The Criminal Investigations Division encompasses what was at one time the Detective Bureau and the Narcotics Unit. Detectives are members of the St Joseph County Major Crimes Task Force and designated to investigate incidents such as homicide, rape and robberies. Detectives are assigned to assist the Uniformed Services Division with criminal cases that are frequently Criminal Sexual Conduct and fraud cases depending upon the type of crime. They are assigned their own cases that are most frequently Criminal Sexual Conduct and fraud cases.

Detectives have received specialized training in modern investigative techniques and interview and interrogation methods. They are task with major case organization and presentation for criminal prosecution.

The Narcotic Unit works in combination with the local law enforcement and Michigan State Police forming the SWET South Enforcement Team. The Sheriff’s Office has two investigators assigned to the Unit. The day-to-day operations are managed through the St. Joseph County Sheriff’s Office and the Michigan State Police.

The Narcotic Units objective is to keep our citizens safe and secure through the investigations of the sales and manufacture of controlled substances that have included Heroin, LSD, Cocaine, and Methamphetamines as well as illicit use or sale of prescription and other regulated controlled substances.