Well that's paedophilia solved then
Some sort of audible warning on guns to stop drive-bys maybe?
Proposed US legislation could, if adopted, force manufacturers to produce cameraphones that issue audible warnings each time you snap anything from friends and family to your neighbour’s bloomers on the washing line. The Camera Phone Predator Alert Act – put forward earlier this month by New York Republican Peter King - is …
If people are willing to ignore existing laws, what the heck makes them think they'll abide by this one?
And if I was a dirty pervert, a phone camera is the last thing I'd pick to take my ill-gotten images. There'es tonnes better choices from tiny wireless spy cameras to proper point and shoot cameras that are as small as a phone anyway (but higher quality images).