Acting Police Commissioner General Khomotso Phahlane is expected to make a warning statement in relation to a charge of defeating the ends of justice after being summoned by the Independent Police Investigative Directorate (Ipid).
Phahlane's office says it has not been told about the investigation and allegations against its Commissioner.
The original docket against the acting police commissioner was opened by forensic investigator Paul O’Sullivan in January.
O’Sullivan says he has agreed with Ipid to not discuss merits of the case publicly before it comes before the court.
Eyewitness News reports that it is alleged that Phahlane interfered with witnesses during a probe into the construction of his luxury house in an upmarket estate north of Pretoria.
I opened the case in January this year. There was no investigation at all. I complained to Ipid and wrote several emails but they didn't bother replying.— Paul O’Sullivan, forensic investigator
In March this year I wrote to Phahlane and other senior police officials and I told them that if they are not prepared to deal with this, I will fly to London and open a press conference and tell the whole world that police in South Africa are infiltrated by criminals.— Paul O’Sullivan, forensic investigator
Two weeks later they hauled me off the plane when I was on my way to London for that very same conference. With my two small children, they dragged me and punished me for exposing them.— Paul O’Sullivan, forensic investigator
O’Sullivan says he received an SMS on Sunday afternoon addressed to the senior investigator threatening both the lives of the investigator and O'Sullivan.
Acting Police Commissioner General Khomotso Phahlane refused right of reply on the Xolani Gwala Afternoon Drive and Phahlane's office has refused to comment on the matter.
Listen to the audio below to hear more about the case and threats...