Transmits and receives coded and conventional messages to and from Sheriff stations and administrative, investigative, and patrol units via voice and digital communications. Differentiates between routine, priority, and emergency messages and initiates or follows through on responses or advises supervisory personnel as required. Evaluates, selects, and acts upon the most urgent multiple messages received from field units and re-establishes contact with bypassed units in order of apparent urgency. Expedites emergency radio traffic between stations and field units by coordinating assistance response of personnel and equipment through the selection and utilization of communication channels that best meet the needs of the specific situation. Upon request of field units, selects and interrogates nationwide criminal justice data banks using a keyboard and monitor to obtain information on warrants, driver history, missing persons, vehicles, firearms, and miscellaneous property. Analyzes the response for compatibility with the request and relays it to the requesting field unit. Enters unit responses and clearances into the Sheriff’s Computer Aided Dispatch System