Inappropriate ads on Facebook?

most of the time the ads on facebook are generated by statistics gathered by marketing companies based on your internet activities this may or may not be the case with the ads you are seeing, however regardless of that the ads (although displayed on there site) are not controlled by facebook, i think you will find that in order to be convicted under the statues you are referringg to under US and UK federal law you must prove that facebook was negligentt (ie did not perform a action that a reasonable company would have done to prevent access to the content)