I am not entirely clear on all of the particulars of the mitzvah of pidyon shivuyim - redeeming Jewish captives. Nor am I positive that someone jailed by a democratic goverment for breaking secular ...
For example, what does Halacha say about the Gilad Shalit prisoner exchange? "Save" means "free from captivity," although in many cases it's the same thing as saving his\her life (e.g. if we didn't ...