Newsdesk notes for Friday November 2

The Metropolitan police commissioner, Sir Ian Blair, faces calls for his resignation after an Old Bailey judge found his force guilty of "catastrophic" police failings in the shooting of Jean Charles De Menezes. One of Sir Ian's critics is Tory London Assembly member Richard Barnes, also a member of the Metropolitan Police Authority. But our crime correspondent Vikram Dodd says attacks on Sir Ian may be politically motivated.