Nelson Mandela, the African National Congress leader serving a life prison term, is expected to earn a law degree this year through a correspondence course, university officials say. Mandela, 69, still has a few secondary courses to complete before receiving the degree, law professor Marinus Wiechers of the University of South Africa said. Receipt of the law degree would give Mandela the academic qualifications to be an advocate, but legal experts said this status cannot be conferred on someone in prison. Mandela was sentenced to life in prison terms in 1964 for sabotage and conspiracy to topple the white-minority government.