The hospitality industry is bracing itself ahead of expected protests at the G20 summit in the capital.
Landmark properties such at the Ritz hotel in London have opted not to take any risks and have boarded up to avoid damage if protests turn ugly.
The summit, which will take place tomorrow (2 April) will see world leaders, including newly elected US president Barrack Obama, meet at the ExCeL Exhibition centre in Docklands to discuss plans to tackle the global economic crisis.
Ahead of the summit, Jamie Oliver has been chosen to cook at a dinner at Downing Street and will be producing a menu of Welsh lamb, asparagus and flatbread for the heads of state of the G20.
However, so tight is security that media reports claim Jamie Oliver has had his mobile seized by US security officials protecting Obama.
Oliver's offering will be in sharp contrast to last year's G8 meeting in Japan, where leaders tucked into an eight course meal of 18 different dishes while discussing how to ease global food shortages.
The summit has seen the most expensive police operation in British history swing into action at an estimated cost of £8m.
By Kerstin Kühn and Chris Druce
E-mail your comments to Kerstin Kühn here.
Looking for a new job? Find your next job here with Caterersearch.com jobs