I’m an amateur photographer for some time now and while I really don’t photograph people, at least easily identifiable people, it’s prudent to know the law. Abolt is correct. In general, it’s not illegal to photograph anyone unless there’s a reasonable expectation of privacy in the US, unless you’re doing it for nefarious reasons, like stalking. That is not true in many other countries. For the most part, outside of a bathroom, etc. if you’re in public, you’re fair game. As for taking photos of someone in a private location, like a hospital or building, the owner/manager would have to tell you to stop. I would guess most hospitals have this as a policy, ours does and it’s posted in preop, post op, etc. However that’s still not illegal, just an invasion of privacy. One could call security or the police to have you removed if you refused to stop or leave, but that would be for trespassing. You’d have to sue the person who took your photo in civil court. I suppose a good shark could try to argue invasion of privacy and emotional damages. If they never published the photo, I’m not sure you could prove damages. I’m not sure the police would trespass them either if they stopped after you asked and simply refused to delete the photos. Probably not worth finding out, but if Karen goes to 11 screaming and carrying on, citing law that doesn’t exist, etc. I can see someone saying,”Ok, let’s do this.” People do this to the police and sue them for unlawful arrest, violation of their civil rights, etc.