57. What power is granted to the institution(s) responsible for examining reports and/or investigating violations?

COMELEC RULES OF PROCEDURE (1993)

"Authority of the Commission to Prosecute Election Offenses. - The Commission shall have the exclusive power to conduct preliminary investigation of all election offenses punishable under the election laws and to prosecute the same, except as may otherwise be provided by law" (Rule 34, Section 1)