| Name |
County |
| Johnson County Sheriff's Office |
Johnson County |
| Johnston City Police Department |
Williamson County |
| Joliet Police Department |
Will County |
| Justice Police Department |
Cook County |
| Kane County Sheriff's Office |
Kane County |
| Kankakee County Sheriff's Office |
Kankakee County |
| Kankakee Police Department |
Kankakee County |
| Kendall County Jail |
Kendall County |
| Kendall County Sheriff's Office |
Kendall County |
| Kenilworth Police Department |
Cook County |
| Kewanee Police Department |
Henry County |
| Kincaid Police Department |
Christian County |
| Kingston Police Department |
DeKalb County |
| Kirkland Police Department |
DeKalb County |
| Knoxville Police Department |
Knox County |
| La Grange Park Police Department |
Cook County |
| La Grange Police Department |
Cook County |
| La Harpe Police Department |
Hancock County |
| La Moille Police Department |
Bureau County |
| La Salle Police Department |
LaSalle County |
| Lacon Police Department |
Marshall County |
| Ladd Police Department |
Bureau County |
| Lake Bluff Police Department |
Lake County |
| Lake County Sheriff's Office Highway Patrol Unit |
Lake County |
| Lake Forest Police Department |
Lake County |
| Lake in the Hills Police Department |
McHenry County |
| Lake Villa Police Department |
Lake County |
| Lake Zurich Police Department |
Lake County |
| Lakemoor Police Department |
Lake County |
| Lakewood Village Police Department |
McHenry County |
| Lanark Police Department |
Carroll County |
| Lansing Police Department |
Cook County |
| LaSalle County Jail |
LaSalle County |
| LaSalle County Sheriff's Office |
LaSalle County |
| Lawrence County Sheriff's Office |
Lawrence County |
| Lawrenceville Police Department |
Lawrence County |
| Lebanon Police Department |
St. Clair County |
| Lee County Sheriff's Office |
Lee County |
| Leland Grove Police Department |
Sangamon County |
| Leland Police Department |
LaSalle County |
| Lemont Police Department |
Cook County |
| Lena Police Department |
Stephenson County |
| Lewistown Police Department |
Fulton County |
| Lexington Police Department |
McLean County |
| Libertyville Police Department |
Lake County |
| Lincolnshire Police Department |
Lake County |
| Lincolnwood Police Department |
Cook County |
| Lindenhurst Police Department |
Lake County |
| Litchfield Police Department |
Montgomery County |
| Livingston County Jail |
Livingston County |
| Livingston County Sheriff's Office |
Livingston County |
| Livingston Police Department |
Madison County |
| Lockport Police Department |
Will County |
| Logan County Sheriff's Office |
Logan County |
| Lombard Police Departmentt |
DuPage County |
| Loves Park Police Department |
Winnebago County |
| Lovington Police Department |
Moultrie County |
| Lyndon Police Department |
Whiteside County |
| Lynwood Police Department |
Cook County |
| Lyons Police Department |
Cook County |
| Mackinaw Police Department |
Tazewell County |
| Macomb Police Department |
McDonough County |
| Macoupin County Jail |
Macoupin County |
| Macoupin County Sheriff's Office |
Macoupin County |
| Madison County Jail |
Madison County |
| Madison County Sheriff's Office |
Madison County |
| Madison Police Department |
Madison County |
| Mahomet Police Department |
Champaign County |
| Malta Police Department |
DeKalb County |
| Manhattan Police Department |
Will County |
| Mansfield Police Department |
Piatt County |
| Manteno Police Department |
Kankakee County |
| Marengo Police Department |
McHenry County |
| Marine Police Department |
Madison County |
| Marion County Sheriff's Office |
Marion County |
