People who like to take random photos in public places (like these unfortunate ACLU plaintiffs) are subject to harassment by law enforcement. They shouldn’t be. But they are.
While there is a fair amount of material providing general legal guidance focused on the writing side of blogging (such as at CMLP and EFF), there is a paucity of material advising you on what you can and can’t get away with using a camera.
The best resource I’ve found – although about six years old – is this legal memorandum [pdf] from Kurt Wimmer and John Blevins at the law firm of Covington & Burling, done for the National Press Photographers Association. From the memo:
In summary, we find that there is no federal law that justifies the broad prohibitions that are being imposed on photography in public areas. There is no new federal law, including the Patriot Act, that restricts photography of public buildings and installations on the basis of concerns over terrorism. Restrictions of photojournalism that proceed on this basis may constitute violations of journalists’ First Amendment right to gather news.
I’ll think I’ll print out a copy and put it in my camera bag.