Leason v Attorney-General - [2014] 2 NZLR 224

Tort — Trespass — Defences — Defence of another — Necessity — Ex turpi causa non oritur actio — Damage to GCSB satellite facility — Intention to prevent information gathering in support of overseas wars — Claim that land occupied illegally or used illegally — Whether actions proportionate or reasonable response to perceived danger to persons — Whether public conscience affronted — Crimes Act 1961, s 48A.