WHILE APPROACHING A STOP DURING A HEAVY RAIN SHOWER I BROUGHT THE VEHICLE TO A COMPLETE STOP ABOUT 10 FEET FROM THE VEHICLE IN FRONT OF ME. SUDDENLY, THE VEHICLE ACCELERATED FORWARD. I PRESSED HARDER ON THE BRAKE AND THE VEHICLE JERKED AND SHUDDERED VIOLENTLY. MY FIRST THOUGHT WAS THAT I WAS STRUCK FROM BEHIND BY ANOTHER VEHICLE. I WAS ISSUED A VIOLATION FROM LOUISIANA STATE POLICE FOR FOLLOWING TOO CLOSELY. MY BELIEF IS THAT THE SHUDDERING WAS THE EFFECT OF THE ANTI LOCK BRAKES ACTIVATING. THE DAMAGE TO BOTH VEHICLES WAS RELATIVELY MINOR. THE VEHICLE WAS CHECKED FOR A DEFECT BUT NONE COULD BE FOUND.