1911. The Mental Defectives Act in New Zealand was implemented in 1911 and it authorized the segregation of “mental defectives.” It later added a sterilization clause to the law. Although New Zealand passed this law and established a eugenics board to oversee the confinement of “defectives,” it had little success enforcing the law.
-Erna Kurbegovic
Garton, S. (2010). Eugenics in Australia and New Zealand: Laboratories of Racial Science. The Oxford Handbook of the History of Eugenics. P. Levine & A. Bashford (Eds.). Oxford: Oxford University Press.