Labor says an inquiry on the North-West coronavirus outbreak lacks adequate protections for public servants to give fearless evidence.
But Premier Peter Gutwein has attempted to dispel fears health workers may have and has said any person can make a submission without fear of repercussion.
Braddon Labor MHA Anita Dow on Tuesday said the inquiry's draft terms of reference did not provide enough protections for health workers to speak freely about the outbreak.
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This is despite a provision for confidentiality.
"For this inquiry to be meaningful, and deliver findings that provide genuine insights, people need to feel safe to provide evidence that clearly sets out what happened in the lead up to, and during, the North-West outbreak," Ms Dow said.
"In the absence of explicit protections, public servants will be understandably concerned about reprisals if they disclose information that in many cases could be traced back to them."
Mr Gutwein accused Labor of attempting to scare workers into not submitting to the review, highlighting confidentiality provisions where deemed appropriate in the terms of reference.
"The Tasmanian Government has put in place arrangements to enable any individual making a submission to be able to do so without fear of repercussion," he said.
Australian Medical Association state president Helen McArdle said it was essential staff could be honest and speak freely for the best outcome to be reached from the inquiry.
"We believe that the inquiry intent should not be to apportion blame, but rather to enable the Tasmanian community and government to learn from the experience to better prepare for future outbreaks," she said.
"We see this as critical for the staff of both North West Regional Hospital and the North West Private Hospital to be able to participate in the inquiry on a confidential basis both in written submissions and in person."