The formal Treason Trial began in Pretoria in August 1958, with the defendants successfully applying to have the three judges—all linked to the governing National Party—replaced.
Pengadilan Pengkhianatan resmi dimulai di Pretoria bulan Agustus 1958 dan para terdakwa berhasil meminta ketiga hakim—semuanya terlibat dengan Partai Nasional yang berkuasa—diganti.