Kiwi police voice recordings

[Keypad]

Back in January, on a pre-coronavirus visit to NZ, we got pulled over by a - very polite - policeman. We couldn't figure out what we'd done to attract his attention as we'd been religiously observing the frequent variations in speed limits, hadn't knocked over any grannies or run down any children.

It turned out he was concerned that we were not getting back up to speed after the limit went up (for non-kiwis: the speed limit often goes down as you approach (say) traffic lights, then goes back up again afterwards. Very sensible). So my good lady has the dubious award of being a driver who has been stopped for going too slow !

The intriguing aspect was that, after examining her driving licence, the officer asked her to speak her name into a hand held device of some sort. He didn't say why & we were more than happy to just get on our way.
But it's something we haven't come across before. Can any Kiwi's enlighten me ? I'm guessing it's so licences can't be swapped around (the photos being basically useless, especially for women, where hair styles / colours may change) with the picture not being great to start with.

[KelvinatorNZ]

Sounds like the standard breath test for alcohol. Usually get you to count to ten. It's just a quick check to see if you pass or fail and if you fail it's off to the station for a full test. Nothing to worry about, and not a recording.

[GravelBen]

^^ What he said, standard alcohol breath test.

I suppose getting you to say your name etc instead of just blowing into it is a quick extra check that you know whose name is on the licence you just gave them to look at and helps make sure it has long enough to get a reading.

[Keypad]

Thanks guys.