A damning report by the think tank Policy Exchange today revealed that the widely held perception the force treats protest groups differently was in fact a 'reality'.
Footage shows the TV personality being led away by officers in Knightsbridge near Hyde Park at a counter-protest against the planned UKIP demonstration.
Four activists, believed to be supporters of campaign group Stand Up To Racism, were seen being detained by Met Police officers in the Hyde Park Corner area on Saturday afternoon.
Hundreds of Stand Up To Racism counter protesters were seen clashing with police after a UKIP rally in Manchester calling for mass deportation edged on violence, on Saturday afternoon.