St. Charles Police Department employs 112 sworn officers and 60 full- and part-time civilian employees. Police officers teach Drug Abuse Resistance Education classes to area students in fifth and seventh grades and serve as School Resource Officers in area middle and high schools.
Community members are encouraged to report tips to the Police by calling the Crime Stoppers tip line. Callers can receive a cash award for their information if it helps with the eventual arrest of a felony offender. Callers can remain anonymous. The hotline is 636-949-3333.
The city's municipal court is also located at this building. Residents can pay fines or tickets by cash or money order during office hours or in the 24-hour drop box.