Title |
Alternative Title |
From |
To
|
United States: State of Illinois, 1818–present / Territory of Illinois, 1809–1818
|
Alton Police Department |
|
? |
?
|
Alton and Southern Railway Police |
|
? |
?
|
Aurora Police Department |
|
? |
?
|
Belleville Police Department |
|
? |
?
|
Belt Railway of Chicago Police |
|
? |
?
|
Berwyn Police Department |
|
? |
?
|
Bloomington Police Department |
|
? |
?
|
Canton Police Department |
|
? |
?
|
Chicago Junction Railway Police |
|
? |
?
|
Chicago Police Department |
|
1855 |
Present
|
Cicero Police Department |
|
? |
?
|
Crystal Lake Park District Police |
|
? |
Present
|
Danville Police Department |
|
? |
?
|
Decatur Police Department |
|
? |
?
|
East Moline Police Department |
|
? |
?
|
East St. Louis Police Department |
|
? |
?
|
Elgin Police Department |
|
? |
?
|
Evanston Police Department |
|
? |
?
|
Fox Valley Park District Police |
|
? |
Present
|
Galesburg Police Department |
|
? |
?
|
Highland Park Police Department |
|
? |
?
|
Illinois Auxiliary State Police |
|
? |
?
|
16th Illinois Cavalry Regiment |
|
? |
?
|
1st Illinois Infantry Regiment |
|
1861 |
?
|
7th Illinois Infantry Regiment |
|
1861 |
?
|
8th Illinois Infantry Regiment |
|
1861 |
?
|
9th Illinois Infantry Regiment |
|
1861 |
?
|
10th Illinois Infantry Regiment |
|
1861 |
?
|
11th Illinois Infantry Regiment |
|
1861 |
?
|
12th Illinois Infantry Regiment |
|
1861 |
?
|
13th Illinois Infantry Regiment |
|
1861 |
?
|
14th Illinois Infantry Regiment |
|
1861 |
?
|
15th Illinois Infantry Regiment |
|
1861 |
?
|
16th Illinois Infantry Regiment |
|
1861 |
?
|
17th Illinois Infantry Regiment |
|
1861 |
?
|
18th Illinois Infantry Regiment |
|
1861 |
?
|
19th Illinois Infantry Regiment |
|
1861 |
?
|
20th Illinois Infantry Regiment |
|
1861 |
?
|
21st Illinois Infantry Regiment |
|
1861 |
?
|
22nd Illinois Infantry Regiment |
|
1861 |
?
|
92nd Illinois Infantry Regiment |
|
186? |
186?
|
98th Illinois Infantry Regiment |
|
186? |
186?
|
Illinois State Bureau of Identification and Investigation |
|
? |
?
|
Illinois State Highway Maintenance Police |
|
1923 |
1957
|
Illinois State Highway Patrol |
|
1922 |
1939
|
Illinois State Police |
|
1957 |
Present
|
Illinois State Police Auxiliary |
|
? |
?
|
Illinois Volunteer Militia |
|
1863 |
186?
|
1st Illinois Volunteer Militia Regiment |
|
1863 |
186?
|
2nd Illinois Volunteer Militia Regiment |
|
1863 |
186?
|
Joliet Police Department |
|
? |
?
|
Lockport Police Department |
|
? |
?
|
Lockport Township Park District Police Department |
|
? |
Present
|
Morton Grove Park District Police |
|
? |
Present
|
Naperville Park District Police |
|
? |
Present
|
Oak Park Police Department |
|
? |
?
|
Ottawa Police Department |
|
? |
?
|
Peoria Park District Police Department |
|
? |
Present
|
Peoria Police Department |
|
? |
?
|
Peoria Railroad Terminal Police |
|
? |
?
|
Quincy Police Department |
|
? |
?
|
Rockford Park District Police |
|
? |
Present
|
Rockford Police Department |
|
? |
?
|
Springfield Park District Police Department |
|
? |
Present
|