Iris scanners are not hard to implement from a few meters in a controlled environment like immigration. I would assume Iris scanners are normal - but I couldn'

Iris scanners are not hard to implement from a few meters in a controlled environment like immigration. I would assume Iris scanners are normal - but I couldn't find anything to corroborate that for immigration control in NZ (legally they can, and I thought the equipment did, but I couldn't verify).