South Africa's Investigating Directorate Against Corruption (IDAC) has lost its head after Advocate Andrea Johnson resigned with immediate effect following weeks of scrutiny over her testimony before a judicial commission of inquiry. President Cyril Ramaphosa has accepted her resignation, raising fresh questions about the country's fight against corruption. Tsepiso Makwetla spoke to Retired Interpol Ambassador Andy Mashaile

<p>South Africa's Investigating Directorate Against Corruption (IDAC) has lost its head after Advocate Andrea Johnson resigned with immediate effect following weeks of scrutiny over her testimony before a judicial commission of inquiry. President Cyril Ramaphosa has accepted her resignation, raising fresh questions about the country's fight against corruption. Tsepiso Makwetla spoke to Retired Interpol Ambassador Andy Mashaile</p>