New Zealand's first register of child sex offenders is to be set-up - with the Government saying currently such people can "disappear into communities".
Police and the Corrections Department will run the register, which will be established under legislation introduced to Parliament today.
Offenders will need to provide a range of information including fingerprints, photographs, aliases, address, workplace and employer, car registration, computer IP address and passport details.
Social Development Minister Anne Tolley said such a register would breach the rights of those on it.
"Yes it does [breach people's rights]. But from the point of view of the Government and communities, you are saying, what is the most important thing - that we do keep our children safe and take all reasonable steps...or, that we give these offenders more protection. Because they can disappear into our communities now and nobody knows where they are, let alone the police."