Musician Arno Carstens is expected back in the Cape Town Magistrate's Court in February next year on a charge of drunken driving.
His trial was postponed on Tuesday, after lengthy scientific testimony from a forensic toxicologist.
Expert witness Tim Lourens, the head of forensic toxicology at the University of Pretoria, said his independent analysis of blood alcohol results matched those of the State.
The blood sample was taken from Carstens when he was arrested nearly three years ago for allegedly driving under the influence of alcohol.