"NZ needs a sex offenders register that anyone that is convicted is listed on (name suppression or not) and it should be available on a web page or at a local government office."
The problem with a list like in America is where teenagers get it on, one may be 14-15 the other 17-18 and all of a sudden the older one is classed as a sex offender and his / her life is ruined. Unfortunately there is no easy answer.