Ex-BBC chief steps down from high-profile job over Princess Diana probe

A former BBC chief who was criticised for his "woefully ineffective" probe into Martin Bashir's deception in securing a bombshell interview with Princess Diana on Saturday resigned as chair of Britain's National Gallery.

Journalist Bashir tricked Diana into giving a 1995 BBC television interview in which she lifted the lid on her troubled marriage to Prince Charles, an independent investigation concluded on Thursday.

Tony Hall, who had led an earlier investigation into the interview and was later named head of the BBC, said he had "today resigned as Chair of the National Gallery.

"As I said two days ago, I am very sorry for the events of 25 years ago and I believe leadership means taking responsibility," he said in a statement released by the world-renowned London gallery.

"I have always had a strong sense of public service and it is clear my continuing in the role would be a distraction to an institution I care deeply about".

Retired senior judge John Dyson said Bashir commissioned faked bank statements that falsely suggested some of Diana's closest aides were being paid by the security services to keep tabs on her.

Bashir then showed them to Diana's brother Charles Spencer, in a successful bid to convince him to arrange a meeting between himself and Diana and earn her trust.

Questions have long been asked about how Bashir convinced Diana to talk on the BBC's flagship "Panorama" programme in November 1995, which was watched by a record 22.8 million people and won a string of television awards.

In it, she famously said "there were three people" in her marriage -- her, Charles and his long-time mistress and now wife, Camilla Parker-Bowles -- and also admitted adultery.

Bashir, now 58, was little-known at the time of the interview but went on to have a high-profile career on US television networks, and interviewed stars such as Michael Jackson.

He returned to work for the corporation as religion editor until he stepped down last week, citing ill health, just hours before Dyson's report was submitted to BBC bosses.

On Sunday he apologised to Diana's sons Prince William and Prince Harry but said claims linking his actions to her death were "unreasonable".

A 1996 internal inquiry by Hall cleared Bashir of wrong-doing, but Dyson called that probe "flawed and woefully ineffective".

In particular, it did not ask Diana's brother for his version of events, Dyson said, lambasting it for failing to scrutinise Bashir's actions properly.

"If they had been able to test Mr Bashir's account by asking him to comment on Earl Spencer's detailed account, it is very unlikely that they would have believed him and concluded that he was an 'honest and an honourable man'," he wrote.

Hall admitted that the probe "fell well short of what was required", and said he was "wrong to give Martin Bashir the benefit of the doubt".

Prince William said the interview had made "a major contribution" to the demise of his parents' relationship, while the BBC's "woeful incompetence" in uncovering the truth had "contributed significantly to her fear, paranoia and isolation" in her final years.

Diana died in a high-speed car crash while being chased by paparazzi photographers in 1997.

Hall took charge of the BBC in 2013, and stepped down last year.

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