Vanunu spent 18 years in prison, including more than 11 in solitary confinement, though no such restriction is mentioned in Israel's penal code, nor imposed by his verdict. Released from prison in 2004, he was further subjected to a broad array of restrictions on his speech and his movement, and arrested several times for violations of his parole terms, giving interviews to foreign journalists and attempting to leave Israel. He claims having suffered "cruel and barbaric treatment" at the hands of prison authorities, and suggests that these would have been different if he had not converted to Christianity.