Trans-Tasman Mutual Recognition Act 1997

A local registration authority who has possession or control of a record that contains personal information that was obtained under this Act for a particular purpose must not use the information for any other purpose unless—

the individual concerned has consented to use of the information for that other purpose; or

of the information for that other purpose is required or authorised by or under law; or

use of the information for that other purpose is reasonably necessary for enforcement of the criminal law or of a law imposing a pecuniary penalty, or for the protection of the public revenue.

Where personal information is used for enforcement of the criminal law or of a law imposing a pecuniary penalty, or for the protection of the public revenue, the local registration authority must include in the record containing that information a note of that use.