"Over the course of the last year or so they have been demanding through their questions to me on every interaction, every engagement, every statement I have made in relation to Kim Dotcom.
"Now it turns out that they have had numerous meetings at the Dotcom mansion, they're refusing to actually answer what they talked about, what was involved."
He added: "What was the basis of those questions and who were they asking for?"
Dr Norman ruled out acting for Mr Dotcom in Parliament.
He said he made two visits to Mr Dotcom's house to warn him against setting up a party which could steal Green votes.
They discussed each party's policy but did not mention Mr Dotcom's extradition hearing.
Mr Key questioned whether Greens and Mr Dotcom had arranged a deal over the internet entrepreneur's extradition order if Greens were elected to government.
"Dr Norman has said that he will ride over the judicial process... What he did get in return for giving this assurance to Mr Dotcom?"
Mr Dotcom said yesterday that he would pull his party out of the election race if it became apparent that it was not polling 5 per cent.
The Greens co-leader would consider blocking an extradition because the Government acted unlawfully in raiding his home.
Dr Norman emphasized that the extradition process had two stages - judicial and political - and that it was a Justice Minister's role to consider every extradition case.
"Any Government, whatever their flavour, doesn't have a choice about that, they have to answer [whether] they support extradition or not."
He could not recall whether he or Mr Dotcom initiated the meeting but denied that he was having a "brain fade".
Greens have previously criticised Act leader John Banks and Prime Minister John Key of "brain fades" in relation to Mr Dotcom and spying laws.
