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The lawyer who brokered the sale of private Princess Diana footage has defended a controversial Channel 4 documentary featuring the tapes.

Marcus Rutherford represents Peter Settelen, Princess Diana's former voice coach who recorded the tapes, before selling the rights.

He told Stephen Nolan on ÃÛÑ¿´«Ã½ 5 live: "There is a huge public interest in this material. It's a very controversial talking point, and that gives it the public interest. You're talking about Diana, who felt that she was seriously mistreated during the course of her marriage. She's entitled to make her case."

He added that "people who want to watch the film need to take a view for themselves" when challenged that Princess Diana was talking privately.

This clip is originally from Stephen Nolan on Sunday 30 July 2017.