Abstract: A method and apparatus for controlling a passage barrier is provided herein. During operation the apparatus will determine a location of all persons authorized to enter through the barrier (e.g., a door). The apparatus will also determine the location of all persons not authorized for entry. Based on the location information, the passage barrier will remain open or closed. More particularly, based on the location information, a door, for example, may remain locked unless properly accessed by an authorized person. Additionally, based on the location information, the door may remain open for all to pass through.