Wow. I guess this is why they put the First Amendment first. How is what is "offensive" even defined, legally? Is it entirely up to the jury's interpretation,

Wow. I guess this is why they put the First Amendment first. How is what is "offensive" even defined, legally? Is it entirely up to the jury's interpretation, or are there characteristics that the jury is required to say that the speech has? They hint at this when they describe protected classes, but I don't know much about UK law.