From R65,000 in cash to claims of a wrongful arrest, here are the biggest revelations from Tumelo Nku's testimony.

Businessman and police informant Tumelo Nku spent two days before the Madlanga Commission of Inquiry defending his role in the 2021 Aeroton cocaine bust, fielding tough questions over R65,000 in cash, his relationship with police and the circumstances surrounding his own arrest.

Nku, who returns to the commission on Monday after his evidence was postponed to allow for a supplementary statement, insists he acted as an intelligence source who helped expose one of South Africa's biggest cocaine seizures.

Here are the biggest takeaways from his testimony.

One of the commission's sharpest exchanges centred on the R65,000 in cash found in Nku's possession during the July 2021 operation.