Northern Territory Consolidated Acts Northern Territory Consolidated Acts26. Execution of law, &c.
(1) An act, omission or event is authorized if it is done, made or caused:
(a) in the exercise of a right granted or recognized by law;
(b) in execution of the law or in obedience to, or in conformity with, the law;
(c) in obedience to the order of a competent authority whom the person doing, making or causing it is bound by law to obey, unless the order is manifestly unlawful; or
(d) subject to subsection (3), pursuant to authority, permission or licence lawfully granted.
(2) Whether an order is or is not manifestly unlawful is a question of law.
(3) A person cannot authorize or permit another to kill him or, except in the case of medical treatment, to cause him serious harm.