Collinsville

Historical marker location:

703 West Main St, Collinsville, Illinois

( Marker is on North Combs Avenue just north of West Main Street, on the left when traveling south.)

Main Street of America.

The Illinois State Police, founded in 1922, is one of the oldest state police agencies in the United States. The agency is responsible for enforcing state laws, protecting state property, and providing security for the governor and other state officials.