Who may file a complaint?

NewZealand Electoral Act 1993 (2010), Part 8 –Election petitions, p. 346

230Election petitions to High Court

(1) An election petition to which section 229(3) applies may be

presented to the High Court by 1 or more of the following

persons:

(a) a person who voted or had a right to vote at the election:

(b) a person claiming to have had a right to be elected or

returned at the election:

(c) a person alleging himself or herself to have been aconstituency

candidate at the election.

http://aceproject.org/ero-en/regions/pacific/NZ/new-zealand-electoral-act-2010/view