Office of the Sheriff

sheriff dave marshak

Sheriff Dave Marshak

Sheriff Dave Marshak started his law enforcement career in 1991. Elected in 2016, Sheriff Marshak was sworn into office in January 2017.

Marshak worked for two municipal police departments in St. Louis County before joining the Sheriff's Office in 1994. As a Deputy, he worked as a patrol officer and field training officer and then moved to the department's Special Operations Division. He became the SWAT Team Commander and oversaw the division, including SWAT, firearms, canine, traffic, DWI/alcohol enforcement, emergency management, and community relations. The majority of his career was spent in special operations and criminal investigations. But for a few of those years, he commanded other divisions within the department. Once promoted to Captain, he was responsible for the Law Enforcement Group, which included special investigations, detectives, narcotics, special operations, and all road patrol platoons.

Before being elected, Sheriff Marshak was an adjunct professor at Jefferson College, where he taught Criminal Investigations and Corrections. He's trained hundreds of officers from Federal, State, and local law enforcement agencies and is a published author for state and national publications in SWAT Tactics and Emergency Management. He's been awarded the Governor's Medal of Valor, the United States Attorney's Office Distinguished Service Award, the Life-Saving Award, the American Legion Officer of the Year Award, and numerous other letters of commendation and recognition.

Sheriff Marshak earned his bachelor's degree in human resource management from Lindenwood University and completed graduate coursework from St. Louis University and Lindenwood University, earning a Master's Degree in Communications with an emphasis in Training and Development from Lindenwood University. He graduated from the FBI National Academy, session #279, and in 2020, Missouri Governor Mike Parson appointed him to the Peace Officer Standards and Training (POST) Commission.

Sheriff Marshak is heavily involved in legislation that impacts Missouri Law Enforcement and has testified in both the House and Senate to further law enforcement agendas. He also serves on the executive board of the Missouri Sheriff's Association.