This The Mentalist screencap contains
grillage and clôture grillagée.
There might also be
cellule de détention, établissement pénitentiaire, prison, tintement, slammer, poky, rikiki, clink, and pokey.
As the CBI investigates the murder of a young girl and the abduction of her twin sister, Lisbon suspects that Red John is trying to draw Jane into a trap.