Britain's most senior police officer with responsibility for public order raised the spectre of a return of the riots of the 1980s, with people who have lost their jobs, homes or savings becoming "footsoldiers" in a wave of potentially violent mass protests.
Superintendent David Hartshorn, who heads the Metropolitan police's public order branch, told the Guardian that middle-class individuals who would never have considered joining demonstrations may now seek to vent their anger through protests this year.
He said that banks, particularly those that still pay large bonuses despite receiving billions in taxpayer money, had become "viable targets". So too had the headquarters of multinational companies and other financial institutions in the City which are being blamed for the financial crisis.
Hartshorn, who receives regular intelligence briefings on potential causes of civil unrest, said the mood at some demonstrations had changed recently, with activists increasingly "intent on coming on to the streets to create public disorder".
The warning comes in the wake of often violent protests against the handling of the economy across Europe. In recent weeks Greek farmers have blocked roads over falling agricultural prices, a million workers in France joined demonstrations to demand greater protection for jobs and wages and Icelandic demonstrators have clashed with police in Reykjavik.
In the UK hundreds of oil refinery workers mounted wildcat strikes last month over the use of foreign workers.
Intelligence reports suggest that "known activists" are also returning to the streets, and police claim they will foment unrest. "Those people would be good at motivating people, but they haven't had the 'footsoldiers' to actually carry out [protests]," Hartshorn said. "Obviously the downturn in the economy, unemployment, repossessions, changes that. Suddenly there is the opportunity for people to mass protest.