The Green Party says the Government must reveal the extent to which the United States' National Security Agency has passed information on to it, after revelations the NSA was engaged in widespread spying on telephone and internet communications through its Prism system.
Greens co-leader Russel Norman said the revelations about the NSA showed it had the capacity to gather data on telephone, email and social media communications, such as on Facebook.
"The question is to what extent has the New Zealand Government been availing itself of that information intercepted by the NSA with regards to New Zealand citizens?"
The Guardian has reported that the United Kingdom received a number of reports about its citizens through the NSA's data collection.
"We need to know to what extent has the New Zealand Government been using Prism, through the USA, to find out about the activities of New Zealand citizens," Dr Norman said.