Summarizing legal context

I’m working on summarizing the legal basis in UK law for prosecuting offensive online speech, specifically regarding Barton. There are key points to cover, like timelines, sentencing ranges, and background on Barton.

I could provide options like a quick summary link, context about Barton, or an explanation of UK law on "grossly offensive" communications. This might get complex, so I want to stay concise while providing helpful information. I should include a caution about defamation too!