http://library.municode.com/HTML/14787/level2/TIT11VETR_CH11.68PEMA.htmlChapter 11 had some small bit about busking on a pedestrian mall (which I assume is most of the strip and otherwise where you would best busk anyway). Maybe I'm wrong but it looks to be mostly legal unless a particular casino doesn't allow it on their grounds. Juggling outside of Excaliber with a jester uniform? Maybe. Playing electric blues in the canals of the Venetian? Probably not. Looks like Stryder the juggler attracted some attention from some angry security with nothing better to do.