In the background of the Bartonville, Illinois, Police Department patch is an outline of the state with a star indicating Bartonville’s location. The rocket depicted on the left is the symbol of Limestone Community High School, whose art students designed the patch, while the steel ladle on the right represents the Keystone Steel and Wire Company. The large building at the bottom represents the Peoria State Mental Hospital, opened in 1902 and closed 70 years later.