If you are very worried about prosecution and it may only be on the spot fines comparable to those for public peeing without criminal conviction, I would imagine, you will have to take a few trips over to England or Germany etc. Although you may not be able to access their websites from here as apparently the nutters want that equated to a paedo downloading child porn, the consequences of which would be far worse than being prosecuted for trying to engage or actually engaging with a fully legal sex worker and being caught! How insane is that?