If Durban businessman Schabir Shaik charged Deputy President Jacob Zuma interest by the day, he would have to use most of his pension to repay his debts *1, a forensic auditor testifying for the state said on Monday.

"Not even banks charge interest like that," Shaik's counsel, Francois van Zyl, said in one of the final skirmishes concluding the marathon evidence of Johan van der Walt in the Durban High Court.

The state on Monday got another chance to question their witness, who had been under cross-examination for more than a week.

Advocate Billy Downer focused on the "missing documents" of Shaik's version.

'Somebody must pay me for doing my job'

Shaik has pleaded not guilty to two charges of corruption and one of fraud. The corruption charges relate to financial dealings that defined part of his relationship with Zuma.

It is also alleged that Shaik was involved in soliciting a bribe of R1-million from French arms company Thomson on behalf of Zuma.

With acknowledgements to Estelle Ellis and the Cape Argus.

*1 Even if the stipulated interest (prime rate plus 2%) was compounded yearly, he would have to use most of his pension to repay his debts