Police arrest 67 people amid biggest security operation in UK history

Around 15,000 officers and 1,500 soldiers protected huge crowds, royalty, world leaders and other dignitaries in the first major test for Scotland Yard’s new Commissioner Sir Mark Rowley.The scale of the Met’s operation surpassed that for the Platinum Jubilee weekend and the London 2012 Olympics.An estimated 250,000 people paid their respects in person during the Queen’s Lying-in-State at Westminster Hall.