I don't think three-strikes laws exist anywhere other than in the US to be honest.
There's even judges who love baseball so much they quote it in opinions lol.
I don't know enough about New Zealand politics to know if those parties have a chance of actually doing so.
[1] I say sadly, less because I like the current government, and more because they seem desperate to import Bannon-esque culture war nonsense like attacking women's rights.