The Alliance Against Intoxicated Motorists released its 2008 statistics for the Illinois Police Departments with the most DUI arrests:

Rank:
2008 DUI Arrests

Municipality

2008 DUI Arrests

Percent Change
from 2007 to 2008

2007 DUI Arrests
(per officer)

1
Rockford

785
 

9.8%
 

715
 

2
Naperville

651
 

-4.7%
 

683
 

3
Decatur

648
 

121.2%
 

293
 

4
Carol Stream

604
 

14.6%
 

527
 

5
Waukegan

438
 

1.4%
 

432
 

6
Mundelein

434
 

25.4%
 

346
 

7
Rock Island

432
 

38.5%
 

312
 

8
Aurora

420
 

88.3%
 

223
 

9
Alton

384
 

no report
 

10
Springfield

375
 

-5.8%
 

398
 

11
Elgin

357
 

28.4%
 

278
 

12 [...]

Illinois Police officers with the most DUI arrests in 2008.

If you are 21 years old or older, under Illinois DUI laws, you can be charged with a DUI if you have a blood-alcohol concentration (BAC) of .08 or more.  Typically, a 170-pound male must consume four or more drinks, in one hour, on an empty stomach, to reach a .08.  A 137-pound female must [...]