1.   Prisoners can only leave their cells under certain circumstances.

2.   One has been shown to have a direct effect on killing cancer cells while leaving normal cells unharmed.

3.   And like other prisoners in solitary confinement, he was shackled whenever he left his cell, even while exercising or meeting with his lawyers.

4.   As part of that policy, criminals were routinely allowed to leave their cells for unsupervised weekend furloughs.

5.   At night, when the guards were not making their rounds, he would leave the cell and wander the halls, chatting with the other prisoners.

6.   But he maintained it also could be used to induce inmates to leave their cells and posed less risk of injury than twisting a wrist.

7.   Handcuffs are required whenever a convict leaves his cell.

8.   He refused to cooperate with the order that he leave his cell on Death Row in the Terrell Unit in Livingston.

9.   He said the shields were used primarily during confrontations that erupted when inmates left their cells during searches.

10.   He would not say whether some inmates had refused to leave their cells or go to work.