Even inmates are already covered by the same bill of rights that we all are protected by, and there is no need for additional documentation. Where we do need to adjust our efforts is in enforcing these rights across the board, i.e., some states and localities tend to "interpret" civil and humanitarian rights to the incarcerated by its cost effectiveness and not by standing constitutional law. While it is true that accusation of breaking the law will suspend some of your rights, the constitution should be crystal clear of the rights that the incarcerated retains. I am no expert in this. If the constitution is found to need amending in this regard, I may change my opinion.