Illinois's State Law Enforcement

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- Law enforcement operating at the state level -

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Operated & employed by the state's government.

Illinois State Police

Officer Title:
State Trooper

Governing Body:
The Illinois Governor

Jurisdiction:
Statewide

Authority Type:
General

Enforce Traffic Laws:
Yes

Provides general law enforcement services statewide

Officer Title:
Police Officer

Governing Body:
Illinois Department of Natural Resources

Jurisdiction:
Statewide

Authority Type:
Specialized

Enforce Traffic Laws:
Yes

Provide natural resource protection and law enforcement services for Illinois state owned parks

Officer Title:
Police Officer

Governing Body:
Chicago State University

Jurisdiction:
Chicago State University property

Authority Type:
General

Enforce Traffic Laws:
Yes

Provide law enforcement services for Chicago State University campuses

Officer Title:
Police Officer

Governing Body:
Northeastern Illinois University

Jurisdiction:
Northeastern Illinois University property

Authority Type:
General

Enforce Traffic Laws:
Yes

Provide law enforcement services for Northeastern Illinois University campuses

Officer Title:
Police Officer

Governing Body:
University of Illinois Chicago

Jurisdiction:
University of Illinois Chicago property

Authority Type:
General

Enforce Traffic Laws:
Yes

Provide law enforcement services for University of Illinois Chicago campuses

Page last updated: September 12, 2026