(Springfield) -- State auditors are once again blasting Illinois' prison system.

In a scathing report, Illinois Auditor General Bill Holland takes the Department of Corrections to task for everything from poor record keeping to wasting millions of dollars.

The report says Illinois prisons still owe millions of dollars to other parts of state government, ran up millions in un-approaved spending, and never hired prison guards Illinois lawmakers paid for over in 2007 and 2008.

The audit focused on years of the Blagojevich administration, and lawmakers say that's part of the problem.

In addition to poor record keeping, DOC is being criticized for not spending 12-million dollars on new frontline staff, but instead paying guards already on the job.

DOC also used money to pay millions in overtime.

The audit notes that 126 prison workers made over 100-thousand dollars a year because of overtime needs that were blamed on "understaffing." The last money mistake noted in the report is that DOC was on the hook for the salary of one worker in the Governor's budget office.

Republican State Senator Dan Rutherford says the audit just reenforces the need to be responsible with the tax payers money.

The audit also comes as Governor Pat Quinn wants to cut millions from the prison system.

Democratic State Representative Emily McAsey says she wants to make sure prison officials are doing everything they can to save money, before they even consider closing a prison.

She has the Stateville prison near Joliet in her district, and says the audit has left her with a lot more questions than answers.

The union that represents prison guards in the state says the report is just another example of their complaints that the prison system is in danger of becoming a threat to workers.

DOC officials say the department is hiring new guards and trying to add workers to the frontline.