HE WAS MOST LIKELY USING THE HOLD FEATURE ON HIS RADAR..DOESNT SEND OUT A FREQUENCY UNTIL HE PRESSES A BUTTON AND THEN HE CAN LET OFF THE BUTTON AND HAVE SPEED LOCKED...ALL FASTER THAN YOUR DETECTOR CAN PICK IT UP...TROOPERS IM MY DISTRICT DONT HAVE LASER....BUT IF IT WAS LASER MOST LIKELY YOUR...