At a New Zealand Parole Board hearing last week, a letter by the unnamed supporter - who is Swann's sponsor on parole - was supplied to the panel convenor.
That letter "contains a threat to take and fund judicial review proceedings if Mr Swann does not receive an outcome favourable to him'', the parole board decision noted.
"Without going into the contents of the letter, significant aspects of which are erroneous, it is the view of this panel that to proceed with a decision in relation to Mr Swann may well be seen to be responding to a threat,'' the board noted.
The board considered that there was no option but to defer Swann's parole hearing until the next meeting at the undisclosed prison.
Swann was sentenced in the High Court, at Dunedin, in March 2009, to nine and a-half years' jail for defrauding the Otago District Health Board of $16,902,000.
