Martin Flint, father of Dianne Muller as well as the financial director of her events management company, would testify on Friday in the High Court in Johannesburg.
He allegedly dealt with an account for the company Spring Lights, from which payments from slain mining magnate Brett Kebble and his associate John Stratton were distributed to convicted drug trafficker and Kebble murder accused Glenn Agliotti.
Agliotti previously testified he asked Kebble and Stratton for a US$1 million "consultancy fee" for access to Selebi.
On Thursday Muller said her father had problems with his memories, after defence lawyer Jaap Cilliers raised questions on a statement her father Martin Flint made where said he had "no suspicion" of any payments being made to Selebi.
Cilliers read out an extract of one of Flint's statement: "I never thought such a high-ranking person would compromise himself... If Agliotti had said he was paying Selebi I would certainly have remembered."
Muller, replied: "My father is in his 70s. His memory is not that great and he does think the world is a wonderful place. He will not see wrong in anybody and he will give anyone the benefit of the doubt."
She said her father was not present in the office the day she prepared a cash payment of R110,000 for Selebi in a bank bag, with which she later saw him walk out of the office.
On Thursday court adjourned early in order to allow prosecutor Gerrie Nel further time to consult with Flint.
Lawyers said his testimony should not take more than a day.
Selebi is facing a charge of corruption and another of defeating the ends of justice in connection with at least R1.2 million he allegedly received from Agliotti and others in return for favours.
Euclid