A report about Tommy Robinson states the following:
In an earlier statement, the force said organisers had "been clear about their concerns that the man's attendance, and that of those who were likely to accom pany him, would cause fear for other participants. "The same view has been voiced by others. "As a result he was spoken to and warned on more than one occasion that his continued presence in the area was likely to cause harassment, alarm and distress to others. "He was directed to leave the area refused to do so."
Here it seems alleged by police the man’s very presence was sufficiently upsetting to people, including the March’s “organisers,” to constitute an offence. Can one’s very identity be enough to render one’s presence in an area an arrestable criminal offence?