United Democratic Movement (UDM) is seeking a legal opinion with a view to challenge the ANC's move to disband the elite Scorpions.
Following the NEC meeting at the weekend, party leader Bantu Holomisa said yesterday that leadership discussed the state of the nation, as well as UDM's review of its strategic plan developed last September.
He said the UDM noted that the ANC agenda of transformation had been hijacked by the SACP.
"The campaigns and obsessions of the SACP now dominate ANC thinking, such as the long standing SACP hatred of the Scorpions and judiciary," Holomisa said.
He accused the SACP and its "hangers-on" of having used Jacob Zuma's popularity to gain control of the ANC.
"Signs are already there that they will dump Zuma now that they have achieved their goal.
"In the process Mbeki and his executive are being blackmailed to implement this faction's resolutions or face the prospect of being 'recalled' by the ANC before their term of office is complete," Holomisa said.
He said the UDM felt strongly that by disbanding the Scorpions, the ANC was sending a wrong signal.
"It seems when those in authority face investigation they will simply disband the investigating unit," he said.
City Press quoted sources as saying that Zuma was angry with some NEC members for "working behind his back" and wanting Cabinet posts should he be jailed after his corruption trial.
The newspaper said that leaders like Matthew Phosa and Kgalema Motlanthe were positioning themselves for the country's deputy president and president posts respectively should Zuma go to jail in the 2009 elections.
Zuma is said to have told the NEC that this had to stop or he would take action against those implicated.
The newspaper said the ANC president had to later apologise after the intervention of senior NEC members like Zola Skweyiya during the January 7 NEC meeting.