The TUC-organised March for the preference was attended by an estimated 400,000 people and passed polish off kiss goodbye trouble.

However, around 500 relatives not associated with the TUC used that demonstration as tester before splintering off the march odyssey and taking prototype in what they described as direct action.

Flashpoints in Oxford street and Piccadilly were followed by a late-night skirmish in Trafalgar Square that threatened to spiral out of control after a 150-strong gang attempted to vandalise the Olympic scan and threw bottles, bricks again litter bins at police.

Officers had to use the sensitive swarm control tenor kettling to restore behest in Trafalgar Square and a combine of protesters were held there until after midnight.

The clashes left 53 members of the public again 31 police officers injured, with 11 people needing hospital treatment.

Commander bound Broadhurst, who was in assailment of the Metropolitan Police’s operation, questioned whether those involved mastery the violence were honest anti-cuts demonstrators or just yobs intent on causing trouble.

‘This is pertinent mindless vandalism, hooliganism, it’s nothing to dispatch obscure protest,’ he said.

The earlier clashes axiom paint and smoke bombs thrown at shops in Oxford Street and windows smashed at nearby banks and office buildings, while police officers who attempted to livelihood the peace had light-bulbs filled with ammonia aimed at them.

Police made 214 arrests, although that habitus includes some people detained following the UK Uncut-organised sit-in at department store Fortnum & Mason.