Crime intelligence boss Dumisani Khumalo to take the hot seat at the Ad Hoc Committee this week

Parliament's Ad Hoc Committee investigating allegations of police corruption resumes its hearings this week, with more high-profile witnesses like the head of crime intelligence, Dumisani Khumalo, expected to give evidence.

The committee will resume its business from Wednesday after it concluded the last leg of its hearings in November last year, before the Christmas and end-of-year recess.

The resumption of hearings follows the evidence of several witnesses, including KZN Police Commissioner Nhlanhla Mkhwanazi, former minister Bheki Cele, and attempted murder accused businessman Vusimuzi 'cat' Matlala.

Matlala was the last witness to give evidence, where he detailed how he allegedly paid former minister Bheki Cele R500,000 and how Cele interfered in police matters on his behalf.

The committee also heard from other witnesses, like minister on special leave, Senzo Mchunu, who defended his irregular decision to disband the political killings task team.

The committee will now sift through more evidence from witnesses, including former commissioner Khomotso Phahlane gives oral evidence on Wednesday, following Khumalo on Thursday.

"Committee work will continue also this week, including the hearings by the Ad Hoc Committee investigating allegations by Mkhwanazi, said Parliament Spokesperson Moloto Mothapo.

Meanwhile, forensic investigator Paul O'Sullivan has refused to appear before the committee in person, saying this will make him a target and that he fears for his personal safety.

The committee is expected to conclude in February, with Mkhwanazi expected to be the last witness.