Mark Etheridge, spokesman for the South African Sports Confederation and Olympic Committee, says the hearings began Friday and would go into next week.
The committee is looking into the role of Athletics South Africa in the gender testing of Semenya. ASA president Leonard Chuene admitted that he lied about knowledge of gender tests involving the 18-year-old athlete.
Semenya won the 800 meters at the world championships in August in Berlin. Before the final, the world governing body for track and field said it had ordered gender tests on the runner.