AGRICULTURE - COMMON ORGANIZATION OF THE MARKET - BEEF AND VEAL - FROZEN MEAT INTENDED FOR PROCESSING - IMPORTATION SUBJECT TO SUSPENSION OF THE LEVY - TIME-LIMIT FOR PROCESSING - FAILURE TO OBSERVE - FORFEITURE OF SECURITY BY WAY OF LEVY - BREACH OF PRINCIPLE OF PROPORTIONALITY - NONE ( COMMISSION REGULATION NO 572/78 , ART . 1 ( 3 ))