Among material presented was a DVD copy of The Wolf of Wall Street. Retired accountant McCready claimed the film showcased the "lawless lifestyle of currency traders such as John Key where there are no rules, no respect for regulations and deals are made over the phone".
The film wasn't good enough to win an Oscar — and Judge Collins took a similar view to those who adjudicated this year's Academy Awards.
"Annexing a copy of the movie Wolf of Wall Street falls considerably short of the sort of evidence required to subject any New Zealander to the process of the criminal justice system," Judge Collins stated in his decision.
The judge said no evidence was presented to support claims of a "criminal conspiracy" between Benefield, Key and Banks.
Although Judge Collins gave Key the all-clear, he said there was "evidence", if only in hearsay form, that Benefield recommended to superiors Banks not be prosecuted. "However, there is no evidence to support the proposition this was improperly motivated as opposed to being an error of judgement," he added.
Police Assistant Commissioner Malcolm Burgess said he wasn't surprised by the outcome. "As I said at the time this matter arose, I have faith in the integrity of the investigation carried out and the staff involved in it and no events or developments since lead me to change that view."
John Banks did not return calls and the Prime Minister also declined to comment on Judge Collins' decision.