King Charles has given his permission for staff to hand over sensitive documents and files relating to his brother's work as the UK's trade envoy, it is understood. The 77-year-old head of state, gave the go ahead for courtiers to give police access to the information as they continue to probe Mountbatten-Windsor on suspicion of misconduct in public office. Sources say the move supports his statement regarding his brother's arrest last week in which he said "We have said we will cooperate fully