feetlebaum Section 5 of the POA 1986 states that a person is guilty of a criminal offence if he:
a) uses threatening, abusive or insulting words or behaviour, or disorderly behaviour
or
b) displays any writing, sign or visible representation which is threatening, abusive, or insulting within the hearing or sight of a person likely to be caused harassment, alarm or distress thereby.
Threats and disorder are already covered by other laws. The problem is criminalising insults and offence even if no one has been caused "harassment, alarm or distress". That is what Rowan Atkinson (and quite a lot of other people) wants to change.