Against a backdrop of an industrial relations system which has diminished union and workers’ power, class actions are again re-emerging as an alternative tool to challenge employers’ unlawful conduct. And in the current class actions landscape, the ability to run closed class proceedings on behalf of union members, or otherwise offer alternative fee arrangements to non-members in open class proceedings, is essential to trade unions’ willingness to embrace the representative proceeding regime, writes Slater & Gordon lawyer Alex Blennerhassett.