If there are natural human rights, what does that mean for, e.g., prisoners? Is the right to personal freedom not a natural right? If it is, can natural rights

If there are natural human rights, what does that mean for, e.g., prisoners? Is the right to personal freedom not a natural right? If it is, can natural rights be taken away? Under what conditions? Or is imprisonment a breach of natural rights, and what does that imply? It's pretty hard to pin down what natural rights are. That a society ought to consider the limits of normal human behaviour I don't dispute, but that just informs the rights a society grants its members. Rights are still a human social construct.