The Labour Party is refusing to release details of the donations its three leadership contestants received in the leadership contest last year and can escape the usual disclosure rules for donations the contestants subsequently passed on to the party.
The rules of the contest last September required the contestants to disclose to the party hierarchy any donations of more than $1500.
David Cunliffe, Grant Robertson and Shane Jones were also required to give any unspent donations to the party after the contest.
There was a spending cap of $30,000 for each contestant.
Mr Robertson was the only one who initially said he would be happy for the return to be released provided his two colleagues did the same and only donations of more than $1500 were disclosed. He later declined to do so after discussing it with Labour's general secretary Tim Barnett. A spokesman for Mr Cunliffe referred the issue to Mr Barnett, who said the party would not release the returns even with their consent because all three had originally agreed to confidentiality.