These inmates are kept in administrative segregation; they are kept in solitary confinement for 23 hours a day. During their hour outside the cell, which can occur at any time of day or night, they are kept under restraint (handcuffed, shackled, or both). The hour outside of the cell is for exercise and a phone call if they have earned the privilege. Their diet is restricted to ensure that the food cannot be used to harm themselves or to create unhygienic conditions in their cell.