Another week, another unit, another resignation – this time Mary-Anne Whittles. We should be worried, says former NPA boss.

Head of the Special Investigating Unit Vas Soni has resigned in a surprise move, citing personal reasons for his decision.

The new SIU head has told Parliament’s portfolio committee on justice that the unit would "reboot" itself in line with the amendment to the SIU Act.

A campaign to discredit two advocates who are evidence leaders in an inquiry into the arms deal has led to fresh concerns about political meddling.