Many unions have arrangements with private law firms to provide free services to union members. These services are mainly for workers compensation or other matters arising out of the person's employment, but in some cases free legal advice is also given.
There is a Young Workers Legal Service supported by South Australian unions. It is for workers who are under 30 with employment related issues. Telephone 8279 2233 or make an appointment online at www.ywls.org.au .