The Queen forced to wear a burkha and Buckingham Palace turned into a mosque - that was the vision of Britain under Sharia law proposed by a Muslim firebrand today. Preacher of hate Anjem Choudary even showed mocked-up photographs of the palace sporting a golden dome and Nelson's Column as a minaret. He was speaking ahead of a demonstration calling for Sharia law planned for Central London tomorrow, which it is feared could descend into violence. Police are working to avoid a clash between moderate Muslim groups and far-right mobs who have organised rival demonstrations.