http://www.archive.org/details/VideoOfPlinthOccupationInParliamentSquare
After setting up a living statue on a vacant plinth in the Square, Maria placed her tent there, which was not on the grass nor causing an obstruction, and she peacefully remained for more than 30 hours. True to type, the authorities seized the opportunity to have another go, which included roughly manhandling a woman supporter, which was shown on public television, and then finally evicting Maria from the plinth, further details here:
Yet Another Parliament Square Eviction
http://www.indymedia.org.uk/en/2007/10/384067.html
To find out more:
http://www.parliament-square.org.uk/
http://www.indymedia.org.uk/en/actions/2006/socpa/