Prince William has praised an impending investigation into a notorious 1995 interview by the BBC with Princess Diana in a highly unusual public statement from the royal.
An independent enquiry will look at whether journalist Martin Bashir secured the unprecedented access to Diana for the current affairs program Panorama through unethical means.
William called the probe a "step in the right direction", adding: "It should help establish the truth behind the actions that led to the Panorama interview and subsequent decisions taken by those in the BBC at the time."
During the sensational interview, Diana candidly spoke about self-harm, her battle with bulimia, several incidents of infidelity within her marriage - including her own affair with army captain James Hewitt - and the monarchy's attitude towards her as a "non-starter".
Diana's revelations that "there were three of us" in her marriage to Prince Charles, referring to Charles' relationship with Camilla Parker-Bowles, was one of many bombshells that saw the interview go down in history.
At the time, the controversial interview was accused of violating the trust between the monarchy and the BBC, ignoring established procedures for a broadcast of a royal nature.
One disgruntled member of the public called into the BBC programme Points of View to call the television special "tantamount to treason".
Now, 25 years after the interview, questions remain about the methods undertaken by Bashir to get the scoop, including allegations that the journalist used counterfeit bank statements to persuade Diana to take part.
Along with the investigation, Diana's younger brother Earl Spencer has requested a posthumous apology for his late sister - who died less than two years after the programme aired - and a donation to charities set up in her memory.
