|St. Louis County Prosecuting Attorney||Clayton||Missouri 63105||8 miles|
|St. Louis County Prosecuting Attorney||St. Louis||Missouri 63101||10 miles|
|St. Charles County Prosecuting Attorney||St. Charles||Missouri 63301||11 miles|
|Madison County State Attorney||Edwardsville||Illinois 62025||18 miles|
|St. Clair County State Attorney||Belleville||Illinois 62220||23 miles|
|Jersey County State Attorney||Jerseyville||Illinois 62052||25 miles|
|Monroe County State Attorney||Waterloo||Illinois 62298||30 miles|
|Calhoun County State Attorney||Hardin||Illinois 62047||33 miles|
|Greene County State Attorney||Carrollton||Illinois 62016||38 miles|
|Jefferson County Prosecuting Attorney||Hillsboro||Missouri 63050||39 miles|
|Lincoln County Prosecuting Attorney||Troy||Missouri 63379||40 miles|
|Macoupin County State Attorney||Carlinville||Illinois 62626||42 miles|
|Franklin County Prosecuting Attorney||Union||Missouri 63084||45 miles|
District attorneys (DAs) are the highest-ranking law enforcement officials in their jurisdictions. Their authority is usually county-wide, although some district attorneys represent large cities. As long as they have probable cause, district attorneys have complete discretion in filing charges against individuals. Informed by police investigations, district attorneys may charge anyone with misdemeanors or felonies.
District attorneys review the available evidence and assess witness credibility to determine whether a suspect may have committed a particular crime. A DA may charge a suspect directly or may refer the evidence to a grand jury to consider an indictment against a suspect.
District attorneys are responsible for prosecuting defendants in court. They present the evidence and arguments to a judge or jury, oppose the arguments of a criminal defense attorney, and work to obtain a conviction against the defendant.