The well-known criminal is serving a life sentence in the Laois prison.
A well-known criminal serving a life sentence in Portlaoise Prison has made a second complaint about the conduct of three prison officers.
Freddie Thompson alleges that the authority of three other, senior staff members is being undermined as a result.
The issue was first flagged in May 2019, when Thompson stated that their actions could go as far as endangering their superiors' lives.
The Irish Examiner reports that an external investigation upheld the claim - but no action was taken against the junior level officers.
Tributes Paid To Westmeath Man Following Search At Midlands Lake
Fire Safety Upgrades Underway at Midlands Hospital
Midlands MEP Calls For Schools To Register In EU Education Programme
Longford-Westmeath TD Demands Measures To Tackle Public Transport Overcrowding
Laois Councillor Calls For Further IDA Engagement
Former Laois Teacher Fined €1,000 After Striking Colleague's Car
Longford-Westmeath TD Slams Online Abuse Against FAI Members
Midlands Digitalisation Expert Expresses Concerns Over New Open AI Model