I was there in 2006 and saw a number of switchblades for sale all over the island so i would have to assume (I know...) that at least they are legal. There was a martial arts store in Luqa that sells just about everything. I would say you could carry folders but don't wave them around (like anywhere) and you should be fine. I never had an issue with mine and the clip was always hanging out of my pocket. You could email a martial arts place as well, they should have info or be able to find it.