|Lake County Sheriff's Office||Crown Point||Indiana 46307|
|Porter County Sheriff's Office||Valparaiso||Indiana 46383||18 miles|
|Cook County Sheriff's Office||Chicago||Illinois 60602||31 miles|
|Laporte County Sheriff's Office||La Porte||Indiana 46350||35 miles|
|Kankakee County Sheriff's Office||Kankakee||Illinois 60901||36 miles|
|Will County Sheriff's Office||Joliet||Illinois 60432||37 miles|
|Jasper County Sheriff's Office||Rensselaer||Indiana 47978||39 miles|
|Starke County Sheriff's Office||Knox||Indiana 46534||41 miles|
|Dupage County Sheriff's Office||Wheaton||Illinois 60187||48 miles|
|Newton County Sheriff's Office||Kentland||Indiana 47951||49 miles|
|Pulaski County Sheriff's Office||Winamac||Indiana 46996||50 miles|
|Iroquois County Sheriff's Office||Watseka||Illinois 60970||52 miles|
|Grundy County Sheriff's Office||Morris||Illinois 60450||55 miles|
|Marshall County Sheriff's Office||Plymouth||Indiana 46563||55 miles|
|Kane County Sheriff's Office||St. Charles||Illinois 60175||57 miles|
|Kendall County Sheriff's Office||Yorkville||Illinois 60560||58 miles|
|White County Sheriff's Office||Monticello||Indiana 47960||59 miles|
|Benton County Sheriff's Office||Fowler||Indiana 47944||59 miles|
|St Joseph County Sheriff's Office||South Bend||Indiana 46601||59 miles|
|Berrien County Sheriff's Office||St. Joseph||Michigan 49085||64 miles|
A sheriff is an elected law enforcement official who serves a specific county. Many of the responsibilities of the sheriff overlap with those of local police departments. The biggest difference is that a sheriff has jurisdiction over the entire county, while police departments can only enforce laws within city limits.
While sheriffs share law enforcement duties with city police officers, their degree of responsibility varies by jurisdiction. Municipalities with limited resources often contract law enforcement services to the sheriff, especially for complex crimes where they may not be equipped to conduct a detailed investigation.
Sheriffs tend to be more involved in cases where a suspect operates across city lines. Since they have the authority to investigate crimes and make arrests in any city in their jurisdiction, they often act as a bridge between various municipal law enforcement agencies in that jurisdiction.