DOC Internal Security Investigator II - Northern Region Investigations

Job Requisition ID: 51830 
Closing Date: 12/15/2025 11:59 p.m.
​Agency: Department of Corrections - Northern Region Office
Class Title: INTERNAL SECURITY INV II - 21732 
Skill Option: None 
Bilingual Option: None
Salary: Anticipated Starting Salary is $7,567; Anticipated Starting Salary Range: $7,567 - $9,000/ a month
Job Type: Salaried
Category: Full Time 
County: Cook
Number of Vacancies: 1
Bargaining Unit Code: None
Merit Comp Code: Confidential Exclusion from RC090 Collective Bargaining Coverage

A resume is highly encouraged to evaluate your qualifications and skills as part of your application.  Please attach a DETAILED Resume/Curriculum Vitae (CV) to the MY DOCUMENTS section of your application if you decide to provide one.

Why Work for Illinois?

Working with the State of Illinois is a testament to the values of compassion, equity, and dedication that define our state. Whether you’re helping to improve schools, protect our natural resources, or support families in need, you’re part of something bigger—something that touches the lives of every person who calls Illinois home.

No matter what state career you’re looking for, we offer jobs that fit your life and your schedule—flexible jobs that provide the gold standard of benefits. Our employees can take advantage of various avenues to advance their careers and realize their dreams. Our top-tier benefits and great retirement packages can help you build a rewarding career and lasting future with the State of Illinois.

Position Overview

The Internal Security Investigator position serves as a lead investigator of incidents and complaints of administrative and criminal nature for various areas and agencies. This covers all facilities and their satellite facilities, along with juvenile facilities, and parole offices. The ideal candidate should be able to interview individuals in custody, employees, and management staff to solve and gather facts to conclude cases in a timely manner. We encourage all qualified individuals to apply.

Essential Functions

• Conducts investigations involving highly responsible and confidential cases regarding alleged violations of security threats, Department Rules or Administrative Directives or criminal offenses by individuals in custody, agency/staff, students, or parolees.
• Interviews persons and compiles pertinent investigation data and information to be analyzed and forwarded for administrative action or inclusion in the Corrections Intelligence Database.
• Writes comprehensive reports identifying the facts and findings in investigations and reviews all reports for clarity, accuracy, and completeness prior to submittal to the Internal Investigations Unit Supervisor. 
• Keeps a chronological log of cases assigned to be investigated for periodic review by Unit Supervisor.
• Serves as liaison with other Department of Corrections Investigators, State's Attorneys, federal, in-state, out-of-state and local law enforcement agencies.
• Performs other duties as required or assigned, which are reasonably within the scope of the duties enumerated above.

Minimum Qualifications

• Requires knowledge, skill and mental development equivalent to completion of two years of college, with coursework in law, government, liberal arts, history or business or public administration, plus four years of professional experience in law enforcement investigatory work or a related field; OR Requires knowledge, skill and mental development equivalent to completion of four years of college, with major coursework in law, government, liberal arts, history or business or public administration, plus two years professional experience in law enforcement investigatory work or a related field;

OR

Requires knowledge, skill and mental development equivalent to completion of a master's degree, with major course work in law, government, liberal arts, history or business or public administration plus one year professional experience in law enforcement investigatory work or a related field;

OR

Requires completion of the F.B.I National Academy or comparab