The spokesperson explained that to be suitable to hold a national security clearance at any level, the person needs to possess and demonstrate an "appropriate level of integrity, and holds character traits such as honesty, trustworthiness and loyalty."
The spokesperson said performing or attempting to perform duties to serve the interests of a foreign person, group, organisation, or government in conflict with New Zealand's national interest would be considered an example of something that would affect someone's suitability for a national security clearance.
As would any employment or service, whether compensated or voluntary, with any foreign citizen, organisation or other entity, including a defence entity.