Thorough investigations into cases of corruption are critical in the successful prosecution of corruption and other white colour crimes.

Allegations of corruption remain a challenge to achieve convictions due to its complexity and lack of knowledge on the part of investigators and the justice delivery system.

In his birthday message to the nation, President Robert Mugabe said incriminating evidence is key for successful prosecution of suspects, adding those found wanting will be dealt with.

The establishment of the anti corruption commission came as sign of political will to combat corruption in Zimbabwe.

Anti corruption activist Dumisani Mthombeni says there is need to engage skilled people who can deal with complicated corruption cases if the culprits are to be convicted.

However, lack of proper investigations in some cases coupled with corruption has resulted in most cases being thrown out for lack of evidence among other reasons.