The country and soldier at the centre of a New Zealand espionage trial is to remain a secret.
The soldier facing 17 charges was arrested in December 2019.
They appeared via audio-visual link at the Linton Military Camp today.
The names of several Crown witnesses and the nature of their work have also been suppressed.
Waikato University law professor, Al Gillespie, says knowing it's a country, not an organisation, is big.