Beak

originally a magistrate, judge, or policeman; now a magistrate only; “to baffle the BEAK ,” to get remanded. Ancient Cant , BECK . Saxon , BEAG , a necklace or gold collar—emblem of authority. Sir John Fielding was called the BLIND-BEAK in the last century. Maybe connected with the Italian BECCO , which means a (bird’s) beak , and also a blockhead .— See WALKER .