Now that the SIS has withdrawn the Security Risk Certificate against Ahmed Zaoui, he will be treated as a refugee. That means he will automatically be granted Permanent Residence, and be able to do all the things Permanent Residents can do.
One of the things Permanent Residents can do in this country is vote.
So, who will Zaoui vote for next election? Though I think we can bet safely that it won't be Winston Peters.