Head of crime intelligence Lt-Gen Dumisani Khumalo is expected to resume presenting evidence at the Madlanga commission in Pretoria on Tuesday.
This comes after his turn on the hot seat was cut short after he fell ill only two days into his testimony at the commission last month.
During his time at the commission, his testimony centred around WhatsApp chats retrieved from an alleged drug cartel member, Vusimuzi Cat Matlala.