demon Border Patrol or Demon Border Control (in the anime), abbreviated as the Border Patrol or the D.B.C.,[2] is a police force of the Netherworld that hunts down criminal demons and intruders from other worlds, like humans. They are in charge of maintaining order in demon society, which could sometimes mean defending the interests of high-ranking demons against the ones of the lower classes.[3] But the organization doesn't lack political power being well represented at the table of the Thirteen Crowns.
Locations[]

The Border Patrol Station: when the Border Patrol detained Lord Sullivan for questioning regarding an illegal intrusion into the human world, they took him to a heavily fortified station located on a flying island. However Lord Sullivan broke out rather easily when he needed it to.