Controversial property mogul Roux Shabangu has refused to testify before the board of inquiry investigating misconduct allegations against suspended police commissioner Bheki Cele.
Board chairperson, judge Jake Moloi, said that they had invited Shabangu to give evidence but that he had flatly refused.
The inquiry resumed on Friday after a two week break, with Public Works official, Mokgaetjie Tlolane, taking the stand.
The inquiry is trying to establish whether Cele acted corruptly, dishonestly or with an undeclared conflict of interest in relation to two police lease deals signed with Shabangu.
It will also assess his fitness to hold office.