Would that all re-enactment societies were as easy-going as The Sealed Knot, for this is exactly what Unite Against Fascism is, intent on recreating the street violence of 1930s England. No one's told them, it seems, that Oswald Mosley is not the threat he once was (what with being dead, and all that). So, without bothering with period costume, they engage in period sloganeering, such as 'No pasaran! They shall not pass!' and set about preventing groups they oppose from demonstrating. As this is an attempt to prevent other groups exercising legal rights, they often come into conflict with the police, who do not necessarily approve of their re-enactment activities.
The problem is that this group is endorsed by so many prominent politicians, who seem content to have a militant rent-a-mob to hand if required. Hopefully the latest trouble in Bolton will force some of them to back off support for such a stridently illiberal group.