On 12th May, the City of London police (and some of the met police too) were acting rather stupidly, randomly trying to throw cordons across a march of around 700 people, sometimes succeeding, sometimes failing, mostly pissing people off.
As part of the 12M Global Day of Action that occurred in over 350 cities, around 700 protesters gathered at St Paul's to take a tour of the financial institutions responsible for much of the crisis. Throughout the 'Meet the 1%' march, City of London police repeatedly tried to slow and halt the march and there were clashes as people pushed through police lines. The tour concluded at the Bank of England where an assembly was held. Police ordered the assembly to disperse and when it refused they sent in squads to violently drag people off the steps and make around 11 arrests.