There are two Divisions to the Illinois FBI: the Chicago Division and the Springfield Division. The Chicago Division includes Northern Illinois and 18 counties, and the Springfield Division which covers Central and Southern Illinois.

The Illinois Division does a lot of work in counterterrorism. The Chicago Division was critical in solving the David Coleman Headley case in 2008, conceding terrorist attacks in Mumbai, India. They also dealt with Operation Family Secrets which included indicting 14 members of an organized crime ring that was suspected of committing 18 unsolved mob murders.

The Springfield Division has been pivotal in many national security cases, playing a huge role in the apprehension of Ali Saleh Kahlah al-Marri in 2009, a criminal who admitted he was guilt of giving Al Qaeda materials.

The Chicago Division can be found on West Roosevelt Road, while the Springfield Division can be found on East Linton Avenue. There are also several satellite offices in the Chicago Division, which include:
1. The North Resident Agency (in Rolling Meadows, IL).
2. The Rockford Resident Agency (in Rockford, IL).
3. The South Resident Agency (in Orlando Park, IL).
4. West Resident Agency (in Lisle, IL).

The Springfield Division’s satellite offices include:
1. Champaign.
2. Decatur.
3. Fairview Heights.
4. Marion.
5. Peoria.
6. Quad Cities (which is shared with the Omaha Division).

Illinois has many varies FBI careers available, because the state is so big, and there are so many activities to keep track of. Specialist careers available include:

1. Economic Analysts.
2. Linguists.
3. Support Professionals.
4. Special Agents.
5. Investigative Experts.
6. Intelligence Analysts.
7. Security Professionals.
8. Electronics Technicians.
9. Paralegals

There are also special units including:
1. Evidence Recovery and Processing: Chicago has four, ten-member Evidence Response Teams in Chicago. Their job is to investigate crime scenes and analyse from the scene.
2. Tactical Support and Crisis Response: The Chicago and Springfield Divisions both have their own SWAT teams. They are tasked with getting through barricades, dealing with hostage situations, catching dangerous and armed offenders, surveilling areas, providing security, and helping local law enforcement when needed.
3. Translation: These linguists are responsible for employing their language skills in the defence of national security. They interview and interrogate witnesses and suspects and cooperated with local law enforcement officials.
4. Computer Forensics: Illinois’ Computer Analysis and Response Team (CART) deal with electronic evidence and assist the Chicago Regional Computer Forensics Laboratory.
5. Bomb Recovery and Analysis: There are four FBI bomb technicians between the Chicago and Springfield Divisions of the FBI. They cooperate with the Join Terrorism Task Forces to deal with dangerous explosives situations.
6. Hazardous Materials: There is a 16-member HAZMAT team responsible for dealing with dangerous materials including chemical, radiological and biological waste.

The FBI in Illinois involve works with regional, state, federal, and international groups and has the ongoing task of fostering relationships. In Chicago, these include:
1. The Chicago Joint Terrorism Task Force.
2. The Chicago Field Intelligence Group.
3. The FBI Counterintelligence Strategic Partnerships Program.
4. The Innocent Images Task Force which deals with cyber crime.
5. The Regional Computer Forensics Laboratory, also dealing with cyber crime.
6. The Chicago InfraGard Chapter, also dealing with cyber crime.
7. The Violent Crimes Task Force.
8. The Joint Task Force on Gangs.

In the Springfield Division, these include:
1. The Springfield Joint Terrorism Task Force.
2. The Springfield Field Intelligence Group.
3. The FBI Counterintelligence Domain Program.
4. The Springfield InfraGard Chapter.

Becoming an FBI Agent in Illinois

There are very stringent entry requirements for entry to the FBI. Candidates must:

1. Be a citizen of the U.S. or U.S. territory.
2. Be between the ages of 23 and 37 (although veterans may still be eligible).
3. Have at least a four year bachelor’s degree.
4. Have at least three years of relevant work experience.
5. Have a valid U.S. drivers licence.
6. Be willing to travel anywhere on assignment.
7. Pass and FBI background check.
8. Pass an FBI medical exam and fitness tests

Candidates for GBI jobs in Illinois and it’s Divisions must also enrol in a Special Agent Entry program. There are five of these, and they are:

1. Accounting.
2. Computer Science/Information Technology.
3. Linguistics.
4. Law.
5. Diversified.