The Denison Police Department is currently staffed with thirteen sworn full time officers and ten civilian employees. The department is led by Chief John Emswiler. Chief Emswiler joined the department in 1995 as a patrol officer and served as a patrol sergeant and Asst. Chief prior to his appointment as Chief of Police in April of 2015. The patrol staff is comprised of Sgt. Jeremy Behrens and eleven patrol officers.
In addition to providing police protection throughout the city the police department also staffs and manages the County-Wide E-911 Center. The Communications Center is the only public service answering point in Crawford County and is responsible for dispatching the Denison, Dow City, Manillla, and Charter Oak police departments, the Crawford County Sheriff's Office, eight fire departments and their respective EMS first responder personnel, and the Crawford County Memorial Hospital EMT/Paramedic Ambulance Service. The Communications Center is staffed by four full-time and five part-time communication operators
Link to Iowa Law Enforcement Academy
Link to United States Homeland Security Investigations Victims Notification