Fred99:False negatives are way too high, which leads to the risk that people will test negative, fail to get tested properly, and spread covid - that's even assuming people use the tests correctly if they're available for at-home testing.
From Medsafe:
COVID-19 point of care (POC) test kits use a blood or other bodily sample to detect antigens or antibodies in the body. There is concern, internationally, about the accuracy of POC test kits and the potential for them to be misinterpreted or provide a misleading result. The research to date indicates that these tests are not suitable for diagnostic purposes and have poor reliability. However, work on the accuracy and reliability of this type of test is currently being done.
The DG is authorised to approve them at any time when they're deemed useful for pandemic control.
Legislation is already in place to roll them out if and when it's needed:
https://legislation.govt.nz/regulation/public/2021/0066/latest/LMS451450.html
The discussion is about rappid antigen testing. Your quote from medsafe is referring to antibody blood tests. Two completely different types of tests.