This is the sinister development that appalled many of the honest Londoners who were marching on Wednesday November 30th through the streets of Central London.
For the first time ever I saw disbelief in their faces.
They were being kept out of their own city by what had all the hallmarks of a Berlin Wall.
But this was not Berlin in 1961. It was London 2011. It was Trafalgar Square. It was a Police State in the making.
The day Londoners could not believe their eyes.
First ever portable Berlin Wall unveiled to the world by London police on November 30 2011 - eight months before the London2012 Olympics.
Complete set of photos of the peaceful strike march organised by UK trade unions and taken on November 30 2011 is available on blog page London's #Nov30 Strike March.
All pictures by Arbolioto Twitter & Blog. Pictures of the march can also be seen on Arbolioto Twitter taken on November 30 and tweeted same day.