Doubts over the PSA's arguments on work from home policies. 

The union's heading to the Employment Relations Authority after mediation didn't resolve differences with the Government on the issue. 

The PSA claims a move to get more workers in the office will have a big impact on women. 

Employment Law specialist Jennifer Mills told Mike Hosking she doubts the authority will side with the PSA. 

She doesn't believe there's an argument that any changes are indirect discrimination. 

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