He said Renes had been punished by the process and submitted conviction, and discharge was suitable.
Judge de Ridder said the system was "trust based" and was totally reliant on the accuracy and truth provided by those submitting information into the computer system.
He said at the time of the offending there was not much in the way of checking but understood that had changed since.
"This was deliberate and planned offending. Those who don't play by the rules can expect the courts to denunciate and and deter such crimes," Judge de Ridder said.
He said Renes had never appeared before the courts apart from this lapse of judgement.
He sentenced Renes to 200 hours community work.
Judge de Ridder said it was difficult to calculate the amount of money involved and he would only be guessing and amount so did not make an order for reparation. He said ACC would have to file an application with the court.
During the trial there was evidence from witnesses working for ACC and physiotherapists and a large number of documents were presented as exhibits.
At the conclusion of the Crown case, Renes gave evidence and called one other witness for her case.
Renes blamed poor computer systems used to file information that were designed "on the fly" which became more difficult to follow over time.
She said treatments were provided and that there was an entitlement to be paid for that work.
The Crown case at trial was that Renes' actions were a deliberate course of conduct aimed at dishonestly obtaining money from ACC.
Among the list of people who provided treatment who were subsequently paid for by ACC, included physiotherapist assistants whose services were ineligible for payment through the government agency as they were unqualified, the Crown said.
