When Crime Fighters Face Justice: South Africa's Tangled Law Enforcement Battle

Dumisani Khumalo, the head of Crime Intelligence, is at the centre of a fraud and corruption case that has thrown South Africa’s overlapping law enforcement agencies into sharp relief. His prosecution, pursued by the Investigating Directorate Against Corruption over an appointment within his own division, has raised pointed questions at the Madlanga Commission about which agency has the authority to do what, and whether some are operating beyond their intended reach.

The machinery of South African law enforcement runs through multiple institutions, each with distinct powers. Confusion about their separate mandates has become visible in recent weeks as the Commission has exposed how these bodies actually work in practice.

Crime prevention and investigation sit with the South African Police Service. SAPS carries the primary duty to prevent crime, investigate offences and ensure perpetrators face justice. What SAPS cannot do is prosecute. That power belongs entirely to the National Prosecuting Authority, led by Advocate Andy Mothibi. Police officers gather evidence and build cases, then hand their dockets to NPA prosecutors, who decide whether charges should proceed. The division of labour is deliberate: investigative legwork on one side, courtroom authority on the other.

Within the NPA sits the Investigating Directorate Against Corruption, known as IDAC. Established in 2019 with an original focus on State Capture crimes, IDAC’s mandate has since expanded significantly under Section 27 of the NPA Act, allowing it to pursue serious, high-profile or complex corruption, commercial and financial crime cases beyond State Capture alone. When President Cyril Ramaphosa amended the NPA Act in 2024, IDAC gained the ability to recruit permanent criminal investigators with full police powers, making it operationally independent from the broader SAPS structure. Advocate Andrea Johnson heads the unit. IDAC maintains that the Khumalo case falls squarely within its Section 27 investigative authority, though that position has drawn scrutiny at the Commission.

The Hawks occupy a different lane. Formally the Directorate for Priority Crime Investigation, they function as a specialised branch within SAPS itself, established in 2008 to replace the disbanded Scorpions. Their focus covers organised crime, economic crime, corruption and serious offences. Lieutenant-General Siphesihle Nkosi serves as Acting National Head following General Godfrey Lebeya’s retirement. Before IDAC gained its own investigative capacity, Hawks personnel provided investigative support to IDAC’s prosecutors, a relationship that has since shifted.

The Special Investigating Unit operates with a narrower but powerful mandate: investigating serious allegations of corruption, malpractice and maladministration within state institutions, and recovering funds lost to corruption. Unlike IDAC or the Hawks, the SIU cannot arrest individuals. Its investigative powers are nonetheless extensive. It can subpoena witnesses, access bank statements and cellphone records, seize evidence and interrogate witnesses under oath. The SIU’s reports frequently form the evidentiary foundation for prosecutions pursued by the NPA. Advocate Andy Mothibi led the SIU before moving to the NPA. One active example is the R360 million Medicare24 tender investigation, which now proceeds through the Pretoria Magistrates’ Court.

Meanwhile, the Independent Police Investigative Directorate fills a role often confused with IDAC’s. IPID investigates offences allegedly committed by members of SAPS and Metro Police Services. Its investigators lead these inquiries independently and impartially, then hand completed dockets to the NPA for prosecution decisions. IPID has received less attention at the Madlanga Commission than other agencies, though its investigation into a suspended Ekurhuleni Metro Police deputy chief has been examined.

The proliferation of these agencies reflects South Africa’s attempt to build specialised capacity within its justice system. The overlapping mandates, particularly between IDAC and other corruption-focused bodies, have created friction. Whether the Commission’s scrutiny will produce clearer institutional boundaries, or simply document the costs of their absence, remains the question hanging over the proceedings.