The state government has received a report that an earlier leaked draft version suggested Tasmanian Prison Service staff were reliant on working overtime.
The draft report also found in 2019 that the prison's services 489 staff had 226 open worker compensation claims, of which 209 had been accepted.
The number of open claims represented 46 per cent of staff within the service, the report said.
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Thirty per cent of the claims were related to muscular stress and 28 per cent were psychological in nature.
The report, by Custodial Inspector Richard Connock, stated the service had paid out $18.4 million in overtime in 2018-19.
It said there was no strategy for reducing sickness and absences and this should be addressed.
"Of concern, the system allows correctional officers to become financially reliant on overtime," the report said.
Mr Connock said many TPS staff who were interviewed over the investigation advised they had personally experienced workplace bullying over a 12-month period.
"Of some concern, much of this bullying was reported as being perpetrated by a senior manager or immediate supervisor," he said.
In Parliament on Thursday, Labor's justice spokeswoman Ella Haddad demanded Attorney-General Elise Archer release the final report.
Ms Archer confirmed her office had received the report, but did not indicate when it would be released.
She said in relation to staff issues, 42 new correctional officers would start a recruitment course this year.
Twenty-four recruits commences a 10-week training course earlier this week and would be ready for work at the end of the year.
Another 18 recruits are expected to start their training course by the end of the year.
Four of the total number of recruits have arrived from interstate.
Ms Haddad said recruitment numbers were not keeping pace with the number of staff leaving the service.
"This report paints a really damning picture of a system that is under pressure at every point," she said.
"The prison population is on the rise and staff are not being given the support they need."
The new report from Mr Connock follows another he released last week which was critical of rehabilitation of Tasmanian prisoners.
In that report, he said programs had been cancelled due to frequent lockdowns.
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