Biosecurity is the protection of an environment from biological threats. In New Zealand action is taken to prevent unwanted organisms from damaging the economy, natural biodiversity, or the health of the New Zealand public.
The Department of Conservation states “Biosecurity is about keeping New Zealand free of unwanted organisms and for controlling, managing or eradicating them should they arrive in the country, to prevent or reduce any damage these may cause should they occur, and to protect and preserve the land, water, industry and people of New Zealand”.