buddhism does have that all encompassing concept of freedom, which i find easier to understand; free of choice, free of desire, free of burden, free of life - nothing.
as how kiya showed it in her post, there are many levels & concepts of freedom. & having the topic that wide, this debate has become very convoluted & inconclusive right from the first shot made by barta.
cleg's answer formed in question (double jeopardy?) is a one word says it all & it looks like a winner.
is freedom at its most basic actually a sense to detect it? strip away a person's freedom of anything down to nothing (as how it was done by nazis in concentration camps in WW2) & u strip away his humanity. but if u leave his sense of freedom especially that of thought, he is still 'free' in a way.
freedom an ability to make choice? i think it is. again in the barest form of freedom, especially in oppression, one remains free to hold/live on or give up.
kiya, is relative freedom another word for controlled/regulated form of freedom? may not be extrisinct factor that does the controlling/regulating but it can also be intrisinct. just like some countries have their own versions of democracy? malaysia for instance practises some kind of controlled democracy. not to the sense that it's oppressive but then not totally liberal either.