Two dossiers have been compiled by people in Madonsela's organisation and sent to parliament, the Sunday Times revealed yesterday.

The documents allege, among other things, that she has been dismissive of criticism, has not followed prescribed procedures and has a "Hollywood" approach to investigations.

Shai revealed at the weekend that she had been involved in the communication with parliament, said Madonsela yesterday.

Madonsela's statement read: "The public protector learnt officially from the deputy public protector with much surprise that the [she] had been one of those sending letters to parliament."

Madonsela said this was in conflict with an undertaking made to parliament of which Shai was aware.

Madonsela has been lambasted for not being impartial by several prominent politicians, including Minister of Higher Education Blade Nzimande and ANC chief whip Mathole Motshekga.

At the heart of the allegations is Madonsela's appearance at a DA rally earlier this year.

ANC spokesman Keith Khoza yesterday said nothing about parliament's investigation but repeated that "it is inappropriate for the public protector to be openly associated with a political party".

Madonsela again yesterday denied that her impartiality had been compromised.

She set out a 13-point defence refuting all the allegations against her.

In her statement she welcomed parliament's decision to assign its justice portfolio committee to look into the allegations against her.

A comprehensive report, with supporting documents, including memoranda, had been submitted to parliament in July, she said.

A few months ago Madonsela got a tip-off from someone referring to herself as a "whistle-blower".

The "whistle-blower" claimed that someone senior in Madonsela's office was putting pressure on the whistle-blower to petition parliament to have the public protector impeached.

Madonsela's statement said the "whistle-blower" alleged that this person had given her and others, including journalists, a dossier, and was giving her further documents and information each day and was putting pressure on her to act.