Overlook Penitentiary, level A1, by the dead body of the guard in the central watchtower.
Silent Hill: Downpour
The Access Card is an item found in Silent Hill: Downpour. It is located in the central watchtower of Overlook Penitentiary's Level A1, by the dead body of a security guard. It grants the player access to the restricted sections of the prison. Ironically, the face of the guard is scratched out.