Police Cruiser is a PalmOS program that allows an officer to log tag numbers of passing vehicles. It automatically date and time stamps each entry as tags are logged. When a same tag number is entered again, Police Cruiser determines if the tag has passed more than the allowed number of times within a specified time frame. If so, the officer is immediately informed. Police Cruiser also allows an officer to maintain a list of tags for vehicles that should be stopped regardless of the number of times the vehicle passes. Supports extended vehicle description.