A system for automatically monitoring traffic, identifying vehicles traveling in violation of predetermined regulations and for automatically and immediately issuing traffic citations includes an audio or visual signal to the operator of the motor vehicle that they are in violation of regulations and receiving a citation. A printer is included in the vehicle and activatible from a remote station to immediately print the citation. A vehicle disposed receiver/transmitter/comparator includes ownership data that is transmitted to a remote station together with operating data that may result in an infraction.