He said in carrying out probes, the MACC could call up anyone for questioning.
"If we need to question him we will, if not, no," he told reporters after witnessing the "Corruption Free" pledge ceremony led by Johor Menteri Besar Datuk Seri Mohamed Khaled Nordin and nine state executive councillors at the Menteri Besar"s office, here, Thursday.
Shafie had on Wednesday stated that he was willing to be investigated over the matter and the RM3.3 billion Sabah Water Department graft and power abuse scandal.
"I am ready to cooperate with MACC," said Shafie, who has yet to be called to give his statement, contrary to what was reported in Daily Express.
On Wednesday, MACC Deputy Chief Commissioner (Operations) Datuk Azam Baki had said that 24 individuals would be called up to assist the probe.