English to Spanish Law/Patents Law (general) prison industry / corrections / law enforcement

Seguramente existe la práctica pero no sé si existe el término:

"THE MOST EXTREME FORM OF ISOLATION IS THE *QUIET CELL* WHERE A PRISONER FINDS HIMSELF IN A STRIPPED CELL, WITH JUST A MATTRESS ON A CEMENT BLOCK AND A METAL TOILET AND SINK. HE IS ALLOWED NO PERSONAL PROPERTY AND THE LIGHTS MAY BE KEPT OFF AT INTERVALS OR COMPLETELY AT THE DISCRETION OF THE STAFF.

THE SIX *QUIET CELLS* ON THE GROUND TIER IN B SECTION ARE STRIP CELLS SIMILAR TO THOSE IN AC. HOWEVER, THESE HAVE NO CEMENT BLOCK -- THE MATTRESS IS JUST PUT ON THE FLOOR. THERE ARE METAL SINKS AND TOILETS IN MOST OF THE CELLS, ALTHOUGH THE GUARDS FLUSH THE TOILETS FROM THE OUTSIDE ONLY ONCE A DAY. A PARTICULARLY TROUBLESOME PRISONER MAY FIND HIMSELF STARK NAKED IN A DARK CELL WHERE EVEN THE METAL TOILET AND SINK ARE REMOVED."

-gracias de antemano