Students protesting at the University of London have accused police of kettling them in a logical paradox as a number of students were beaten up and arrested for protesting about students being beaten up and arrested at a protest to highlight the plight of students being beaten up and arrested.
The police tactic of paradoxical kettling has been criticised before. The last time came during student protests opposing tuition fee rises.
On that occasion protesters were subject to paradoxical kettling for not dispersing despite being kettled for non-dispersal from a kettle.
Some have accused the police of losing control over the protests around the University of London, and using excessive force to make up for a lack of sensible policing tactics.
When the question of tactics was put to the sergeant in charge of policing the peaceful protest, our reporter was respectfully tasered.