When the first civilian police force in the World - the London Metropolitan police - marched out from New Scotland Yard in 1829, their uniform was based on the civilian dress of the day. Totally different working conditions existed in those early days and it was clearly laid down in Instructions, that the constable was to wear his uniform at all times and he was, therefore, on duty at all times. The difference between parading on duty and being on 'off' duty , was to be shown by an arm band worn