In 1989, Buckingham Palace was rocked by allegations by royal servant, George Smith, who claimed he had been raped by a senior staff member.
He also sensationally claimed that the staff member had been in a relationship with Prince Charles, who covered-up the rape.
Diana was so shocked by these revelations that she took it upon herself to interview Smith and record what he said. Smith repeated his claims that he had been raped and also stated that homosexuality was rife at the palace.
The recordings were at the heart of the collapsed Paul Burrell butler trial and to this day have never been made public. It’s highly likely that George Smith also confided in Diana about child-abuse linked to the Royals and Diana began to keep a dossier of what she knew.