Criminal Investigations Division

The division provides general and specialized investigative services throughout the county, based upon the need for county-wide jurisdiction, to conduct an investigation and upon the availability of investigative resources in county municipal police departments.

Responsibilities
The primary function of Criminal Investigations Detectives is to investigate reported violations of Missouri criminal law, which occurs within the county, and it is their responsibility to gather both the physical evidence and factual information required to identify and apprehend offenders and to assist the St. Charles County Prosecuting Attorney’s Office in the prosecution of those offenders.

Detectives are assigned to crimes that vary from burglary, robbery, credit card and identity fraud, computer crime, homicide and missing person cases. Detectives also serve search warrants and subpoenas in the course of their investigations.

Partnerships
Detectives are assigned the investigation of crimes that are reported in the unincorporated areas of the county. Detectives routinely collaborate with detectives and investigators from county municipal police departments, law enforcement in the St. Louis metro area, law enforcement in surrounding counties, and federal agencies. The goal is to work with local, state, and federal investigative agencies in order to share information, leads and resources.

Detectives are members of the Greater St. Louis Major Case Squad.