The Vernon Hills Police department has several full-time Community Service Officers, commonly referred to as CSOs. A CSO is a civilian (non-sworn) Department employee whose work includes responsibility for a variety of quasi law enforcement and general support activities. A CSO's work includes the enforcement of animal and parking violations, as well as the investigation of minor traffic crashes on private property and calls for general public service assistance. A CSO also:
Assists with traffic control duties at the scene of a traffic crash.