A judge said he would be "staggered" if the NRL could not quickly produce key documents relating to salary cap penalties imposed on the Melbourne Storm.

The Storm are seeking a Victorian Supreme Court injunction to restrain the NRL from imposing salary cap breach penalties, which included stripping the club of their 2007 and 2009 premiership and preventing them earning competition points this season.

They argue the penalties announced on April 21 are in breach of NRL rules and the decision-making process in imposing them was not fair.

The case returned to court on Wednesday as the parties prepare for a likely August hearing.

NRL barrister Michael Colbran told the court he needed time to locate documents requested by the Storm about the decision-making process surrounding the penalties.

Justice Tony Pagone said most of the documents should be at "the fingertips" of the NRL.

He said he would be "staggered" given the recent investigation, if the documents were not readily available.

Storm barrister Pat Zappia said the club wanted access to documents detailing the timing of the press conference to announce the penalties.

He said the timing could represent evidence of pre-judgment of the penalty.

Justice Pagone urged the parties to quickly prepare their cases or risk missing the August hearing date.

"There are people knocking on the door who want this date," he said.

An August hearing would likely see the matter resolved before the NRL finals series which begins on September 10.

The matter will return to court for a further case conference on June 17.

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