South Africa’s main opposition party is accusing President Jacob Zuma of “flagrant abuse” of public money, over multi-million euro upgrades to his home.
The Democratic Alliance has filed eight charges of corruption against him.
“If everyone is equal under the law, then everyone must be treated the same,” said Mmusi Maimane, a Democratic Alliance regional leader.
“I believe that President Zuma has benefited personally and his architect Makhanya benefited throigh this result and therefore a criminal process must take place.”
It comes after South Africa’s corruption watchdog said Zuma had benefited “unduly” from the state-funded upgrades – as it reported the findings of two years worth of investigations.
Additions to Zuma’s home include a swimming pool, cattle enclosure and an amphitheatre.
The sprawling compound has become a growing headache for Zuma and his ruling ANC party six weeks before elections.
But the party, which has ruled since the end of apartheid in 1994, is still expected to win the May poll.
The Democratic Alliance says it is also planning to start impeachment proceedings against Zuma in parliament.