The designation of terrorist entities is one measure New Zealand takes to contribute to the international campaign against terrorism. The Terrorism Suppression Act 2002 (TSA) provides for a list of terrorist entities to be established and maintained in New Zealand. Police are responsible for coordinating requests to the Prime Minister for designation as a terrorist entity. The following document is a summary of the periodic review of the designation of Brenton Tarrant as a terrorist entity on 25 July 2026.