Record label Kalawa Jazmee musicians and staff paid a visit to the Doug Whitehead School in honour o.
Botha was facing seven charges of attempted murder and was then removed from the Pistorius case. Senior investigator, LT General Vinesh Moonoo had since then replaced Botha.
He and two other officers were arrested a year ago after shooting at a minibus taxi carrying passengers.
Police spokesperson Neville Malila said, “We can confirm that he tendered in his resignation yesterday [Wednesday] but the reasons are confidential.”