| State Agencies/ Other Agencies | Agency | Unit/Office | Total law enforcement employees | Total officers | Total civilians |
|---|---|---|---|---|---|
| State Agencies | Illinois Commerce Commission | 15 | 8 | 7 | |
| Illinois Department of Natural Resources | 164 | 148 | 16 | ||
| Secretary of State Police | District 3 |
217 | 97 | 120 | |
| Other Agencies | Burlington Northern Santa Fe Railroad | 22 | 19 | 3 | |
| Capitol Airport Authority | 4 | 4 | 0 | ||
| Chicago Fire Department | Arson Investigations |
15 | 4 | 11 | |
| Cook County Forest Preserve | 88 | 83 | 5 | ||
| Crystal Lake Park District | 3 | 3 | 0 | ||
| CSX Transportation | 24 | 24 | 0 | ||
| Decatur Park District | 5 | 5 | 0 | ||
| Du Page County Forest Preserve | 29 | 25 | 4 | ||
| Elgin, Joliet and Eastern Railway | 5 | 5 | 0 | ||
| John H. Stroger Hospital | 63 | 57 | 6 | ||
| Lake County Forest Preserve | 19 | 17 | 2 | ||
| Norfolk Southern Railway | 50 | 49 | 1 | ||
| Pekin Park District | 1 | 1 | 0 | ||
| Rockford Park District | 19 | 18 | 1 | ||
| Springfield Park District | 2 | 2 | 0 | ||
| Will County Forest Preserve | 15 | 14 | 1 |
Provides the methodology used in constructing this table and other pertinent information about this table.