PremiumOpinionRichard Prebble is a former Labour Party minister and Act Party leader.

‌The Government has said it will spend $1.9 billion more on prisons over the next four years. Photo / Michael CraigThe Government has said it will spend $1.9 billion more on prisons over the next four years. Photo / Michael CraigFuture generations will look back at some things we do and wonder how we thought them normal.On my first day at school my teacher struck my knuckles with a ruler every time I picked up my pencil with my left hand.

No one thought that was unusual. That was