Aontú leader Peadar Tóibín is calling for a full investigation.
There are calls for a full investigation into allegations that a number of Portlaoise Prison officers intimidated a colleague.
Meath-West TD Peadar Tóibín said an assistant chief officer was forced to continue working at the maximum security prison, 16 months after an inmate first raised the alarm.
The Aontú leader says the prisoner told the governor that three officers were constantly coming into his cell and he felt that they wanted him to do damage to the assistant chief officer.
An external report later found some officers were deliberately trying to undermine the work of senior officers - but they were not sanctioned following its publication.
Deputy Tóibín says he thought long and hard about bringing the issue before the Dáil:
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