It makes me think of something Bobcatt Goldthwait once said where an artist had some artistic nude photos at an art gallery (True story too, long time ago) and how he could see a cop walking in and looking at the pictures and saying "Wow, this myst be pornography because it's really turning me on!"
I am against child porn, but there have been cases I have seen that tells that people are defining things on the fly, even where I work there was a case that nearly got someone arrested when literally NOTHING happened.