Boy Mamabolo, a former friend of axed ANC Youth League leader Julius Malema, has been arrested for fraud, the Hawks said on Wednesday.
"Yes, he was arrested just now [Wednesday]," said Hawks spokesperson Captain Paul Ramaloko.
The fraud charge relates to Mamabolo's chairmanship of the Limpopo Geographical Names Committee.
Mamabolo, a loyal supporter of President Jacob Zuma, is due to appear in the Polokwane Magistrate's Court on Thursday.
There were no further details.
Mamabolo had recently been embroiled in a court battle with Malema after alllegedly sending a threatening text message to Malema saying he would exhume his mother Mahlodi's body and take her remains to Malema's grandmother's home in Seshego.
This was apparently in retaliation to Malema allegedly sending his allies to sleep with Mamabolo's girlfriend.
But the crimen injuria case was provisionally struck off the court roll last week.
This was because the origin of the offending SMS first had to be confirmed, said Limpopo police spokesperson Brigadier Hangwani Mulaudzi at the time.
He said it was crucial to determine whether Mamabolo had sent the message. Once the results were available, the matter would be sent back to court.
The Star newspaper reported that the SMS read: "This time I want to show you that I am more brutal and exhume Mahlodi from the grave and lay her in front of (your grandmother's house). You have done many bad things to me."
The Mail&Guardian reported recently that Mamabolo's spat with Malema had a history. In a previous publicity stunt, Mamabolo allegedly burnt a mock coffin to celebrate Malema's expulsion from the ANC.