the questioned decision of the second division of the comelec , dated july 23 , 1984 , proclaiming private respondent , arturo f. pacificador , as the duly elected assemblyman of the province of antique , should be set aside for the legal reason that all election contests , without any distinction as to cases or contests , involving members of the defunct batasang pambansa fall under the jurisdiction of the comelec en banc pursuant to sections 2 and 3 of article xii-c of the 1973 constitution .