09 April 2020 – All arrivals required to enter managed isolation for 14 days

Type of Intervention: Executive Order
Sectors Involved: Civil Defence, Health, Immigration
Intervention Categories: International travel measures
Level of Jurisdiction: National
Lead People/Agency: Prime Minister Jacinda Ardern

Overview: 14 day quarantine (not just self-isolation) imposed for anyone, including citizens, entering NZ
Full details here: https://covid19.govt.nz/latest-updates/managed-isolation-of-new-arrivals-to-new-zealand/

Other links: 1
Type of Justification: Advice of INTERNAL government advisory committee or group, Advice of EXTERNAL expert advisor or advisory committee, former chief science advisor speaks to media
Source of Evidence or Justification: National – academic, National – government
Evidence/Justification: New Zealand island geography makes border control the most obvious answer