Thousands of New Zealanders travelling to Australia could have "biometric data" such as facial recognition data, iris scans and fingerprints collected, stored and shared among security agencies across the Tasman.
The measures are part of new counter-terrorism laws which may serve as the model for similar legislation in this country.
The "foreign fighter" laws being scrutinised by Australia's Parliament will initially expand the use of SmartGate passport control terminals which use digital imaging and facial recognition technology. However, the bill also allows for the collection and storage of iris scans and fingerprints.
The Australian Customs and Border Protection Service estimates that between 40 and 60 per cent of the 35 million travellers - including New Zealanders - leaving and entering Australia each year would be photographed under the new law.
The department would also be able to share the biometric information for "specified purposes", although the new legislation's explanatory memoranda does not explain what these purposes are, the Sydney Morning Herald reported.