A system and method for monitoring individuals using voice print matching to match monitored speech with stored voice prints is disclosed. Voice prints of individuals are obtained and stored in a central repository for use by authorized agencies or other entity that monitor voice communications. The digitized voice prints may be used to identify the speakers being monitored. If the conversation being monitored causes the monitor, based on their predetermined alert criteria, to suspect the speakers of illegal activity, such as, for example, terrorism, or otherwise cause the monitor to seek additional information about the speakers, the monitor may access information associated with the voice print and retrieve the information associated with those individuals so that this information may be passed along to the appropriate agency or organization for further action.