Zimbabwe's parliamentary committee on mines on Wednesday is expected to press former President Robert Mugabe to give evidence about the disappearance of diamond revenues amounting to $15 billion during his rule.
The mines committee, led by independent legislator Temba Mliswa, said it would conduct the hearing at Mugabe's Harare mansion, commonly known as the Blue Roof.
Mliswa said the move follows previous failed attempts to summon the former president to parliament to discuss the missing diamond revenues.
Neither Mugabe nor presidential spokesman George Charamba was available for comment.
Nongovernmental organizations and political observers say Mugabe is expected to blame Zimbabwe's military for plundering diamonds from fields in Chiyadzwa, Manicaland province.
Farayi Maguwu, executive director at the Center for Natural Resource Governance and a doctoral student at the University of Kwazulu Natal Center for Civil Society, told VOA Zimbabwe that Mugabe was also expected to attack President Emmerson Mnangagwa; his deputy, retired General Constantino Chiwenga; and others who are now in charge.