The Council of Trade Unions is urging the Government to rethink its 90-day employment trial legislation after a poll revealed most of those questioned had concerns about it.
In the UMR Research poll, 80% of respondents believe workers should be able to appeal if they think they have been unfairly dismissed, even if it is within the first 90 days of their employment.
Parliament's transport and industrial relations select committee is hearing submissions on the bill, which will extend the 90-day trial period to cover all employers.
The CTU commissioned the poll and its secretary Peter Conway says it is clear a majority of people do not support removing workers' right of appeal against unfair dismissal.
However, the Employers and Manufacturers' Association has accused the union of skewing the question to get the result it wanted.
Mr Conway says the CTU will be tabling the results of the poll at the select committee this week, as well as sending copies to government ministers.
The poll of 750 people was conducted over four days last week and has a margin of error of plus or minus 3.6%.