Patience is a virtue that many people can use a bit more of.
Bikinis are apparently your thing, since you have so many pics of bikini-clad women up. However, some of us (especially any Dom/mes who might look in at this thread) prefer the sub to be wearing nothing.
In a prison scenario such as you are postulating, I would venture a guess that the administrators/gaolers/wardens/jailers/guards would keep the inhabitants nude much of the time. Stripping a girl of her clothes strips her of any covering and exposes her body to the general population, which in turns wears down on her sense of self. An effective, if slow, form of psychological torture in and of itself. Also, it also makes for better hygiene and a more cost-effective operation, since you don't have to worry about prison laundry. All you have to do is aim a hose through the bars (preferably with ice-cold water) and hose the prisoner(s) off.
I applaud your effort at writing/communicating with others in a language which is not your native tongue; it's an extremely difficult thing to do. I would know, I've tried it and failed. However, since not all of the posters/ readers of posts on this forum are English-speaking/native English speakers, much of what you said might seem a bit obscure and difficult to read. Perhaps you'd have better luck searching the Library's story archives for stories involving the torture/abuse/interrogation of prisoners. There are some good ones on here (I can't remember any specific titles, but I'm sure a search of the archives will turn some up, especially with the current controversy involving the prisoner abuse over in Iraq.)
Good luck!