The Springfield bureau of Lee Enterprises newspapers says that means inmates at Big Muddy River Correctional Center in Ina may not be getting enough pre-release treatment.
The John Howard Association report says the prison has three clinical staff members working with nearly 300 sex offenders in two different programs.
Another prison in Rushville that’s operated by the Illinois Department of Human Services has 30 clinical care employees.
The Chicago-based watchdog group says the shortage means some inmates could be released earlier if they were able to receive adequate treatment.
An Illinois Department of Corrections spokesman says the agency’s “committed to providing constitutionally adequate mental health treatment to offenders.”