The conditions at Security Housing Units (SHU) at Pelican Bay Prison, and other Supermax prisons, clearly constitute torture and/or cruel, inhumane treatment of prisoners. It relies on the use of severe isolation or solitary confinement, the effects of which I’ve written about before in the context of the Bradley Manning case (see here and here). At Pelican Bay, the prisoners in “administrative segregation” are locked in a gray concrete 8′X10′ foot cell 22-1/2 hours per day. The other time (if that privilege is granted) is spent alone in a tiny concrete yard. There is no human physical contact. No work, no communal activities. If the prisoner has enough money they can purchase a TV or radio. Meals are pushed through a slot in the metal door.