Christopher Rodrigues, Chairman from VisitBritain:
Security is of course paramount, but it would be a tragedy if all the work being put in to showcase Britain around the Jubilee and the Olympics was undermined by a negative first impression as the world's press arrives to cover these events.
More top news
Rising pupil numbers in the capital are putting pressure on the system.
Darren February, 33, has been sentenced to eight years in prison for stealing almost £1 million worth of jewellery from Simon Cowell's home.
Stephen Calcutt, 55, is displaying his work in a London exhibition later this month.