Scenes of chaos unfolded in Edinburgh last night as violent crowds threw fireworks and bricks at buses and police in sickening scenes. Officers came under attack in the Scottish capital on the night of Halloween , leading to calls for fireworks to be banned. The latest incidents happened at about 10pm on Thursday, with dramatic images showing a face-off with police and the mob, including about 100 young people. Police Scotland said a number of people had targeted its vehicles, as well as public