As someone who engages in street photography regularly, I’d like to recommend to you Taking Photos In Public Places Is Not A Crime: Analysis, by Glenn Harlan Reynolds, law professor at the University of Tennessee and blogger at Instapundit.  I also recommend 5 Tips for Street Photography by Brian Q. Webb on Craig Ferguson’ s blog.  I was happy to discover that in my own self-taught way, I was already using most of them, but Webb gave me reasons for them that I hadn’t thought of.