The Green Party says the New Zealand Government should be helping Dubai investigate an assassination, in which Israeli agents are suspected of using stolen passports.
Police in Dubai say 32 people are wanted in connection with the assassination of a Hamas military commander in a hotel room on 19 January.
The Guardian newspaper in Britain reports one of the suspects is Zev Barkan, who is still wanted in New Zealand in connection with a 2004 case in which two other Israelis were jailed for passport fraud.
Police in Dubai say the suspects used false passports from Britain, Ireland, France, Germany and Australia.
Green Party MP Keith Locke says the Government told him it won't assist and the fraud case involving New Zealand passports has been laid to rest.