The MoS first alerted Buckingham Palace to the bombshell material in 2019 - long before detectives opened their investigation into the former prince on suspicion of misconduct in public office.

Buckingham Palace staff were 'handed tens of thousands' of emails about Andrew's conduct in his controversial trade envoy role six years ago, according to new claims

Messages appearing to show Mountbatten-Windsor shared confidential information were handed to Buckingham Palace in 2020, says BBC