The file was passed from a senior sergeant at Mt Wellington Police Station to Detective Inspector Mark Benefield, who investigated the Carmen Thomas murder.
Benefield recommended the file be sent for further review, and area commander Chief Inspector John Palmer was handed the file.
In his report Palmer wrote there was no firm evidence of criminal activity, and the dispute should be left in the hands of the High Court divorce action.
"While I do not wish to in any way prejudge the issue, nonetheless I am left with the uneasy observation that [the ex-wife] ... is seeking to involve police in the dispute for reasons which are relatively clear to me."
Despite having outstanding warrants for his arrest, the "political consultant", who uses several aliases, remains at large and has never been located by police.
In May the ex-wife was awarded $1800 a week while the divorce battle continues through the High Court.