VEHICLE WAS DRIVING AT APPROXIMATELY 30 MILES AN HOUR CAME TO A RED LIGHT, DEPRESSED BRAKES HAD VIRTUALLY NO RESPONSE FROM BRAKE PEDAL. BRAKES ARE FAIRLY NEW A MECHANICALLY SOUND BUT DID NOT RESPOND TO A HARD EMERGENCY STOP ATTEMPT AND RESULTED IN AN ACCIDENT WITH MINOR BUMPS AND BRUISES TYPE INJURIES. THE ACCIDENT OCCURRED AT A CONTROLLED INTERSECTION AS THE LIGHT WAS TURNING RED BUT RESULTED IN THE VEHICLE GOING ENTIRELY THROUGH THE INTERSECTION AND STRIKING A CROSSING VEHICLE. CROSSING VEHICLE WAS VIRTUALLY UNDAMAGED AS IT WAS A HEAVY DUTY FLATBED TOW TRUCK BUT THE COROLLA INVOLVED IS POTENTIALLY TOTALED OR NEAR TOTAL FRONT END DAMAGE