The paramilitary organization known as the Marley Public Security plays an important role in maintaining order and control within the Eldian internment zones of Marley. As the primary security force stationed in Marley, the PS is responsible for a variety of duties related to the oppression and containment of Eldians. This includes restricting the movement of Eldians, countering dissident movements, and exiling undesirable Eldians to Paradis Island to be transformed into Pure Titans.