A couple who set up a business in New Zealand have been described as a threat to national security.
The Security Intelligence Service says it has found a person in New Zealand who is working for a foreign state's intelligence services.
The SIS failed to lodge a complaint with the police, a former spy says.
"I consider we were independent in my time."
Richard Northey says it was "outrageous" the SIS kept tabs on him while he was an MP.
It comes amid revelations our SIS worked with MI6 to raid foreign embassies in Wellington in the 1980s.