The campaign by the independent Senator follows a win against the Commonwealth by former public servant Wayne Meredith, one of five people with cases being heard in the ACT Supreme Court.

Senator Xenophon praised the judgement, handed down by Justice Richard Refshauge on Wednesday.

“The Supreme Court’s decision vindicates the concerns of hundreds of Commonwealth employees, particularly those in the ABC, that thought they were harshly dealt with in terms of superannuation,” he said.

Senator Xenophon said the next step would be to set up an independent tribunal to fast track the claims, rather than engage in costly legal proceedings.

The ACT Branch President of the Media, Entertainment and Arts Alliance, Don Cumming, said the judgement had implications for a large number of former ABC News journalists as well as other former Commonwealth staff.

Mr Cumming, a former ABC Canberra News Editor, said that for many years ABC News journalists were incorrectly classified as ‘temporary’ not ‘permanent’ so were wrongly excluded from Commonwealth superannuation.

Richard Faulks from Snedden, Hall and Gallop said the decision meant the court had found that employees in three different Commonwealth workplaces throughout the 1960s, '70s and '80s were misled as to their eligibility to join the scheme.

Mr Faulks said the Commonwealth could be facing compensation costs in the millions of dollars.

“We’ve already had contact from hundreds of people and we’re led to believe there’s potentially thousands,” he said.

“We’re looking at millions of dollars overall, by the time every claim is looked at.”