Behind the tightest of bars
An inmate stands in the door of his cell in a Security Housing Unit (SHU) of California's Corcoran State Prison, an area of the jail used to keep prisoners in extremely strict, isolated conditions.
The SHU facilities are meant for inmates whose behaviour is believed to pose a threat to those around them or to the safety of the jail as a whole. Many are placed there for involvement in prison gangs.
A Corcoran State Prison guard describes homemade weapons on display.
A guard checks a cell in a "general population" block of the prison.
Inmates Jontue Anderson and Kareem Starks, housed in this general population area, share a cell.
Light shines into a cell in the Security Housing Unit (SHU) of the jail.
Richard Heyer, an inmate in the SHU, looks out of his room.
Prisoners are visible behind the doors of their cells.
A guard walks near "cages" where SHU inmates are allowed to spend limited time outdoors.
Brent Shelton looks out from his outdoor "cage".
Prisoners lie on the ground as guards stride into an exercise yard near a general population cell block.
Inmates play handball in the yard near the general population area of the jail.
The sun shines over a guard tower at the state prison.
