The letters were contained in the NPA's court submissions in response to an application brought by civil society groups to have Abrahams suspended.
The Democratic Alliance (DA) has written to the Minister of Police Nathi Nhleko requesting that he provisionally suspends Ntlemeza.
The DA says it’s become clear that both the NPA and the Hawks have been politically compromised.
The SA Communist Party (SACP) has also previously called for a probe into Ntlemeza’s fitness to hold office, because of his pursuit of Gordhan.