https://reclaimthenet.org/uk-appeal-quashes-conviction-of-man-found-guilty-of-sending-a-grossly-offensive-email-to-local-politician
"In the UK, the Court of Appeal has taken a stance on what constitutes “malicious communications” – and when speech should not be construed as such, because it is part of a political debate.

The appellate court ruling in R (Crown) v. Thomas Casserly overturned the first instance judgment that found a man guilty of violating the 1988 Malicious Communications Act."