The Fair Work Act deems that lawyers and paid agents are a pest to the Fair Work Commission (despite the views of the overwhelming majority of the members of the Commission) and thus provides that they may not represent clients in proceedings in the Commission except upon certain stipulated grounds. This was a concession made by Minster Gillard as she then was in 2009 when preparing the Fair Work Act to take over from the Howard government’s WorkChoices system. The trade union movement and the various federations of employers wanted lawyers excluded from the system so that they had something to sell when recruiting their members.
Accordingly there are often conditions imposed for a party to be professionally represented. Here is an example.
“The following extract of the decision of the Commission in CEPU v UGL Resources Pty Ltd  FWA 2966 is also relevant:
“…Before permission to be represented can be granted, a person must be unable to represent himself, herself or itself effectively, and following the plain language definitions of the Macquarie Dictionary (Revised Third Edition) and the Australian Concise Oxford Dictionary (Third Edition), this means the person must be unable to represent himself, herself or itself in a manner that creates a “striking impression”, or which has an “impressive” effect or which is “powerful in effect”. ”
Caruana v Shace Toop Trading Trust T/A Toop & Toop Real Estate (2018) FWC 2231 delivered 19 April 2018 per Anderson DP