(1) A complaint due to irregularities in the procedure of candidacy or in the procedure of election of members of the representative bodies of units may be filed by a political party, the leader of a list of candidates of voters, candidates, at least 100 voters or at least 5% of voters of a unit in which the elections are being held.

(2) In the procedure of candidacy or in the procedure of the election of members of the executive body of a unit, a complaint may be filed by political parties, candidates, at least 100 voters or at least 5% of voters of a unit in which the elections are being held.

(3) If a list of candidates or a candidate was proposed by several political parties, the complaint shall be considered valid even if it is filed by one political party. Political parties shall determine on the basis of their statutes who is deemed to be authorised to file a complaint.