Olivier Duhamel, one of France's most prominent political commentators, has stepped down from his academic and media positions following accusations of incestuous sexual abuse of his stepson, in a book to be published on Thursday, reports RFI.
In her book La Familia Grande (The big family), lawyer Camille Kouchner accuses her step father Olivier Duhamel of sexually abusing her twin brother when he was 14 years old.
Duhamel has described the accusations as "personal attacks".
Extracts of the book have been published in Le Monde daily and L’Obs online.
"I was 14 years old and let it go ahead. I was 14, I knew and said nothing," Camille Kouchner, now 45, writes in the book.
She names her brother only as "Victor" in order to protect his privacy. But Le Monde said he had read the text twice and was happy for his sister to speak on his behalf.
"I confirm that what my sister has written concerning the actions of Olivier Duhamel towards me is correct," Victor told Le Monde.